Abstract: Laboratory scale experiments are performed in order to characterize the artificial wood drying of Pinus radiata at conventional temperatures and accelerated temperatures. The experimental data allow determining the wood thermal conductivity through inverse methodology. The comparative analysis shows that the implementation of the developed inverse methodology is consistent with information available in the specialized literature; which means increased thermal conductivities with increased humidity and temperature, whose values oscillate between 0,34 and 0,56 (W/m K) to moisture variations between 22% and 64%; and temperatures between 70°C and 90°C, respectively.

Resumen: Se realizan experimentos a escala de laboratorio para caracterizar el secado artificial de madera de pino radiata a temperaturas convencionales y aceleradas, con el propósito de obtener datos que permitan determinar la conductividad térmica de la madera mediante metodología inversa. El análisis comparativo muestra que la implementación de la metodología inversa desarrollada entrega información consistente con datos disponibles en la literatura especializada: conductividades térmicas crecientes con el aumento de la humedad y la temperatura, cuyos valores fluctúan entre 0,34 y 0,56 (W/m K) para variaciones de humedad entre 22% y 64%; y temperaturas entre 70°C a 90°C, respectivamente.

Resumo Com objetivo conhecer o Estado Nutricional - EN e o estilo de vida dos estudantes bolsistas de um restaurante universitário, localizado em Salvador-Ba, Brasil foi realizado com 70 universitários, maiores de 18 anos, em 2016 um estudo de corte transversal através da aplicação de questionário estruturado, com informações socioeconômicas, estilo de vida e atividade física. Avaliou-se também o EN, com cálculo de Índice de Massa Corporal-IMC, Circunferência da Cintura - CC e percentual de gordura - %GC, usando-se para esses os critérios de classificação proposto pela Organização Mundial da Saúde, com a verificação de diferenças significativas entre os sexos, pelo teste de Fisher. A maioria dos entrevistados era de adultos jovens com massa corporal na faixa de normalidade, mas com presença de sobrepeso e obesidade em parcela deles, atrelada ao consumo de álcool, de tabaco e hábitos alimentares inadequados, sendo fatores importantes na gênese de Doenças Crônicas Não Transmissíveis - DCNT.

Abstract In order to know the Nutritional Status - NS and the lifestyle of the students of a university restaurant, located in Salvador-Bahia, Brazil, was carried out with 70 university students, over 18 years of age, in 2016 a cross-sectional study through the application of Structured questionnaire with socioeconomic information, lifestyle and physical activity. It was also evaluated the EN, with calculation of Body Mass Index-BMI, Waist Circumference - WC and percentage of fat -% BF, using the classification criteria proposed by the World Health Organization for verification of Significant differences by the Fisher test, between the sexes. The majority of the interviewees were young adults with normal body mass, but with overweight and obesity in a portion of them, linked to alcohol consumption, tobacco consumption and inadequate eating habits, being important factors in the genesis of Chronic Noncommunicable Diseases - NCDs.

RESUMEN El varamiento de un macho adulto de Balaenoptera physalus (Mysticeti: Balaenopteridae) en playa Los Cocoteros en la isla de Margarita, Venezuela, dio la oportunidad de estudiar su interacción con el tiburón cigarro. Se encontraron 33 lesiones en diversos puntos del tegumento del rorcual, con forma ovalada o redondeada como cráteres, de 5 a 7 cm de largo, 5 a 6 cm de ancho y 3 a 5 cm de profundidad. En su gran mayoría, estaban frescas. Las heridas fueron atribuidas al tiburón Isistius sp. (Elasmobranchii: Dalatiidae), dadas las notables correspondencias. La presente nota constituye la primera asociación conocida entre el tiburón cigarro y la ballena de aleta en aguas venezolanas, caribeñas y del Atlántico occidental.

ABSTRACT The stranding of an adult male Blalaenoptera Physalus (Mysticeti: Balaenopteridae) in Los Cocoteros Beach in Margarita Island, Venezuela, gave the chance of studying the interactions present in it. 33 injuriess were found in several points of rorqual tegument; oval or rounded in shape, like craters, from 5 to 7 cm long, 5 to 6 cm wide, and 3 to 5 cm deep. Most of them, were fresh. Wounds were attributed to the cookie cutter shark Isistius sp. (Elasmobranchii: Dalatiidae), given the remarkable correspondences. The present note constitutes the first known association between the cookie cutter shark and the fin whale in Venezuelan, Caribbean and western Atlantic waters.

The use of supercritical water as a coolant in nuclear reactors is a challenge for its design and operation, it is necessary to consider the strong dependence between the thermodynamic properties of supercritical water and the properties as moderator of neutrons. This paper presents a methodology based on a Monte-Carlo code for neutronic calculation and a computational fluid dynamics code for thermohydraulic calculation, with the aim of making the coupled neutronic-thermohydraulic analysis of a High Performance Light Water Reactorfuel assembly. Using the developed methodology, temperature profiles and power released in the fuel rods, the cladstemperature distribution and the temperature and water density profiles in the cooling and moderator zone were obtained. The results, accurately, describe the behavior of these parameters in the average fuel assembly.

El uso del agua supercrítica como refrigerante en los reactores nucleares es un reto para su diseño y operación, pues es necesario tener en cuenta la fuerte influencia de las propiedades termodinámicas del agua supercrítica enlas propiedades moderadoras de los neutrones. En este trabajo se desarrolló una metodología basada en un código de Monte-Carlo para el cálculo neutrónico y un código de dinámica de fluido computacional para el cálculo termohidráulico, con el objetivo de realizar el cálculo acoplado neutrónico-termohidráulico de un conjunto combustible de un reactor de agua supercrítica de alto desempeño. Empleando la metodología desarrollada fueron obtenidos los perfiles de temperatura y potencia liberada en las barras combustibles del conjunto, los de temperatura en la envoltura de los elementos combustibles y los perfiles de temperatura y densidad del agua en la zona refrigerante y en la zona moderadora del conjunto. Los resultados describen acertadamente el comportamiento de dichos parámetros en el conjunto combustible promedio.

Callinectes ornatus es un crustáceo decápodo ampliamente distribuido en el Atlántico centro - occidental, con un rol ecológico significativo y una creciente valoración socio - económica en las comunidades costeras. Hasta la fecha, existen pocos estudios sobre parásitos y simbiontes en esta especie, a pesar que tales investigaciones pueden brindar importante información sobre las relaciones ecológicas en que participa. En este estudio se propuso evaluar los fenómenos de parasitismo y epibiosis en ejemplares de C. ornatus. Cien especímenes fueron obtenidos con cordel cebado en aguas someras, traslada dos al laboratorio donde fueron sexados, medidos y revisados. Los parásitos y epibiontes obtenidos fueron fijados en formol al 10% y, en el caso de helmintos, adicionalmente fueron teñidos en acetocarmín, deshidratados con alcoholes y montados permanentemente en bálsamo de Canadá. El 89% de los hospedadores evaluados se asociaba a algún tipo de simbiosis, registrándose 4 . 024 simbiontes en total, correspondiendo a seis especies. Dos de ellas , los platelmintos Helicometrinanimia y Microphallus sp. eran parásitos , mientras que las otras cuatro fueron epibiontes: las algas clorofitas Ulva clathrata y U. fasciata, el molusco Crepidula margarita y el artrópodo Octolasmis lowei. Los platelmintos resultaron ser los asociados más significativos, con prevalencias de 76% y 43% e intensidades de 8,05 (1 - 32) y 78,07 (1 - 379), respectivamente. Se discuten algunas implicaciones ecológicas derivadas de las relaciones observadas, confirmándose la participación de Callinectes ornatus como basibionte para diversas asociaciones.

Callinectes ornatus is a decapod crustacean broadly distributed in western Atlantic, with a significant ecological role and a growing socioeconomic value for coastal communities. So far, there are few studies about para sites and symbionts in this species, despite that this research could offer important data about ecological relationships in which it participates. In this study , it was proposed to assess the parasitism and epibioses in C. ornatus . One hundred crabs were obtained by angling in shallow waters, moved to the laboratory, where they were sexed, measured and examined . The obtained p arasites and epibionts were fixed in 10% formalin and, in the case of helminths, were additionally stained with acetocarmine, dehydrated with alcohol and permanently mounted with Canada balsam. Eighty nine per cent of reviewed hosts were associated with some kind of symbiosis, a ccounting for a total of 4024 symbionts, belonging to six species. Two Platyhelminth es, Helicometrina nimia and Microphallus sp. were parasites, while the rest were epibionts: algae Ulva clathrata and U. fasciata , mollusc Crepidula margarita and arthropod Octolasmis lowei. Platyhelminthes were the most significant associate s , with prevale nces of 76% and 43% , and intensities of 8 . 05 (1 - 32) and 78 . 07 (1 - 379), respectively. Some ecological implications derived from observed relationships are discussed, confirming the participation of Callinectes ornatus as basibiont for several associations.

In this paper the progress in the conceptual design of a gas cooled pebble bed transmuter system was evaluated. This device allows highly efficient energy applications in cogeneration mode, both, for electricity power production and high temperature heat for hydrogen production. A particular feature of the system is subcritical operation mode, driven by a neutron source activated by an accelerator. This produces a significant advantage from the point of view of safety and operational flexibility in the operation of nuclear non-standard fuel types, allowing the possibility of reducing the amount of nuclear waste and also using them for high efficiency energy production. The possibilities of the system to transmute nuclear reactors spent fuel wastes into light water were evaluated

En el trabajo se evaluaron los avances en el diseño conceptual de un sistema transmutador de lecho de bolas refrigerado por gas. El dispositivo permite aplicaciones energéticas de alta eficiencia en modo de cogeneración, tanto para la producción de electricidad como calor de alta temperatura para la producción de hidrógeno. Una característica particular del sistema es su operación en modo subcrítico, manejado por una fuente de neutrones activada por un acelerador. Lo anterior produce una significativa ventaja desde el punto de vista de la seguridad y flexibilidad en la operación con tipos de combustible nuclear no tradicionales, lo que posibilita reducir las cantidades de residuos nucleares y además aprovecharlos para la producción de energía con una alta eficiencia. En el trabajo se evaluaron las posibilidades del sistema para trasmutar los desechos del combustible gastado de los reactores nucleares de agua ligera

Los Alpheidae son un grupo de camarones carideos caracterizados, entre otros aspectos, por presentar los ojos total o parcialmente cubiertos por el caparazón. En Venezuela esta familia está representada por los géneros Synalpheus, Mohocaris, Alpheus, Automate, Metalpheus, Salmoneus, Alpheopsis, Leptalpheus y Parabetaeus. Dos ejemplares de Salmoneus carvachoi fueron recolectados, usando una bomba de succión tipo yabby en la laguna de Punta de Piedras, Isla de Margarita, Venezuela. Estos ejemplares pueden ser diferenciados de otras especies del género Salmoneus principalmente por presentar la palma del quelipedo mayor deprimida ventralmente y por el largo de los dáctilos del tercer par de pereiópodos. Este hallazgo constituye el primer reporte de esta especie para Venezuela, ampliando de esta manera su distribución conocida para el Atlántico americano.

The Alpheidae is a group of caridean shrimps characterized, among other aspects, by the partial or total coverage of the eyes by the carapace. In Venezuela, this family is represented by the genera Synalpheus, Mohocaris, Alpheus, Automate, Metalpheus, Salmoneus, Alpheopsis, Leptalpheus and Parabetaeus. Two specimens of Salmoneous carvachoi were collected using a suction pump type yabby in the lagoon of Punta de Piedras, Margarita Island, Venezuela. These specimens mainly differ from other species of Salmoneus in the palm of the largest cheliped, which is ventrally depressed, and in the length of the dactyl of the third pair of pereiopods. This is the first report of this species for Venezuela, thus expanding the known distribution of this species to the American Atlantic.

This paper evaluates the malformation in the left third maxilliped of a specimen of the fiddler crab Uca rapax from Venezuela. There are some hypotheses and the cause of the malformation remains unknown, but the results are indicative that is most likely due to errors in morphogenetic processes.

O presente trabalho objetivou comparar o fluxo de calor sensível obtido pelo método do balanço de energia-razão de Bowen (H_B) e pelo método aerodinâmico (H_A), em uma área de 4 ha cultivada com feijão-caupi em Areia-PB (6º 58' 12" S e 35º 42' 15" O, 620 m). Foram coletados dados de saldo de radiação, fluxo de calor no solo, temperatura e umidade do solo, temperatura e umidade relativa do ar, velocidade do vento e precipitação pluvial, os quais eram lidos a cada minuto, e armazenados, em uma central de aquisição de dados, como médias a cada 30 min, com exceção da pluviometria, cujo valor foi totalizado no período. Obteve-se excelente concordância entre H_A e H_B, com um índice "d " de 0,980, um erro padrão (EP) de 14,88 W m-2, e sem diferença significativa entre H_A e H_B, pelo teste t-Student. Deste modo, o método aerodinâmico pode ser usado em conjunto com medidas de saldo de radiação e de fluxo de calor no solo, para se estimar o fluxo de calor latente e, consequentemente, a evapotranspiração da cultura do feijão-caupi, para as condições edafoclimáticas do Brejo Paraibano.

A study was performed to compare the bulk aerodynamic (H_A) and Bowen ratio energy balance (H_B) methods in the estimation of the sensible heat flux in a cowpea crop. Data of net radiation, soil heat flux, soil water content, soil temperature, air temperature, relative humidity, wind speed and rainfall were collected on 30-min time intervals in an area of 4 ha belonging to the municipality of Areia, PB (6º 58' 12" S e 35º 42' 15" W, 620 m). Results showed that there was a good agreement between H_A and H_B with an index "d" of 0.98 and standard error of estimate (SEE) of 14.88 W m-2, no significant difference between H_A H_B, by the t-Student test. Thus, the bulk aerodynamic method can be used in conjunction with measurements of net radiation and soil heat flux to estimate the evapotranspiration of the cowpea under soil and climatic condition of the "Brejo Paraibano".

Objetivou-se determinar os componentes do balanço de energia (saldo de radiação, fluxos de calor latente, sensível e no solo), a evapotranspiração (ET) e a eficiência no uso de água (EUA) do feijão caupi cultivado sob condições de sequeiro. O experimento foi conduzido numa área de quatro hectares, localizada no CCA/UFPB, Areia, PB (6º58'12" S e 35º42'15" O e 620 m), durante o período de 22/07/2003 a 17/10/2003. Para a determinação dos componentes do balanço de energia e da ET utilizou-se o método da razão de Bowen, sendo que para isso foi instalada, no centro da área, uma torre micrometeorológica com sensores para medição da temperatura e da umidade relativa, em dois níveis acima do dossel do caupi, além de sensores para a medição do saldo de radiação, da radiação solar global, do fluxo de calor no solo e da precipitação pluvial. Verificou-se que o valor médio da razão saldo de radiação/radiação global (Rn/Rg) foi de 79%, sendo a Rn utilizada, em média, como 65% no fluxo de calor latente (LE/Rn), 23% como fluxo de calor sensível (H/Rn) e 12% como fluxo de calor no solo (G/Rn). Em relação à evapotranspiração, observou-se que o valor total durante o período experimental foi 330,7 mm e o médio de 3,8 mm dia-1. A produção do caupi foi de apenas 206,0 kg ha-1, com uma EUA baixa (0,06 kg m-3), a qual se deu, provavelmente, devido ao déficit hídrico ocorrido na fase reprodutiva.

The objective of this study was to assess the energy balance components (net radiation, latent heat flux, sensible heat flux and soil heat flux), evapotranspiration (ET) and water use efficiency (WUE) of cowpea grown under rainfed conditions. The experiment was conducted in a 4 ha area in the CCA, UFPB, belonging to the Municipality of Areia, PB (6º58' S, 35º41' W and 620 m) during the period from July, 22 2003 to October, 17 2003. To determine the energy balance components and ET, it was used the Bowen ratio method, and for that, the area was instrumented with a micrometeorological tower containing sensors for measuring air temperature and relative humidity at two levels above the canopy of cowpea. Measurements of net and global radiation, soil heat flux and rainfall were also made. The average value of the net radiation was 79% of the global solar radiation (Rn/Rg), in which 65% appeared as latent heat flux (LE/Rn), 23% as sensible heat flux (H/Rn) and 12% as soil heat flux (G/Rn). The total and average values for actual evapotranspiration were 330.7 mm and 3.8 mm day-1, respectively. The production of cowpea was only 206.0 kg ha-1 with low WUE (0.06 kg m-3), which occurred probably due to water deficit at reproductive stage.

Hasta ahora, la subfamilia Pisinae Dana, 1851 estaba representada en las costas caribeñas de Venezuela por seis especies [Chorinus heros (Herbst, 1790); Libinia ferreirae Brito Capello, 1871; Herbstia depressa Stimpson, 1870; Sphenocarcinus corrosus A. Milne-Edwards, 1878; Pelia mutica (Gibbes, 1850) y Nibilia antilocapra (Stimpson, 1871)], que representan 38 % de los cangrejos de esta subfamilia señalados para el mar Caribe. Durante una revisión de material pendiente de identificar perteneciente a la colección de crustáceos del Laboratorio de Carcinología de la Universidad de Oriente, Isla de Margarita, Venezuela, fueron hallados nueve especímenes (seis machos y tres hembras) de Apiomithrax violaceus (A. Milne-Edwards, 1868). La distribución hasta ahora conocida de este Pisinae estaba circunscrita a Mauritania hasta Angola en el Atlántico oriental, Isla Ascensión en el Atlántico central, Brasil y el Delta del Orinoco en el Atlántico occidental. Todos los ejemplares fueron colectados en aguas marinas venezolanas en las siguientes localidades: Isla de Margarita: Playa Valdés, península de Macanao; Estado Sucre (área continental): Guayacán. Este es el registro más septentrional de la especie y la primera vez en ser señalada para el mar Caribe, incrementando a 17 el número de especies de Pisinae conocidas para esta área.

Up to now, the sub-family Pisinae Dana, 1851 was represented in the Caribbean coasts of Venezuela by six species [Chorinus heros (Herbst, 1790); Libinia ferreirae Brito Capello, 1871; Herbstia depressa Stimpson, 1870; Sphenocarcinus corrosus A. Milne-Edwards, 1878; Pelia mutica (Gibbes, 1850) and Nibilia antilocapra (Stimpson, 1871)], which make up 38 % of the Pisinae crabs reported for the Caribbean Sea. During an examination of unidentified material from the crustacean collection of the Laboratory of Carcinology at Universidad de Oriente, Margarita Island, Venezuela, nine specimens (six males and three females) of Apiomithrax violaceus (A. Milne-Edwards, 1868) were discovered. Until now the distribution of this Pisinae species was known to range from Mauritania to Angola in the eastern Atlantic, Ascension Island in the central Atlantic, as well as Brazil and Orinoco Delta in the western Atlantic. All specimens were collected in Venezuelan waters, at the following locations: Margarita island: Playa Valdés, Península de Macanao, Boca Chica, El Maguey; Sucre State (mainland): Guayacán. This is the most northerly record of the species and it is the first time to be reported for the Caribbean Sea, increasing the number of known species of Pisinae to 17 in this area.

Apesar das ascídias formarem uma parte conspícua das comunidades incrustantes no Caribe, nenhum inventário especializado foi realizado na Venezuela, com exceção de uma lista de 15 espécies registradas na Ilha Margarita (1984). Aqui apresentamos os resultados de um workshop de taxonomia realizado na Universidad de Oriente, Boca del Rio, Margarita Island em 20-25 de abril de 2009, como parte do programa NaGISA-Caribbean Sea program. O Parque Nacional La Restinga foi estudado e encontradas 29 espécies pertencendo a 19 gêneros e 10 famílias. As espécies coloniais mais abundantes foram Clavelina oblonga, Aplidium accarense, Polyclinum constellatum, Distaplia bermudensis, Symplegma rubra, S. brakenhielmi, Botrylloides nigrum e Ecteinascidia turbinata. Entre as espécies solitárias, Phallusia nigra, Ascidia curvata, Microcosmus exasperatus, Styela canopus, Styela sp.1 e Styela sp. 2 foram as mais abundantes. A diversidade de ascídias nesta laguna é uma das maiores neste tipo de habitat no Caribe e sete espécies representam novos registros para a Venezuela (Ascidia curvata, Ecteinascidia styeloides, Aplidium accarense, Distaplia stylifera, Trididemnum orbiculatum, Symplegma rubra, e S. brakenhielmi). Uma questão de preocupação para a conservação do Parque Nacional La Restinga é a presença de possíveis espécies exóticas, portanto algumas medidas de manejo são sugeridas.

Although ascidians form a conspicuous part of sessile assemblages in the Caribbean, no specialized inventories have been developed in Venezuela, except for a list of 15 species reported from Margarita Island (1984). Here we present the results of a taxonomic workshop held in the Universidad de Oriente, Boca del Rio, Margarita Island during April 20-25 of 2009, sponsored by the NaGISA-Caribbean Sea program. La Restinga National park was surveyed and we found 29 species belonging to 19 genera and 10 families. The most abundant colonial species were Clavelina oblonga, Aplidium accarense, Polyclinum constellatum, Distaplia bermudensis, Symplegma rubra, S. brakenhielmi, Botrylloides nigrum and Ecteinascidia turbinata. Among the solitary ascidians Phallusia nigra, Ascidia curvata, Microcosmus exasperatus, Styela canopus, Styela sp.1 and Styela sp. 2 were the most abundant. The ascidian diversity in this lagoon is one of the highest for similar habitats in the Caribbean and seven species are new registers for Venezuela (Ascidia curvata, Ecteinascidia styeloides, Aplidium accarense, Distaplia stylifera, Trididemnum orbiculatum, Symplegma rubra, and S. brakenhielmi). One point of concern for the conservation of la Restinga National Park is the presence of possible introduced species, and some management procedures are suggested.

Seven specimens of Nibilia antilocapra were collected in Margarita Island, Venezuela. This is the first record of N. antilocapra for Venezuela, and for the south Caribbean area. Nibilia antilocapra can be separated from other species of the family Epialtidae by the following features: wide postorbital tooth forming a cup, supraocular eave and postocular cup well separated, with a small tooth between them. Carapace pyriform, longer than wide, with several spines of different size on the surface. Chelipeds stouter than the walking leg, the formers diminish gradually in size. Four species of the subfamily Pisinae have been recorded for Venezuela marine waters.

The present work shows the relationship of the transport of heat and mass (double) in a rectangular cavity caused by a forced and natural convection. The mathematical model consists of the Navier-Stokes equations to describe the incompressible laminar flow. The transport of heat and mass are modelled through two second order no-linear differential equations, incorporating in linear way the effects of gradients of concentrations and temperature. The mathematical problems is solved numerically through the Finite Volumes Method, in curvilinear coordinated and co-located variables, representing the diffusion through central difference and using a potential schemes for the convection terms. Original results of flow models are shown: Isotherms, isoconcentrations and numbers of Nusselt and Sherwood in characteristic regions for the mixed internal flow problem with heat and mass are shown.

El presente trabajo muestra resultados de transporte de calor y masa (Doble) al interior de una cavidad rectangular ocasionado por un flujo convectivo forzado y natural (Mixto). El modelo matemático consta de las ecuaciones de Navier-Stokes para describir el flujo laminar de un fluido incompresible. Además es modelado el transporte de calor y masa a través de dos ecuaciones diferenciales lineales de segunda orden, incorporando en forma lineal los efectos de los gradientes de concentración y de temperaturas. El modelo matemático es resuelto numéricamente a través del Método de Volúmenes Finitos descrito en coordenadas curvilíneas y variables colocalizadas, representando los términos difusivos a través de diferencia central y usando un esquema potencial para los términos convectivos. Se muestran resultados originales de patrones de flujo: Isotermas, isoconcentraciones y números de Nusselt y de Sherwood en regiones características para el problema de flujo interno mixto con difusión de calor y masa.

The present work is related to the simulation of hot gases inside a tubular combustion chamber. This way, meshes are generated in tubular curvilinear domains. The fuel injection is carried out through a spherical body positioned in the chamber symmetry axis, affected by an axial primary flow and a radial secondary flow. The fluid is considered Newtonian incompressible, with constant thermo physics properties. In regard to the fluid flow, this is considered laminar, modeled through Navier-Stokes Equations. The Shvab-Zel'dovich formulation is used to model energy and species transport through a variable denominated Linkage Potential. The mathematical model is solved numerically through the Finite Volumes Method in a curvilinear coordinated system, with co-located variable arrangement. Centered differences and WUDS schemes are used to represent the diffusion in convective terms. The temporary integration is of the implicit type. Results of fluid flow fields, temperatures and concentrations are shown and compared with specialized literature data. Conclusions are drawn from quality and quantitative results according to the available data, particularly, regarding flame shape.

El presente trabajo dice relación con la simulación de gases calientes al interior de una cámara de tubular combustión. Siendo así, se generan mallas en dominios tubulares curvilíneos. La inyección de combustible es realizada a través de un cuerpo esférico posicionado en el eje de simetría de la cámara afectado por un flujo primario axial y un flujo secundario radial. El fluido es considerado Newtoniano incompresible y con propiedades termo físicas constantes, en cuanto el flujo es considerado laminar, modelado a través de la ecuaciones de Navier-Stokes. La formulación de Shvab-Zel'dovich es utilizada para modelar el transporte de energía y especies a través de una variable denominada Potencial de Acoplamiento. El modelo matemático es resuelto numéricamente a través del Método de los Volúmenes Finitos descrito en coordenadas curvilíneas con arreglo co-localizado de variables. Los términos difusivos son representados por diferencias centradas y se usa el esquema WUDS para los términos convectivos. La integración temporal es del tipo implícito. Resultados de campos de velocidades, temperaturas y concentraciones son mostrados y comparados con datos encontrados en la literatura especializada. Se concluye en cuanto a la calidad cualitativa y cuantitativa de los resultados generados y en particular en lo que dice relación con la forma de la llama.