Computational Fluid Dynamics Cfd
Mostrando 1-12 de 124 artigos, teses e dissertações.
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1. COMPUTATIONAL ANALYSIS OF LOAD VENTILATION IN BROILER TRANSPORT
ABSTRACT The characterization of ventilation during the transport of broiler chickens is essential for identifying and characterizing the potential problems of a convective heat flow and its effects on the welfare and the health and production conditions of the chickens. The objective of this study was to evaluate the ventilation patterns in two layout model
Eng. Agríc.. Publicado em: 2021-02
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2. Study using a CFD approach of the efficiency of a roof ventilation closure system in a multi-tunnel greenhouse for nighttime microclimate optimization
ABSTRACT The thermal efficiency of naturally ventilated greenhouses is limited due to the permanent exchange of air through the vents, especially during the night hours. The objective of the work consisted in evaluating a system of inflatable air ducts that close the roof vents during the night as a strategy to reduce the energy loss during these hours. For
Rev. Ceres. Publicado em: 2020-10
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3. APLICAÇÃO DA FLUIDODINÂMICA COMPUTACIONAL (CFD) E ANÁLISE DE ACELERANTES NA INVESTIGAÇÃO DE INCÊNDIO
Fire investigation is a complex activity that involves skill, technology, knowledge and science and aims to elucidate fire-related events such as cause, origin, propagation, phenomena, etc. Chemical analysis to verify the presence of foreign substances in that location, as well as the use of fire simulation software are efficient and economical ways to study
Quím. Nova. Publicado em: 2020-05
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4. STUDY OF PARAMETERS AFFECTING THE COALESCENCE OF DIMETHYL DISULFIDE DROPS IN A MEROX UNIT
Abstract This study focuses on the coalescence of dimethyl disulfide drops with the mother phase at a flat aqueous-organic interface between dimethyl disulfide and different sodium hydroxide solutions. Drop coalescence is an important part of the Merox process for regenerating the solvent. A digital high-frame rate camera was used for recording drops coalesc
Braz. J. Chem. Eng.. Publicado em: 13/01/2020
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5. A NEW COMPUTATIONAL FLUID DYNAMICS STUDY OF A LIQUID-LIQUID HYDROCYCLONE IN THE TWO PHASE CASE FOR SEPARATION OF OIL DROPLETS AND WATER
Abstract A liquid-liquid hydrocyclone, so-called de-oiling equipment, was investigated for separation of oil droplets and wastewater in an Iranian petroleum unit. To generate the geometry and the mesh of the hydrocyclone Gambit software was used. Afterwards, by taking advantage of the Euler-Lagrangian principle, the governing equations covering the motion of
Braz. J. Chem. Eng.. Publicado em: 13/01/2020
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6. Investigation of the effect of nozzle design on rheological bioprinting properties using computational fluid dynamics
ABSTRACT Bioprinting is the utilization of techniques derived from three-dimensional printing to generate complex biological structures which may replace natural tissues or organs. It employs high spatial resolution deposition of different cell types, growth factors and biomaterials. Those together form bioinks, which are the bioprinting inputs, analogously
Matéria (Rio J.). Publicado em: 16/09/2019
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7. Diagnosis and validation by computational fluid dynamics of poultry house with negative pressure ventilation
RESUMO A ventilação à pressão negativa em aviários vem sendo utilizada para viabilizar a correção de seus microclimas internos, sendo que pesquisas apontam para a distribuição heterogênea do ar ao longo dos galpões e inadequação das variáveis ambientais às faixas recomendadas para o conforto térmico de aves adultas, especialmente nas horas ma
Rev. bras. eng. agríc. ambient.. Publicado em: 09/09/2019
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8. Aperfeiçoamento de modelo de estimativa da eficiência de remoção de turbidez da água em floculadores tubulares helicoidais
RESUMO Estudos científicos têm demonstrado que os floculadores tubulares helicoidais (FTHs) têm alta eficiência na formação de flocos e baixo tempo de retenção hidráulica, quando comparados aos floculadores comumente usados em tratamento de água e esgoto. No entanto, sua aplicação prática é limitada, pois ainda existe demanda significativa por
Eng. Sanit. Ambient.. Publicado em: 12/08/2019
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9. Uma interface de controle para a Fluidodinâmica Computacional
Resumo Neste artigo apresentaremos uma proposta para a utilização da dinâmica de fluidos computacional sob uma perspectiva educacional, tendo como alvo as disciplinas de mecânica dos fluidos e fenômenos de transporte, nos períodos iniciais de cursos de Engenharia e Física. A importância da utilização da simulação na formação de base é amplamen
Rev. Bras. Ensino Fís.. Publicado em: 27/06/2019
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10. Modeling and hydraulic performance evaluation of a dripper device coupled to a branched water distribution network
Resumo A irrigação é responsável por aproximadamente 70% do consumo de água doce do mundo e é um dos principais fatores por trás da crescente escassez de água global. As técnicas e sistemas de irrigação são extremamente diferenciadas e complexas. Neste contexto, as ferramentas de dinâmica de fluidos computacional (CFD) ganham relevância, permit
Rev. Ambient. Água. Publicado em: 03/06/2019
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11. Diseño, simulación y análisis del proceso de extrusión de un perfil termoplástico en PVC rígido para optimizar el diseño de la matriz y los parámetros
ABSTRACT The objective of the present work was to verify and optimize the die design to manufacture a thermoplastic profile in rigid PVC using the simulation of the flow in the mentioned matrix through the use of Computational Fluid Dynamics (CFD) and through tests in extrusion, using an experimental calibrator, the required geometry and dimensions were obta
Matéria (Rio J.). Publicado em: 19/07/2018
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12. Convective recirculation effect on the selective non-catalytic reduction behavior in an industrial furnace
Abstract Selective non-catalytic reduction (SNCR) has become an important technique for reducing NOx emissions in industrial furnaces. The occurrence of convective recirculation can cause significant changes in SNCR performance. This paper presents the results of a study performed by Computational Fluid Dynamics (CFD) considering: (i) changes of initial NOX;
Braz. J. Chem. Eng.. Publicado em: 2017-10