Cfd
Mostrando 1-12 de 336 artigos, teses e dissertações.
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1. Molecular signature of immunological mechanism behind impaired endometrial receptivity in polycystic ovarian syndrome
ABSTRACT Objective: Despite the treatment of anovulation, infertility is still one of the main complications in PCOS women during reproductive age, which appears to be mainly due to impaired uterine receptivity. This study investigated the transcriptome profiles of endometrium in PCOS patients and healthy fertile individuals as the control group. Material
Archives of Endocrinology and Metabolism. Publicado em: 2022
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2. Steel desulfurization on RH degasser: physical and mathematical modeling
Abstract Due to the high-quality steel demand, especially for ultra-low Sulfur steel, RH desulfurization has been practiced. Based on this, mathematical and physical modeling have been applied to study steel desulfurization by reagent addition in the RH degasser vacuum chamber. The main result of cold modeling, using water and oil emulating steel and slag, r
REM - International Engineering Journal. Publicado em: 2022
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3. Ventilação natural na reabilitação de edifícios de escritórios em contexto urbano denso e clima quente e úmido
Resumo Estudos recentes evidenciam que soluções arquitetônicas simples e não invasivas possibilitam recuperar o potencial de ventilação natural na reabilitação de edifícios em clima temperado. No entanto, a eficiência destas soluções em meios urbanos densos e clima quente e úmido ainda não foi investigada. Este artigo objetiva avaliar os benef�
Ambient. constr.. Publicado em: 2021-04
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4. Modelagem da vegetação aquática em estudos de dinâmica dos fluidos computacional
RESUMO O objetivo deste trabalho foi apresentar, por meio da técnica dinâmica dos fluidos computacional (CFD), dois métodos utilizados nas representações conceitual e física da vegetação em meio aquático: meio poroso e elementos geométricos simplificados. Três estudos de caso, que incluem um wetland flutuante e manchas de vegetação, exemplificam
Eng. Sanit. Ambient.. Publicado em: 2021-02
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5. 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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6. Comparação numérico-experimental de ventiladores radiais aplicados em transporte pneumático de adubadores agrícolas
RESUMO Este estudo apresenta um comparativo numérico-experimental de dois tipos de rotores radiais utilizados em um sistema de adubação agrícola a uma rotação de 4000 rpm. Para validação da análise numérica realizaram-se experimentos em uma bancada de testes utilizando um anemômetro de fio quente para as medidas de velocidade e um tubo de Pitot pa
Rev. bras. eng. agríc. ambient.. Publicado em: 2021-01
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7. Physical and mathematical modeling of inclusion behavior in a tundish with gas curtain
Abstract Gas injection in the tundish has been considered as an alternative to optimizing inclusion removal from steels. In the present study, physical and mathematical modeling were used to investigate the effect of gas injection in the tundish on the inclusion removal efficiency. The physical model is a 1/3 reduced scale of an industrial two-strand tundish
REM, Int. Eng. J.. Publicado em: 2020-12
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8. 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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9. Conforto térmico em ambientes de internação hospitalar naturalmente ventilados
Resumo A ventilação natural pode ser utilizada em ambientes hospitalares com baixo risco de infecção, especialmente em regiões de clima quente e úmido, como é o caso da cidade de Florianópolis, SC. Embora existam evidências que comprovem a influência positiva da ventilação na recuperação de pacientes, a norma brasileira RDC 50 recomenda forteme
Ambient. constr.. Publicado em: 2020-06
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10. 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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11. 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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12. 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