CFD analysis of wind environment around a human body

Murakami, Shuzo; Zeng, Jie; Hayashi, Tatsuya

doi:10.1016/s0167-6105(99)00088-4

Cited by 54 publications

(42 citation statements)

References 3 publications

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“…Numerical techniques have been successfully used to describe the thermal interaction between the human body and its surrounding environment [1,2,3,4]. However, most of these studies were undertaken with reference to adults whose physical shape, thermo-physiological properties and thermoregulatory processes are different from those of infants [5,6,7].…”

Section: Introductionmentioning

confidence: 99%

A combined study of heat and mass transfer in an infant incubator with an overhead screen

Ginalski

Nowak

Wrobel

2007

Medical Engineering & Physics

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The main objective of this study is to investigate the major physical processes taking place inside an infant incubator, before and after modifications have been made to its interior chamber. The modification involves the addition of an overhead screen to decrease radiation heat losses from the infant placed inside the incubator. The present study investigates the effect of these modifications on the convective heat flux from the infant's body to the surrounding environment inside the incubator. A combined analysis of airflow and heat transfer due to conduction, convection, radiation and evaporation has been performed, in order to calculate the temperature and velocity fields inside the incubator before and after the design modification. Due to the geometrical complexity of the model, Computer-Aided Design (CAD) applications were used to generate a computer-based model. All numerical calculations have been performed using the commercial Computational Fluid Dynamics (CFD) package FLUENT, together with in-house routines used for managing purposes and User-Defined Functions (UDFs) which extend the basic solver capabilities. Numerical calculations have been performed for three different air inlet temperatures: 32, 34 and 36ºC. The study shows a decrease of the radiative and convective heat losses when the overhead screen is present. The results obtained were numerically verified as well as compared with results available in the literature from investigations of dry heat losses from infant manikins.

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Section: Introductionmentioning

confidence: 99%

A combined study of heat and mass transfer in an infant incubator with an overhead screen

Ginalski

Nowak

Wrobel

2007

Medical Engineering & Physics

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“…On the other hand, the significant differences in several points in section A, such as No. 1, 10 and 11, and points 16,17,18,21 at the edge of the tower-shaped building are mainly induced by the complex flow field and great gradient of velocity and pressure perturbation. The error may also come from the relatively rough gird interval and the discrepancy of the marked point locations between simulation and physical test.…”

Section: The North Approaching Flowmentioning

confidence: 99%

“…CFD softwares have been widely used to provide accurate flow structure, wind load and wind pressure distribution around the buildings [16] . So that, it can provide not only scientific assessment of pedestrian wind environment [6] , but also the micro-scale atmospheric environment around human body and the flow fields in all scales [17,18] . CFD has also played important roles on the urban environment because of accurate simulation for pollutant dispersions inside the buildings [19] and simulation of fire's effects in urban areas [20] .…”

Section: Introductionmentioning

confidence: 99%

Wind flow and wind loads on the surface of a towershaped building: Numerical simulations and wind tunnel experiment

Jiang

Liu

Zhang

et al. 2008

Sci. China Ser. D-Earth Sci.

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Flow structure and wind pressure distribution caused by obtuse obstacles are usually the focuses in Computational Wind Engineer researches (CWE). By solving the non-hydrostatical dynamic equations, PUMA model (Peking University Model of Atmospheric Environment) was developed and applied to simulating the flow structure and wind pressure distribution around a tower-shaped building. Evaluation about the wind environment and wind loads around the building was obtained through the analysis of the numerical simulation results and wind tunnel data. Comparisons between the simulation and wind tunnel study indicate that numerical simulation results agree well in the flow field and wind pressure distribution around the tower-shaped building. On the other hand, the horizontal grid interval of 2 m and the vertical grid of 3 m were still too crude to simulate the flow structure and wind pressure distribution on the building surface more exactly in detail; and the absence of suitable pressure perturbation parameterization scheme between the solid and the adjacent space also limits the accuracy of the numerical simulation. The numerical simulation model can be used to evaluate the wind environment and wind load around high buildings.tower-shaped building, wind load, wind pressure coefficient, non-hydrostatical numerical simulation model

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“…The main advantage of a CFD model is the capability of examining the real system in three dimensions. A validated CFD model can support design, research and development, optimization, scale up or other complex engineering tasks, such as polymerization, crystallization operations; multiphase reactors and oil industry problems [3,10,11] Besides the chemical engineering applications there are studies showing CFD can be used for example in the field of aerodynamics [5,13] and human sciences too [15].…”

Section: Introductionmentioning

confidence: 99%

Examination of temperature probe setup using computational fluid dynamics simulators

Egedy

Varga

Chován

2012

Per. Pol. Chem. Eng.

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CFD analysis of wind environment around a human body

Cited by 54 publications

References 3 publications

A combined study of heat and mass transfer in an infant incubator with an overhead screen

A combined study of heat and mass transfer in an infant incubator with an overhead screen

Wind flow and wind loads on the surface of a towershaped building: Numerical simulations and wind tunnel experiment

Examination of temperature probe setup using computational fluid dynamics simulators

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