Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical and experimental estimation of convective heat transfer coefficient of human body under strong forced convective flow
Abstract A human body may occasionally experience strong forced convective flow that exceeds 10m/s, such as walking in the vicinity of tall buildings with a strong wind blowing against, involving in a severe tropical storm or typhoon, climbing a mountain against strong wind, or in an industrial air-shower like system during purging treatment. The objective of this study is to investigate the convective heat transfer around the human body, especially in forced convective flow in the context of outdoor environment. Wind tunnel experiment was conducted with a thermal manikin covering a wide range of wind speeds from 1.08 to 12.67m/s. CFD simulation corresponding to the wind tunnel experimental setup was then carried out and its prediction accuracy was validated. Experimental results showed that the whole body convective heat transfer coefficient under a uniform velocity of 12.67m/s was 71W/m2/K and 76W/m2/K in case of facing the wind and crossing the wind direction, respectively.
Graphical abstract Display Omitted
Highlights We considered that the human body is exposed to strong forced convective flow. This research covered a large range of wind speeds from 1.08 to 12.67m/s. We conducted wind tunnel experiment and CFD simulation. Convective heat transfer coefficient α c of the human body was investigated.
Numerical and experimental estimation of convective heat transfer coefficient of human body under strong forced convective flow
Abstract A human body may occasionally experience strong forced convective flow that exceeds 10m/s, such as walking in the vicinity of tall buildings with a strong wind blowing against, involving in a severe tropical storm or typhoon, climbing a mountain against strong wind, or in an industrial air-shower like system during purging treatment. The objective of this study is to investigate the convective heat transfer around the human body, especially in forced convective flow in the context of outdoor environment. Wind tunnel experiment was conducted with a thermal manikin covering a wide range of wind speeds from 1.08 to 12.67m/s. CFD simulation corresponding to the wind tunnel experimental setup was then carried out and its prediction accuracy was validated. Experimental results showed that the whole body convective heat transfer coefficient under a uniform velocity of 12.67m/s was 71W/m2/K and 76W/m2/K in case of facing the wind and crossing the wind direction, respectively.
Graphical abstract Display Omitted
Highlights We considered that the human body is exposed to strong forced convective flow. This research covered a large range of wind speeds from 1.08 to 12.67m/s. We conducted wind tunnel experiment and CFD simulation. Convective heat transfer coefficient α c of the human body was investigated.
Numerical and experimental estimation of convective heat transfer coefficient of human body under strong forced convective flow
Li, Cong (Autor:in) / Ito, Kazuhide (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 126 ; 107-117
17.01.2014
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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