In order to study the influence of underwear on human thermal and moisture
comfort in different sports conditions, the objective and subjective
evaluation of underwear (including undershirt and underpants) made of three
kinds of fabrics were carried out, and the underwear comfort model was
established by computational fluid dynamics, and the application prospect of
computational fluid dynamics technology in the field of clothing comfort
research was prospected. The results show: 1. the underwear combination of
different fabrics has certain influence on the thermal and moisture comfort
of human body, and the thermal and moisture of fabric of composite fiber is
better than that of fabric of single fiber; 2. the temperature and humidity
of chest, back, hip and thighs of the human body in different motion states
change, and the temperature and humidity of the chest and back change
greatly; 3. computational fluid dynamics can accurately predict human skin
temperature.