Contrastive Research about Fluid-thermal Coupling of Carbon-phenolic Jet Vane in Terms of Two Different Numerical Models

Abstract

A numerical research on two-dimensional unsteady fluid-thermal coupling of carbon-phenolic jet vane was done through using secondary development by UDF. The main attention is on differences of surface temperature based on two models. The results show that, the highest temperature is always on stagnation point near by the leading edge of jet vane. Temperature of side face will decrease along the main flow direction. In jet vane coordinate system, at the same main flow position, temperature on upwind side is higher than leeward side, and the differences will become greater along the main flow direction. The escaping process of pyrolysis gas and chemical reaction on surface are in favor of reducing surface temperature. And two different numerical models can be used in study of jet vane made of charring materials on different attentions.