本文从流体流动和传热的角度,对二维平行平板通道中空气绕流三角形钝体的流场进行了数值预测和相应的实验验证。湍流的时均值方程组用k-ε模型封闭,并经流函数-旋涡度变换后用有限差分法进行数值求解,在对流场壁面边界的处理上采取了更为简便的近似办法。 In this paper, numerical simulation and experimental verification of the flow field of the triangular flow around the flow in a two-dimensional parallel plate channel from the perspective of fluid flow and heat transfer are carried out. The time-averaged equations of turbulence are closed by k-ε model and are solved numerically by finite difference method after flow function-vortex transformation. A more convenient approximation method is adopted to deal with boundary of flow field.