中文摘要：

用DLR型κ-ε紊流模型·BFC（边界拟合曲线坐标变换）法，对总扩散角为8。，扩散度为4的锥形渐扩管内充分发展的不可压缩粘性紊流进行数值仿真。通过对数值仿真结果和实验数据的比较分析，得出该种紊流流动的近壁特性。

英文摘要：

Fully developed incompressible turbulent flow in a conical diffuser with a total divergence of 8° and an area ratio of 4 has been numerical simulated by a DLR κ-ε turbulence model and its BFC （Boundary Fit Coordinates） method. The turbulence Characterisics near the wall have been gotten according to the comparison of numerical simulation results with experimental data.