Calculations and experiments are performed for an annular channel, consistingof a finned inner tube and a smooth outer tube, with the aid of a special deve-loped computer code CONDU.

• 计算分析和试验都是针对环形流道进行的。流道内侧为肋化管,外侧为光滑管。为进行计算分析,专门发展了二维计算程序“CONDU”。