换热管外流动传热的数值模拟研究

Numerical simulation research of flow and heat transfer outside tube

针对光滑圆管、横纹管进行了管外壳侧"流动—传热"的数值模拟,进一步证明了数值模拟方法的可靠性。同时,对速度场、温度场等对换热管管外流动进行了微观分析,通过光滑圆管与横纹管的比较,发现横纹管的管外壳侧传热性能较光滑圆管有一定提高。

The present research focused on the ＂flow heat transfer＂ numerical sinmlations of outside round pipe and corrugate pipe, furthermore the reliability was also verified. At the same time, the microscopic analysis has been conducted from the velocity field, temperature field and so on. By the comparison of smooth round pipe and corrugate pipe, the shell side heat transfer enhancement of corrugated pipe was not so distinct.