对六种内螺旋肋管进行了流动与传热的实验研究,实验管内径为16.25～16.69 mm,内螺旋肋高为0.28～0.44mm,螺旋肋牙数为40～45,螺旋角为43°～45°.研究表明,内螺旋肋管可以有效地强化传热,本文所研究的管型的传热强化倍率为1.67～2.99.比较了两种评价内螺旋肋管性能的方法.用Webb模型及Ravigururajan模型对内螺旋肋管进行了性能预测并与实验值进行了比较.两个模型的预测值与本试验结果有较大偏差,相对而言,传热模型稍优.
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