【摘要】 在矩形管道底面设置突起半圆柱列，可增强正对底面的传热面附近流体的湍动，表面更新作用得到加强，从而强化流体与传热面间的传热。更多还原

【Abstract】 The turbulence of flow on the lower wail of the opposite side and the surface renewal action are increased when the protrusions of semi-circular cylinders are installed on the lower wall of rectangular duct. The result is that the heat transfer is enhanced between the flow fluid and the whole heat transfer wall.更多还原