本文运用FLUENT软件对横掠蛋形和椭圆管束的换热进行二维数值模拟,并与圆管管束的挟热进行对比.通过改变椭圆管束与蛋形管束的节径比(S/2b)和长短轴比(a/b),得到两种管束的的换热规律,为强化管束换热提供参考.%The heat transfer of two dimensional elliptic and egg-shaped tube bundles was studied using FLUNET program, and the comparison of heat transfer coefficient of circular, elliptic and egg-shaped tube bundles was carried out. The heat transfer rules of the two tube bundles were obtained by means of changing the dimensionless spacing between rows and tubes (S/2b) as well as the ratio of larger and smaller ellipse semi-axis (a/b) of the elliptic and egg-shaped tube.
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