中文摘要：

为了了解系统旋转对热毛细对流的影响，采用阴影法观察了外半径R0=40mm、内半径R1=20mm、深度H=1mm、沿顺时针方向旋转的环形池内1cSt硅油热毛细对流的特征。测量了0～10r／min转速范围内发生热流体波的临界温差，观察了旋转对热流体波的影响，结果发现：当内外环间温差略低于临界温差时，靠近外环附近产生多圈同心圆环状静止波纹；超过临界温差后，静止液池内分布着两组沿周向传播方向相反的波纹；超过临界温差不远时热流体波的传播方向与液池的旋转方向相反，提高温差使其传播方向转变为与液池旋转方向相同；提高转速又使其传播方向转变为与液池旋转方向相反。

英文摘要：

The thermocapillary convection of silicone oil lcSt in a differentially heated shallow annular pool rotating along clockwise direction with inner radius R0 = 40 mm, outer radius Ri = 20 mm and depth H = 1 mm was investigated experimentally on-ground. The critical temperature differences ATe for the incipience of hydrothermal waves （HTW） as function of pool rotation rates from 0 to 10 r/min were measured. The characteristics of HTW in the rotating pools were observed by the shadowgraph method. When the temperature difference between the inner wall and the outer wall is slightly lower than the ATe, the steady multi cellular convection pattern occurs near the hot wall. When the temperature difference slightly exceeds the ATc, two groups of HTWs with opposite propagating direction coexist in the non-rotating pool. In the rotating pool, the HTW propagates in a direction opposite to that of pool rotation when the temperature difference is low whereas it propagates in a direction as same as that of pool rotation when the temperature difference is high. Increasing the rotation rate causes the HTW propagating in a direction opposite to that of pool rotation again.