Amplitude Effect on the Resonance of Natural Convection inside a Square Cavity with a Vibrating Bottom Wall

사각 공동구의 하부 벽면 가진의 진폭 변화에 따른 자연 대류 유동의 공진 현상에 관한 연구

In the present study a numerical simulation is performed on a natural convection inside a square cavity with a vibrating bottom wall. The heat transfer coeffcients for various amplitudes of the bottom wall vibration were compared to the case without the bottom wall excitation. From the results, it is seen that the local temperature distribution in a cavity becomes more uniform as the amplitude of the bottom wall vibration is increased. Also, it was seen that the heat transfer coefficient increased on the heating wall as the applied amplitude increased.