纵弯复合超声振动雾化冷却系统强化换热模拟研究

Study on the Heat Transfer Enhancement of Longitudinal Bending Composite Ultrasonic Vibration Atomization Cooling System

纵弯复合振动超声雾化冷却系统利用超声振动的能量使冷却介质雾化,并加注到热源表面进行强化换热。汽雾介质从雾化喷头喷射出去后,一直受到超声声场的作用,因此与直接射流冷却的换热效果会不同。对雾化冷却系统进行稳态及瞬态换热模拟,分析其换热能力。研究表明纵弯复合振动超声雾化冷却系统具有较强的换热能力。

The longitudinal bending vibration ultrasonic cooling system by ultrasonic energy to the cooling medium and add to the heat of atomization,the surface of the heat transfer medium. Steam ejected from the atomizing nozzle,has been subjected to ultrasonic field effect,and thus the heat transfer effect of direct jet cooling will be different. The steady and transient heat transfer simulation the spray cooling system,analysis of the heat capacity.The results show that the longitudinal flexural vibration ultrasonic atomization cooling system has stronger ability of heat transfer.