سال انتشار: ۱۳۹۲
محل انتشار: کنفرانس ملی مهندسی مکانیک ایران
تعداد صفحات: ۱۰
نویسنده(ها):
Nima makouie – B.Sc. in mechanic engineering, Urmia University of Technology
azin asadi taheri – B.Sc. in mechanic engineering, Urmia University of Technology

چکیده:

The paper investigates the effect of heat transfer on spherical bubble growth in a semi infinite space. The study of bubble growth in heating or cooling systems is important such as in heat pipes or cooling of electronic devices. In this study, we have formulated a general bubble dynamics model.The velocity, density and pressure distributions for the gas inside a spherical bubble were obtained by analytically solving the continuity and momentum equations .Solving the energy equation for the gas inside the bubble yields the temperature distribution .The results show that liquid properties such as density, viscosity and temperature have an different effects on bubble behavior .Also, the gas properties such as gas conductivity influences the heat transfer between the bubble and the surrounding liquid, which finally influences the bubble growth amplitude