CAJ | 학술논문

在多种倾斜角度下,对封闭腔内液体进行了数值模拟。重点分析了Ra数变化和倾斜角度对对流传热的影响。研究表明：随着Ra数的增大,换热由热传导为主转化为对流换热为主;倾斜角度对Nu数的变化影响很大,并且当倾斜角度处于90o～135o时,Nu数可以达到最大值。
재다충경사각도하,대봉폐강내액체진행료수치모의。중점분석료Ra수변화화경사각도대대류전열적영향。연구표명：수착Ra수적증대,환열유열전도위주전화위대류환열위주;경사각도대Nu수적변화영향흔대,병차당경사각도처우90o～135o시,Nu수가이체도최대치。
Inclination angle on natural convection heat transfer and fluid flow in a two-dimensional enclosure filled with fluid has been analyzed numerically.The effect of the Rayleigh number on and the change of inclination were investigated.The results indicate that with the increasing Rayleigh number,the heat conduction in the heat transfer mechanism is transformed into convective heat transfer primarily.The inclination angle has a great effect on the Nusselt number.And when angle is at 90DHS-150DHS,the Nusselt number can reach the maximum.