欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
对充满多孔介质的倾斜方腔，在其上下壁面绝热、右侧壁面维持恒温％及左侧壁面温度基于R随时间按正弦规律变化的情况下，采用Brinkman扩展达西模型和SIMPLER算法对方腔内的自然对流与换热进行了非稳态数值模拟，方腔倾角α的范围为0°～90°，Pr数为1，Ra数为10^6．计算研究不同的振荡频率和方腔倾角对方腔内对流换热的影响．数值模拟结果表明：振荡频率f为60π，方腔倾角为43°时，方腔内的换热最强．
英文摘要：
Unsteady natural convection heat transfer of incompressible fluid in an inclined cavity filled with saturated porous medium is studied numerically. The temperature of the cold sidewall maintains constant and the temperature of the opposite sidewall varies sinusoidally with time. The Brinkman-extended Darcy model and SIMPLER algorithm are adopted. Comprehensive numerical solutions are acquired at a fixed Prandtl number Pr = 1 and a Rayleigh number Ra = 10^6 . The inclination angle of the enclosure a varies from 0° to 90°. The effects of a and dimensionless oscillation frequency f on the natural convection are analyzed. The maximum heat transfer is reached at f = 607 and α = 43°.
同期刊论文项目
同项目期刊论文
期刊信息
位置：