| 重力水平对热毛细-浮力对流耗散结构的影响 |
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| 引用本文： | 李友荣,莫东鸣,彭岚,石万元.重力水平对热毛细-浮力对流耗散结构的影响[J].工程热物理学报,2011(8):1269-1272. |
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| 作者姓名： | 李友荣 莫东鸣 彭岚 石万元 |
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| 作者单位： | 重庆大学动力工程学院;低品位能源利用技术及系统教育部重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(No.50776102); 中央高校基本科研业务费资助项目(No.CDJXS10142224); 重庆大学“211工程”三期创新人才培养计划建设项目(No.S-09101) |
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| 摘 要： | 为了了解重力水平对环形液池内热毛细-浮力对流耗散结构的影响，利用有限容积法进行了非稳态三维数值模拟，环形液池外壁被加热，内壁被冷却，流体为0．65cSt硅油，其Pr数为6．7。结果表明，在微重力条件下，流动为三维振荡流动；当重力水平增加到0．1go时，流动结构转化为沿周向运动的一组滚胞，其轴线与温度梯度方向一致；当重力...
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| 关 键 词： | 数值模拟 流型 热毛细-浮力对流 环形液池 |
Effect of Gravity Level on Flow Pattern of Thermocapillary-Buoyant Convection |
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| LI You-Rong MO Dong-Ming PENG Lan SHI Wan-Yuan.Effect of Gravity Level on Flow Pattern of Thermocapillary-Buoyant Convection[J].Journal of Engineering Thermophysics,2011(8):1269-1272. |
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| Authors: | LI You-Rong MO Dong-Ming PENG Lan SHI Wan-Yuan |
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| Institution: | LI You-Rong~(1,2) MO Dong-Ming~1 PENG Lan~(1,2) SHI Wan-Yuan~(1,2) (1.College of Power Engineering,Chongqing University,Chongqing 400044,China,2.Key Laboratory of Low-Grade Energy Utilization Technologies and Systems,Ministry of Education,China) |
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| Abstract: | In order to understand the effect of gravity level on the flow pattern of thermocapillary-buoyant convection in an annular pool,a series of unsteady three-dimensional numerical simulations were carried out with finite-volume method.The pool was filled with the 0.65cSt silicone oil(Prandtl number Pr=6.7),and heated from the outer cylindrical wall and cooled at the inner wall.The simulation results show that the three-dimensional oscillatory flow appeared at micro-gravity.When g=0.1g_0,the flow pattern transi... |
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| Keywords: | numerical simulation flow pattern thermocapillary-buoyant convection annular pool |
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