Web主要结果如下: (1)对方腔对流和Rayleigh-Benard对流,计算了不同网格分辨率下的速度场、压力场和温度场的整体误差范数。 结果表明,当网格数增加时,所有物理场的误差 … WebOct 15, 2024 · The multi-phase Rayleigh–Bènard convection has been weakly investigated, even though it plays a leading role in the theoretical and applied physics of the heat transfer enhancement. For the case of moderate turbulent convection, a rather unexpected result is an unusual kind of wind reversal, in the sense that the fluid is found to be strongly …
Rayleigh Benard对流.ppt_点石文库
WebOct 31, 2015 · 1916年,Rayleigh在理论上进行了描述。Rayleigh-Bénard对流亦存在层流、流动稳定性等问题及层流向湍流的转捩、湍流对流等状态。其判别流动状态的参数是Ra。在对Rayleigh-Bénard实验研究中,产生了很多有价值科学成果,但是很少有关于Bénard现象对初值的敏感度的研究。 WebMar 22, 2013 · 13、利用格子Boltzmann方法数值模拟Rayleigh-Benard对流.力学季刊,2010,31(2), 徐鹤林,马建敏. 14、两个等径蛋白质气泡在Bingham 流体中振动特性. 物理学报, 2010, 59(1),王海民马建敏张文(SCI:551OO) 15、vibration of a single protein bubble in bingham liquid. react rally
热对流的格子Boltzmann模拟研究 - CNKI
Web控制方程:x和y的稳态动量,连续性,能量方程方程相对于Pr和Ra数是无量纲的。有关等式的详细说明,请参阅“Ouertatani等人,封闭环境中二维Rayleigh-Bénard对流的数值模拟。CRMecanique336(2008)”。最终结果也针对本文进行了验证。边界条件(二维正方形):u=v=0在所有四个边无量纲温度=顶部-0.5,底部 ... WebIn this study; the Rayleigh–Bénard convection model was established; and a great number of Bénard cells with different numbered vortexes were acquired by numerical simulation. Additionally; the Bénard cell with two vortexes; which appeared in the steady Bénard fluid with a different Rayleigh number (abbreviated Ra); was found to display the primary … Web朱旭 张义招 周全 孙超. 【摘要】: 粗糙壁面湍流广泛存在于自然界和工程技术等诸多领域,对其深入研究具有重要的理论价值和现实意义,既可以帮助揭示湍流边界层中的结构生成和 … react raman