Non-Darcy free convection in a thermally stratified porous medium along a vertical plate with variable heat flux
Non-Darcy free convection in a thermally stratified porous medium along a vertical plate with variable heat flux
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热分层多孔介质中沿具有可变热通量的垂直板的非达西自由对流
DOI：
10.1007/s002310050166
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发表时间：
1997
影响因子：
2.2
通讯作者：
C.
中科院分区：
文献类型：
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作者：
C. Hung;C.
分析了在热分层饱和多孔介质中沿不透水垂直板的自由对流问题。壁面热流以幂律形式变化。本文考虑了非达西效应，如固界粘性阻力、大流量惯性力、近壁不均匀孔隙度分布和热分散等。由于近壁区孔隙率的变化，滞热系数也随之变化。用凯勒盒法求解变换后的非相似方程组。结果表明，热分层效应和指数值越高，局部努塞尔数越高。非达西和热色散效应也显著影响速度和温度分布以及局部努塞尔数。
Free convection along an impermeable vertical plate embedded in a thermally stratified, fluid-saturated porous medium is analyzed. The wall heat flux is varied in a power-law form. The non-Darcian effects, such as solid-boundary viscous resistances, high-flow-rate inertia forces, near wall nonuniform porosity distribution and thermal dispersion, have been considered in the present study. Due to the variation of porosity in the near wall region, the stagnant thermal conductivity also varies accordingly. The nonsimilar system of transformed equations is solved with Keller's Box method. It is shown that the thermal stratification effect and the higher value of the exponentmcan increase the local Nusselt number. Also the non-Darcian and thermal dispersion effects significantly influence the velocity and temperature profiles and local Nusselt number.
流式细胞术分析胃癌患者腹腔内免疫细胞
DOI：
--
发表时间：
2022
期刊：
影响因子：
--
作者：
髙橋和也;大澤英之;金丸理人;倉科憲太郎;齋藤心;山口博紀;細谷好則;北山丈二,佐田尚宏
通讯作者：
北山丈二,佐田尚宏