Fluent在自然对流科学研究中的应用

1、Fluent在自然对流科学研究中的应用主要内容接触双圆管自然对流的应用2自然对流研究领域内的应用1Fluent 在自然对流科学研究领域内的应用 =0.60 +0.387161 +0.559Pr 916 827 1012Churchill and ChuMorgan = Cn0.6750.05810101021.020.1481021020.8500.1881021040.4800.2501041070.1250.3331071012水平长圆柱1 T.L. Bergman, A.S. Lavine, F.P. Incropera, et al., Fundamentals of Heat and

2、 Mass Transfer, Wiley,seventh edition, 2011.Fluent 在自然对流科学研究领域内的应用 = 2 + 0.589141 +0.469Pr916 49 =1241 35()341 T.L. Bergman, A.S. Lavine, F.P. Incropera, et al., Fundamentals of Heat and Mass Transfer, Wiley,seventh edition, 2011.球槽道LFluent 在自然对流科学研究领域内的应用半球、半圆柱全球、圆柱椭球、椭圆柱C. Sasmal, R. P. Chhabra, L

3、aminar free convection in power-law fluids from a heated hemisphere, J. Thermophysics Heat Transfer 28 (2014) 750-763.A.K. Tiwari, R.P. Chhabra, Laminar natural convection in power-law liquids from a heated semi-circularcylinder with its flat side oriented downward, Int. J. Heat Mass Transfer 58 (20

4、13) 553-567.A. Chandra, R.P. Chhabra, Laminar free convection from a horizontal semi-circular cylinder to power- law fluids, Int. J. Heat Mass Transfer 55 (2012) 2934-2944.A. Prhashanna, R.P. Chhabra, Free convection in power-law fluids from a heated sphere, Chem. Eng. Sci. 65 (2010) 6190-6205.Prhas

5、hanna, R.P. Chhabra, Laminar natural convection from a horizontal cylinder in power-law fluids, Ind. Eng. Chem. Res. 50 (2011) 2424-2440.A.K. Gupta, C. Sasmal, M. Sairamu, R.P. Chhabra, Laminar and steady free convection in power-law fluids from a heated spheroidal particle: A numerical study, Int.

6、J. Heat Mass Transfer 75 (2014) 592-609.C. Sasmal, R.P. Chhabra, Effect of aspect ratio on natural convection in power-law liquids from a heated horizontal elliptic cylinder, Int. J. Heat Mass Transfer 55 (2012) 4886-4899.Fluent 在自然对流科学研究领域内的应用6 Prhashanna, R.P. Chhabra, Laminar natural convection f

7、rom a horizontal cylinder in power-law fluids, Ind. Eng. Chem. Res. 50 (2011) 2424-2440.Fluent 在自然对流科学研究领域内的应用Schematic representation of the flow and computational domainR. Shyam, C. Sasmal, R.P. Chhabra, Natural convection heat transfer from two vertically aligned circularcylinders in power-law fl

8、uids, Int. J. Heat Mass Transfer 64 (2013) 1127-1152.O. Laguerre, S.B. Amara, G. Alvarez, D. Flick, Transient heat transfer by free convection in a packed bed of spheres: Comparison between two modelling approaches and experimental results, Appl. Therm. Eng. 28 (2008) 1424.Fluent 在自然对流科学研究领域内的应用Comp

9、utational domain and dimensionsRadial heat sink with a circular base and rectangular fins.11 S.H. Yu, K.S. Lee, S.J. Yook, Natural convection around a radial heat sink, Int. J. Heat Mass Transfer 53(2010) 29352938.Fluent 进行接触双圆管自然对流研究的相关结果3D3D3D3D空气，空气，DDABCABCFluent 进行接触双圆管自然对流研究的相关结果流动假设：二维，稳态，不可压

10、缩（除y方向），热物性恒定（除y方向动量方程），忽略粘性耗 散和辐射Y方向密度变化通过布西涅斯克近似（Boussinesq approximation）简化，即：( ) ( )控制方程：连续性方程: + = 0动量方程：x 方向: + = 1 + 2 方向: + = 1 + 2 + 能量方程: + = 2Fluent 进行接触双圆管自然对流研究的相关结果数值结果验证：V.T. Morgan, The overall convective heat transfer from smooth circular cylinders, Adv. Heat Transfer11 (1975) 199-2

11、10.S.W Churchill, H.S. Chu, Correlating equations for laminar and turbulent free convection from a horizontal cylinder, Int. J. Heat Mass Transfer 18 (1975) 1049-1053.A. Bejan, A.J. Fowler, G. Stanescu, The optimal spacing between horizontal cylinders in a fixed volume cooled by natural convection,

12、Int. J. Heat Mass Transfer 38 (1995) 2047-2055.Fluent 进行接触双圆管自然对流研究的相关结果数值结果验证：M. Corcione, Correlating equations for free convection heat transfer from horizontal isothermalcylinders set in a vertical array, Int. J. Heat Mass Transfer 48 (2005) 3660-3673.T.H. Kuehn, R.J. Goldstein, Numerical soluti

13、on to the Navier-Stokes equations for laminar natural convection about a horizontal isothermal circular cylinder, Int. J. Heat Mass Transfer 23 (1980) 971-979.P. Wang, R. Kahawita, T.H. Nguyen, Numerical computation of the natural convection flow about a horizontal cylinder using splines, Num. Heat

14、Transfer 17 (1990) 191-215. = 0306090120150180103Present3.7883.7523.6363.3662.8631.9541.219Corcione 153.7893.7553.6403.3762.8411.9581.210Kuehn and Goldstein 163.8903.8503.7203.4502.9302.0101.220Wang et al. 173.8603.8203.7003.4502.9301.9801.200105Present9.7929.6919.3348.7837.9705.8982.015Corcione 159

15、.6949.5959.2978.7497.8715.8481.989Kuehn and Goldstein 1610.15010.0309.6509.0207.9105.2901.720Wang et al. 179.8009.6909.4808.9008.0005.8001.940Fluent 进行接触双圆管自然对流研究的相关结果数值结果验证：M. Corcione, Correlating equations for free convection heat transfer from horizontal isothermal cylinders set in a vertical ar

16、ray, Int. J. Heat Mass Transfer 48 (2005) 3660-3673.T.H. Kuehn, R.J. Goldstein, Numerical solution to the Navier-Stokes equations for laminar natural convection about a horizontal isothermal circular cylinder, Int. J. Heat Mass Transfer 23 (1980) 971-979.P. Wang, R. Kahawita, T.H. Nguyen, Numerical

17、computation of the natural convection flow about ahorizontal cylinder using splines, Num. Heat Transfer 17 (1990) 191-215.Fluent 进行接触双圆管自然对流研究的相关结果数值结果验证：M. Corcione, Correlating equations for free convection heat transfer from horizontal isothermal cylinders set in a vertical array, Int. J. Heat Mass Transfer 48 (2005) 3660-3673.T.H. Kuehn, R.J. Goldstein, Numerical solution to the Navier-Stokes equations for laminar natural convection about a horizontal isothermal circular cylinder, Int. J. Heat Mass Transfer 23 (1980) 971-979.P. W