|
|
- 2017
稀疏气固两相槽道湍流中颗粒受力的理论和数值分析
|
Abstract:
摘要 从理论分析和数值计算两个方面对稀疏气-固两相湍流中的颗粒所受的各种相间力的相对大小进行研究。颗粒受力由Basset-Boussinesq-Oseen方程描述，同时考虑剪切升力和旋转升力。研究结果表明，在相间力的计算公式适用范围内，通过频率分析和量级分析确定各相间力的相对大小具有较高的准确度。从颗粒所受各相间力随时间变化的模拟结果来看：除拖曳力和重力外，在主流和翼展方向上，Basset力比较重要；而在壁面法向上，拖曳力、剪切升力和Basset力均比较重要。
| [1] | Moser R D, Kim J, Mansour N N. Direct numerical simulation of turbulent channel flow up to <em>Re</em><sub>τ</sub>=590[J]. Physics of Fluids, 1999, 11(4):943-945. |
| [2] | Marchioli C, Soldati A, Kuerten J G M, et al. Statistics of particle dispersion in direct numerical simulations of wall-bounded turbulence:results of an international collaborative benchmark test[J]. International Journal of Multiphase Flow, 2008, 34(9):879-893. |
| [3] | 李永明, 苏明旭, 袁安利,等.基于超声的管道内粉体体积分数的测量[J].中国科学院大学学报,2016, 33(2):277-282. |
| [4] | 王帅, 刘国栋, 赵飞翔,等. 循环流化床中颗粒聚团特性的模拟[J].化工学报,2014, 65(6):2027-2033. |
| [5] | Maxey M R, Riley J J. Equation of motion for a small rigid sphere in a nonunifrom flow[J]. Physics of Fluids, 1983, 26(4):883-889. |
| [6] | Pan Y, Banerjee S. Numerical Simulation of particle interactions with wall turbulence[J]. Physics of Fluids, 1996, 8(10):2733-2755. |
| [7] | Dorgan A J, Loth E. Simulation of particles released near the wall in a turbulent boundary layer[J]. International Journal of Multiphase Flow, 2004, 30(6):649-673. |
| [8] | Vance M W, Squires K D, Simonin O. Properties of the particle velocity field in gas-Solid turbulent channel flow[J]. Physics of Fluids, 2006, 18(6):2451-2466. |
| [9] | Wang Q, Squires K D, Chen M, et al. On the role of the lift force in turbulence simulations of particle deposition[J]. International Journal of Multiphase Flow, 1997, 23(4):749-763. |
| [10] | Chen M, Kontomaris K, McLaughlin J B. Direct numerical simulation of droplet collisions in a turbulent channel flow. Part I:Collision algorithm[J]. International Journal of Multiphase Flow, 1998, 24(7):1079-1103. |
| [11] | Li Y M, McLaughlin J B, Kontomaris K, et al. Numerical simulation of particle-laden turbulent channel flow[J]. Physics of Fluids, 2001, 13(10):2957-2967. |
| [12] | Yamamoto Y, Potthoff M, Tanaka T, Kajishima T, et al. Large-eddy simulation of turbulent gas-particle flow in a vertical channel:effect of considering inter-particle collisions[J]. Journal of Fluid Mechanics, 2001, 442(1):303-334. |
| [13] | Lain S. Study of turbulent two-phase gas-solid flow in horizontal channels[J]. Indian Journal of Chemical Technology, 2013, 20(2):128-136. |
| [14] | Kulick J D, Fessler J R, Eaton J K. Particle response and turbulence modification in fully-developed channel flow[J]. Journal of Fluid Mechanics, 1994, 277:109-134. |
| [15] | Pang M J, Wei J J, Yu B. Numerical investigation of phase distribution and liquid turbulence modulation in dilute particle-laden flow[J]. Particulate Science and Technology, 2011, 29(6):554-576. |
| [16] | Elghobashi S, Truesdell G C. Direct simulation of particle dispersion in a decaying isotropic turbulence[J]. Journal of Fluid Mechanics, 1992, 242:655-700. |
| [17] | 周力行. 离散型湍流多相流动的研究进展和需求[J]. 力学进展, 2008, 38(5):610-622. |
| [18] | Nasr H, Ahmadi G, McLaughlin J B. A DNS study of effects of particle-particle collisions and two-way coupling on particle deposition and phasic fluctuations[J]. Journal of Fluid Mechanics, 2009, 640(12):507-536. |
