Numerical analysis of bubbly flow by three-dimensional vortex method

被引：0
作者：
Uchiyama T. [1 ]
Matsumura S. [1 ]
机构：
[1] EcoTopia Science Institute, Nagoya University, Nagoya-shi, Aichi, 464-8603, Furo-cho, Chikusa-ku
来源：
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B | 2010年 / 76卷 / 762期
关键词：
Bubble Plume; Computational Fluid Dynamics; Gas-Liquid Two-Phase Flow; Multi-Phase Flow; Vortex;
D O I：
10.1299/kikaib.76.762_211
中图分类号：
学科分类号：
摘要：
This study proposes a three-dimensional vortex method for bubbly flow. The method discretizes the vorticity field by vortex elements. The behavior of the vortex element and the bubble motion are simultaneously analyzed with the Lagrangian approach. This study also applies the vortex method to simulate a bubble plume. In a tank containing water, small hydrogen bubbles are released from a bubble generator placed on the bottom of the tank. The bubbles rise due to the buoyant force and induce the water flow around them. The simulation highlights that the rising bubbles of the starting plume induce large-scale eddies at the top of them and that the bubbles are entrained into the eddies. It also demonstrates that the large-scale eddies appear around the developed plume and that they cause the meandering behavior of the plume. Such three-dimensional flows are favorably compared with the experimental results, indicating the validity of the proposed vortex method.
引用
收藏
页码：211 / 218
页数：7
相关论文
共 19 条
  • [1] Cottet G.-H., Koumoutsakos P., Vortex Methods: Theory and Applications, (2000)
  • [2] Ploumhans P., Winckelmans G.S., Salmon J.K., Leonard A., Warren M.S., Vortex methods for direct numerical simulation of three-dimensional bluff body flows: Application to the sphere at Re=300, 500, and 1000, Journal of Computational Physics, 178, pp. 427-463, (2002)
  • [3] Chatelain P., Curioni A., Bergdorf M., Rossinelli D., Andreoni W., Koumoutsakos P., Billion vortex particle direct numerical simulations of aircraft wakes, Computer Methods in Applied Mechanics and Engineering, 197, pp. 1296-1304, (2008)
  • [4] Uchiyama T., Fukase A., Three-dimensional vortex method for gas-particle two-phase compound round jet, Journal of Fluids Engineering, Transactions of the ASME, 127, 1, pp. 32-40, (2005)
  • [5] Uchiyama T., Naruse M., Three-dimensional vortex simulation for particulate jet generated by free falling particles, Chemical Engineering Science, 61, 6, pp. 1913-1921, (2006)
  • [6] Uchiyama T., Yagami H., Numerical simulation for the collision between a vortex ring and solid particles, Powder Technology, 188, pp. 73-80, (2008)
  • [7] Uchiyama T., Degawa T., Numerical simulation for gas-liquid two-phase free turbulent flow based on vortex in cell method, JSME International Journal, Series B: Fluids and Thermal Engineering, 49, 4, pp. 1008-1015, (2007)
  • [8] Uchiyama T., Degawa T., Numerical simulation of plane bubble plume by vortex method, Journal of Mechanical Engineering Science, 222, pp. 1193-1201, (2008)
  • [9] Alam M., Arakeri V.H., Observations on transition in plane bubble plumes, Journal of Fluid Mechanics, 254, pp. 363-374, (1993)
  • [10] Schiller L., Naumann A.Z., Über die grundlegenden Berechnungen bei der Schwerkraftaufbereitung, Zeitschrift des Vereines Deutscher Ingenieure, 77, pp. 318-321, (1933)
12