期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

烟气输运的大涡模拟研究(英文) 被引量：6

Application of Large Eddy Simulation to Smoke Movement
在线阅读 下载PDF
导出
摘要 应用大涡模拟方法 ,并结合Smagorinsky亚格子尺度模型 ,数值研究了烟气输运问题。为了有效地模拟烟气输运过程 ,文中采用低马赫数近似下的三维可压缩Navier Stokes方程进行求解 ,并采用有限差分法数值计算了滤波后的控制方程。对于燃烧过程中所产生的热释放 ,文中采用Lagrangian粒子携带热量 (即热元模型 )的近似方法来模拟 ,同时这些运动粒子进一步用来标识烟气的输运过程。文中数值计算了燃烧热源所形成的热气流和烟气输运过程 ,分析讨论了相关的湍流特性 ,以及温度场和速度场 。 Smoke movement is investigated by use of large eddy simulation (LES) approach coupled with Smagorinsky subgrid scale (SGS) model. The filtered three dimensional compressible Navier Stokes equations under low Mach number approximation are numerically solved by finite difference method. The motion of hot gases and smoke is simulated and driven by Lagrangian particles carrying the heat release of combustion. Thermal turbulent flow induced by an isolated pool fire in a two wall enclosure is investigated, and some typical turbulent flow behaviors are discussed.
作者 刘晋 陆夕云 廖光煊 范维澄
机构地区 中国科学技术大学力学和机械工程系 中国科学技术大学火灾科学国家重点实验室
出处 《火灾科学》 CSCD 2002年第1期5-14,共10页 Fire Safety Science
关键词 大涡模拟 亚格子尺度模型 烟气输运 可压缩湍流 燃烧 large eddy simulation (LES), subgrid scale (SGS) model, smoke movement, compressible turbulence
分类号 O643.21 [理学—物理化学] TU998.1 [建筑科学—市政工程]
  • 相关文献

参考文献20

  • 1[1]Galperin, B. and Orszng S. A. Large eddy simulation of complex engineering and geophysical flows [M]. Cambridge University Press, New York (1993).
  • 2[2]McGrattan, K. B., Baum, H. R. and Rehm, R. G. Large eddy simulation of smoke movement [J]. Fire Safety J. 30,161～178 (1998).
  • 3[3]Wang W. P. and Pletcher R. H., On the large eddy simulation of a turbulent channel flow with significant heat transfer [J]. Phys. Fluid A 8, 3354～3366 (1996).
  • 4[4]Liu, N. Y., Lu, X. Y. and Zhuang, L. X. A new dynamic subgrid-scale model for the large eddy simulation of stratified turbulent flows [J]. Science in China 43, 391 ～ 399(2000).
  • 5[5]Liu, N. Y., Lu, X. Y., Wang, S. W. and Zhuang, L.X. Large eddy simulation of stratified channel flow [J]. Acta Mechanica Sinica 13, 331 ～ 338 (1997).
  • 6[6]Zhong, F. Q., Lu, X. Y. and Zhuang, L. X., An improved dynamic subgrid-scale model for the large eddy simulation and its applications [J ]. Science in China 45,(2002).
  • 7[7]Moin, P., Squires, K., Cabot, W. and Lee, S. A dynamic subgrid-scale model for compressible turbulence and scalar transport [J]. Phys. Fluids 3, 2746～2757 (1991).
  • 8[8]Speziale, C. G., Erlebacher, G., Zang, T. A. and Hussaini, M. Y. The subgrid-scale modeling of compressible turbulence [J]. Phys. Fluids A 31, 940～942 (1988).
  • 9[9]Erlebacher, G., Hussaini, M. Y., Speziale, C. G. and Zang, T. A. Toward the large eddy simulation of compressible turbulent flows [J]. J. Fluid Mech. 238, 155～ 185(1992).
  • 10[10]Lu, X. Y., Sung, H.-G., Hsieh, S.-Y. and Yang, V.Large eddy simulation of turbulent swirling flow injected into a chamber [ R ]. Report of PERC, Penn. State Univ.(2001).

同被引文献32

  • 1苏铭德.子格(SGS)模型在内流湍流中的大涡模拟[J].水动力学研究与进展（A辑）,1994,9(6):680-688. 被引量：4
  • 2张和平,张人杰,麻柏坤,范维澄,霍然.建筑物内火灾烟羽流和顶蓬射流诱发的空气运动盐水模拟实验研究[J].实验力学,1997,12(1):70-79. 被引量：8
  • 3张先来 译.国外高层建筑火灾烟气流动数学模化研究动态[J].消防技术,1996,.
  • 4LIST E. Turbulent jets and plumes[J ]. Annual Review of Fluid Mechanics, 1982,14 (2) : 189 - 212.
  • 5SAITOH T, YAMADA N. Experimental and numerical investigation of thermal plume in urban surface layer [ J ]. Experimental Thermal and Fluid Science, 2004,28(6) :585 - 595.
  • 6VERZICCOA R. Effects of nonperfect thermal sources in turbulent thermal convection[J]. Physics of Fluids, 2004,16(6) : 1965 - 1979.
  • 7HANJALIC K. One-point eclosure models for buoyancy turbulent flows[J ]. Annual Review of Fluid Mechanics, 2002, 34:321 - 347.
  • 8WORTHY J, RUBINI P. Large eddy simulation of buoyant plumes[ C]//4th International Seminar on Fire and Explosion Hazards. Londonderry, UK,2003.
  • 9YANG X, DOMARADZKI J. Large eddy simulation of rotating decaying turbulence[J]. Physics of Fluids, 2004,16 (11) : 4088 - 4104.
  • 10YANG X, FU S. The effect of filtering on truncated Navier-Stokes equations[J]. Journal of Turbulence, 2007,8(8) : 1 - 18.

引证文献6

二级引证文献14

火灾科学
2002年 第1期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部