Browse > Article

Large Eddy Simulation of turbulent flow around a bluff body inside a sudden expansion cylindrical chamber  

최창용 (전주대학교 기계공학과)
고상철 (전주대학교 기계공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.28, no.1, 2004 , pp. 98-108 More about this Journal
Abstract
This study concerns a large eddy simulation (LES) of turbulent flow around a bluff body inside a sudden expansion cylindrical chamber, a configuration which resembles a premixed gas turbine combustor The simulation code is constructed by using the general coordinate system based on the physical contravariant velocity components. The Smagorinsky model is employed and the calculated Reynolds number is 5,000 based on the bulk velocity and the diameter of the inlet pipe. The combined grid technique and cylindrical grid are tested in the numerical simulation with complex geometry. The predicted turbulent statistics are evaluated by comparing with LDV measurement data. The numerical flow visualizations depict the behavior of turbulent mixing process behind the flame holder.
Keywords
LES (Large Eddy Simulation); Physical Contravariant Velocity Component; Generalized Coordinate; Flame Holder;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 ダンブディフュ-ザ內の流動機構に關する硏究 /
[ 佐藤篤;志澤高郎;本阿彌眞治 ] / 日本機械學會 論文集 B
2 Largeeddy simulation of turbulent flow in the the straight circular pipe using the composite grid system /
[ S.Togashi;T.Kobayashi ] / Proc. of 3rd JSME-KSME Fluid Engineering Conf.
3 TOMCAT-A code for numerical generation of boundary fitted curvilinear coordinate system on fields containing any number of arbitary two dimensional bodies /
[ Tompson,J.F.(et al.) ] / J. Comp. Phys.
4 General calculation experiments with the primitive equations, I, The basic experiment /
[ Smagorinsky,J. ] / Monthly Weather Review
5 Numerical simulation of turbulent pre-mixed flame around a bluff body using the k-ε and flamelet models /
[ Amano,K.;Inage,S.;Yamakata,M.;Taniguchi,M. ] / 9th Symp. on Turbulent Shear Flows
6 Calculating three-dimensional flows around structures and over rough terrain /
[ Hirt,C.W.;Cook,J.L. ] / J. Computational Physics
7 Large eddy simulation of plane turbulent jet using a new outlet velocity boundary condition /
[ Dai,Y.;Kobayashi,T.;Taniguchi,N. ] / JSME int. Journal B   ScienceOn
8 Largeeddy simulation of turbulent confined coannular jets /
[ Akselvoll,K.;Moin,P. ] / J. Fluid Mech.
9 LES에 의한 원관 내 난류의 유동 해석 /
[ 고상철 ] / 한국박용기관학회 논문집   과학기술학회마을
10 On turbulent flow near a wall /
[ Van Driest, E. R. ] / J. of the Aeronautical Scienecs
11 A Calculation precedure for turbulent flow in complex geometries /
[ Demirdzic,I.;Gosman,A.D.;Issa,R.I.;Peric,M. ] / Computers and Fluid   ScienceOn
12 ダンブディフュ-ザ形燃燒器に硏究 /
[ 緖方秀樹;志澤高郎;本阿彌眞治 ] / 日本機械學會 論文集 B
13 A stable and accurate convective modeling procedure based on quadratic upstream interpolation /
[ Leonard,B.P. ] / Comp. Meth. Appl. Mech. and Eng.   ScienceOn