Large Eddy Simulation on the Turbulence Flow in Three-Dimensional
 Randomly Pellet Packed Beds

doi:10.16183/j.cnki.jsjtu.2018.09.007

Abstract

Abstract: A three-dimensional random structure model of pellet packed bed for porous media is built based on the discrete element software of LIGGGHTS. The effectiveness of the random model has been verified by the calculation of the macroscopic flow resistance coefficient and the local porosity. A comparative study on the turbulence characteristics and vortex distribution within the porous structure has been carried out employing large eddy simulation (LES) and the conventional k-ε turbulence model. Simulation results show that the random structure model could predict the local porosity and the macroscopic resistance coefficient of the porous medium effectively. For the complex turbulent flow inside the porous structure, LES could give detailed information of the small vortices with diameter of 0.4-2.0mm within the porous structure and demonstrate the complex vortex structure in large pores of the porous medium. Besides, LES could also record the generation and development of the small vortex, and the process of stretching, splitting and disappearing of the large vortex within the local pores in detail, and the results are more consistent with the reality and the basic theory of turbulence. The LES study on turbulence characteristics in the random pellet packed bed in this paper will lay the foundation for the future simulation of filtration combustion.

Key words: porous media, pellet packed bed, random structure model, large eddy simulation, turbulence flow

CLC Number:

TK 121

LIU Hongsheng,JIANG Linsong,WU Dan,XIE Maozhao. Large Eddy Simulation on the Turbulence Flow in Three-Dimensional Randomly Pellet Packed Beds[J]. Journal of Shanghai Jiaotong University, 2018, 52(9): 1050-1057.

References

［1］MUJEEBU M A, ABDULLAH M Z, MOHAMAD A A, et al. Trends in modeling of porous media combustion［J］. Progress In Energy And Combustion Science, 2010, 36(6): 627-650. ［2］BARRA A J, ELLZEY J L. Heat recirculation and heat transfer in porous burners［J］. Combust Flame, 2004, 137(1/2): 230-241. ［3］YU B H, KUM S M, LEE C E, et al. Combustion characteristics and thermal efficiency for premixed porous media types of burners［J］. Energy, 2013, 53: 343-350. ［4］GAO H B, QU Z G, FENG X B, et al. Methane/air premixed combustion in a two-layer porous burner with different foam materials［J］. Fuel, 2014, 115 (1): 154-161. ［5］STELZNER B, KERAMIOTIS C, VOSS S, et al. Analysis of the flame structure for lean methane-air combustion in porous inert media by resolving the hydroxyl radical［J］. Proceedings of the Combustion Institute, 2015, 35 (3): 3381-3388. ［6］ERGUN S. Fluid flow through packed columns［J］. Chemical Engineering Progress, 1952, 48 (2): 89-94. ［7］SONG Y C, JIANG L L, LIU Y, et al. An experimental study on CO2/water displacement in porous media using high-resolution magnetic resonance imaging［J］. International Journal of Greenhouse Gas Control, 2012, 10: 501-509. ［8］ROOZBAHANI M M, HUAT B B K, ASADI A. The effect of different random number distributions on the porosity of spherical particles［J］. Advanced Power Technology, 2013, 24(1): 26-35. ［9］MIAO T J, YU B M, DUAN Y G, et al. A fractal model for spherical seepage in porous media［J］. International Communications in Heat and Mass Transfer, 2014, 58: 71-78. ［10］PEDRAS M H J, DE LEMOS M J S. Computation of turbulent flow in porous media using a low-Reynolds k-ε modeland an infinite array of transversally displaced elliptic rods［J］. Numerical Heat Transfer, 2003, 43(6): 585-602. ［11］LUTSENKO N A. Modeling of heterogeneous combustion in porous media under free convection［J］. Proceedings of the Combustion Institute, 2013, 34 (2): 2289-2294. ［12］NIJEMEISLAND M. CFD study of fluid flow and wall heat transfer in a fixed bed of spheres［J］. AICHE Journal, 2006, 50(5): 906-921. ［13］BASMIL Y, NAOYA F, MASAYASU S. Turbulence-flame interaction and fractal characteristics of H2-air premixed flame under pressure rising condition［J］. Proceedings of the Combustion Institute, 2015, 35 (2): 1277-1285. ［14］周磊, 解茂昭, 罗开红, 等. 大涡模拟在内燃机中应用的研究进展［J］. 力学学报, 2013, 45(4): 467-482. ZHOU Lei, XIE Maozhao, LUO Kaihong, et al. Large eddy simulation for internal combustion engines: Progress and prospects［J］. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 467-482. ［15］刘周, 杨云军, 周伟江, 等. 基于RANS-LES 混合方法的翼型大迎角非定常分离流动研究［J］. 航空学报, 2014, 35(2): 372-380. LIU Zhou, YANG Yunjun, ZHOU Weijiang, et al. Study of unsteady separation flow around airfoil at high angle of attack using hybrid RANS-LES method［J］. Acta Aeronautica et Astronautica Sinica, 2014, 35(2): 372-380. ［16］李科, 胡羽, 黄兴亮, 等. 龙卷旋涡的大涡模拟及能量分离机理［J］. 燃烧科学与技术, 2016, 22(3): 198-205. LI Ke, HU Yu, HUANG Xingliang, et al. Tornado-like vortex flow and its mechanism of energy separation by large-eddy simulation［J］. Journal of Combustion Science and Technology, 2016, 22(3): 198-205. ［17］ERLEBACHER G, HUSSAINI M Y, SPEZIALE C G, et al. Toward the large-edd simulation of compressible turbulent flows［J］. Journal of Fluid Mechanics, 1992, 238: 155-185. ［18］SMAGORINSKY J. General circulation experiments with the primitive equations［J］. Monthly Weather Review, 1963, 91(3): 99-164. ［19］CALIS H P A, NIJENHUIS J, PAIKERT B C, et al. CFD modelling and experimental validation of pressure drop and flow profile in a novel structured catalytic reactor packing［J］. Chemical Engineering Science, 2001, 56 (4): 1713-1720. ［20］BEAR J, CORAPCIOGLU M Y. Fundamentals of transport phenomena in porous media［M］. Netherlands: Springer, 1984, 82: 199-256. ［21］MUELLER G E. Radial void fraction distributions in randomly packed fixed beds of uniformly sized spheres in cylindrical containers［J］. Powder Techno-logy, 1992, 72(3): 268-275.

[1]	ZHOU Xirui, WANG Ping, ZENG Haixiang, ZHANG Yang, PRASHANT Shrotriya, ANTONIO Ferrante, QI Haotian. Large Eddy Simulation on Blow-Off Limit of Methane and Hydrogen-Mixed Gas [J]. Journal of Shanghai Jiao Tong University, 2022, 56(5): 635-647.
[2]	XU Zhendong, DUAN Yuxuan, XU Huasong, YANG Fan, LI tie. Extension of the Local Domain-Free Discretization Method to Large Eddy Simulation of Turbulent Flows [J]. Air & Space Defense, 2022, 5(3): 93-98.
[3]	ZENG Haixiang, WANG Ping, SHROTRIYA Prashant, JIANG Linsong, MURUGESAN Meenatchidevi. Large Eddy Simulation of Partially Premixed Flame with Local Extinction Phenomenon [J]. Journal of Shanghai Jiao Tong University, 2022, 56(1): 35-44.
[4]	SUN Chong, TIAN Tian, ZHU Xiaocheng, DU Zhaohui. Analysis of POD and EPOD for Unsteady Flow Field of Wind Turbine Airfoil [J]. Journal of Shanghai Jiao Tong University, 2022, 56(1): 45-52.
[5]	ZHANG Xiaosong,WAN Decheng. Why Does a Wide Range of White Foam Appear Around Moving Ships? [J]. Journal of Shanghai Jiao Tong University, 2021, 55(Sup.1): 65-66.
[6]	GUO Zhiyuan, YU Peixiang, OUYANG Hua. Shear Layer Instability of Flow Around a Circular Cylinder Based on Large Eddy Simulation [J]. Journal of Shanghai Jiao Tong University, 2021, 55(8): 924-933.
[7]	HU Yayuan,WANG Chao. Nonlinear Volumetric Constitutive Relations of Saturated Media in Terms of Double-Stress Variables [J]. Journal of Shanghai Jiaotong University, 2019, 53(7): 797-804.
[8]	GAO Yun1,2,WANG Menghao1,ZONG Zhi3,ZOU Li3,PENG Geng1. Effect of Splitter Plate Length on Hydrodynamic#br# Performance Around Cylinder at High Reynolds Numbers [J]. Journal of Shanghai Jiaotong University, 2017, 51(4): 504-.
[9]	LU Jiabaoa,c (鲁佳宝), WANG Xuna (汪汛), ZHOU Daia,b,c* (周岱), LI Fangfeia (李芳菲), WANG Zitonga (王子通). Wind-Induced Effect of a Spatial Latticed Dome Structure Using Stabilized Finite Element Method [J]. Journal of shanghai Jiaotong University (Science), 2016, 21(1): 7-17.
[10]	YU Qiana (余谦), ZHANG Huai-xina,b* (张怀新), SUN Xue-yaoa (孙学尧). Research on Numerical Wave Tank Based on the Improved Moving-Particle Semi-Implicit Method with Large Eddy Simulation [J]. Journal of shanghai Jiaotong University (Science), 2014, 19(2): 226-232.
[11]	ZHANG Yun, FU Hui-Ping, MIAO Guo-Ping. LES-Based Numerical Simulation of Flow Noise for Submerged Body with Cavities [J]. Journal of Shanghai Jiaotong University, 2011, 45(12): 1868-1873.

Large Eddy Simulation on the Turbulence Flow in Three-Dimensional Randomly Pellet Packed Beds

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 11

Recommended Articles

Metrics

Comments