NUMERICAL SIMULATION OF HYDRODYNAMIC BEHAVIOR IN SPOUTED BEDS

Abstract

Abstract: The gas-solids flow behavior was predicted by means of a hydrodynamic model of dense gas-solid flow in spouted beds. Constitutive equations describing the particle interactions and friction of particles and viscosity were incorporated into a hydrodynamic simulation computer program. The effect of operating conditions (inverted cone inclination and gas spouting velocity) on particle velocity and concentration in the three zones of spouted beds: spout, annulus and fountain were numerically studied. Both vertical and horizontal particle velocities increased with increasing spouting gas velocity in the spouted region. The diameter of the spout increases with decreasing inclination. As inclination is greater than 60°, there is a neck near the jet.

Key words:

气固喷动床, 气固两相双流体模型, 数值模拟

关键词:

气固喷动床, 气固两相双流体模型, 数值模拟

HE Yurong, LU Huilin, LIU Wentie, ZHAO Yunhua, WANG Qiang. NUMERICAL SIMULATION OF HYDRODYNAMIC BEHAVIOR IN SPOUTED BEDS[J]. CIESC Journal, 2004, 55(2): 290-296.

何玉荣, 陆慧林, 刘文铁, 赵云华, 王强. 喷动床内气固两相流体动力行为的数值模拟 [J]. 化工学报, 2004, 55(2): 290-296.

[1]	YAN Chaoyu, LU Chunxi, WANG Dewu, LIU Yansheng, CAO Rui. Numerical simulation of transient hydrodynamics in gas-solid airlift loop reactor [J]. CIESC Journal, 2010, 61(9): 2225-2234.
[2]	QI Nana, WU Guiying, WANG Hui, ZHANG Kai, ZHANG Hu. CFD simulation of mixing characteristics in stirred tank by Smith turbine [J]. CIESC Journal, 2010, 61(9): 2305-2313.
[3]	ZHANG Min, YAN Gang, TAO Kai. Numerical simulation of natural convection in rectangular cavities with a heater of variable dimension [J]. CIESC Journal, 2010, 61(6): 1373-1378.
[4]	CHEN Bingbing, ZHANG Yuanping , GAO Zengliang , JIN Weiya. Numerical simulation of mass transfer in axial flow through randomly packed fiber bundle [J]. CIESC Journal, 2010, 61(6): 1406-1414.
[5]	CHEN Bingbing , GAO Zengliang , JIN Weiya. Numerical simulation of axial laminar flow through randomly packed fiber bundle [J]. CIESC Journal, 2010, 61(5): 1083-1088.
[6]	ZHANG Haijun;GUO Xueyan;CHEN Yongchen;NI Juanjuan . Evaluation of turbulence models used in simulation of flow field in bluff-body burner [J]. , 2010, 61(3): 573-579.
[7]	ZHU Yuan, CHEN Guoming, LIU Dexu. Simulation and assessment on leakage hazard from gas sweetening unit of sour gas processing plant in complex terrain [J]. CIESC Journal, 2010, 61(10): 2758-2764.
[8]	LIU Yongzhong, HUANG Biwu, WANG Le. Characteristics of injection pressure and saturation distributions of supercritical CO₂ injecting into heterogeneous saline aquifers [J]. CIESC Journal, 2010, 61(1): 32-42.
[9]	DU Zhongxuan, LIN Wensheng, GU Anzhong, GU Min. Numerical simulation of cooling heat transfer to supercritical methane in vertical circular tube [J]. CIESC Journal, 2009, 60(S1): 63-67.
[10]	HUANG Yuqi, YU Xiaoli. Flow and heat transfer analysis of perforated fin in compact heat exchanger [J]. CIESC Journal, 2009, 60(9): 2161-2170.
[11]	HAO Zhenhua, WANG Shuyan, BAI Yinghua, CHEN Juhui, LU Huilin. Simulation of gas-solids flow in spouted beds from  frictional-kinetic stresses model [J]. CIESC Journal, 2009, 60(6): 1414-1420.
[12]	MING Tingzhen, DANG Yanhui, LIU Wei, HUANG Suyi. Numerical analysis of fluid flow and heat transfer characteristics on elliptical tube with rectangular fins of air cooler [J]. CIESC Journal, 2009, 60(6): 1380-1384.
[13]	YIN Lijie, LI Xiang, LIU Guodong, WANG Shuai, CHEN Juhui, LU Huilin. Numerical simulation of flow behavior of gas and particles in bubbling fluidized bed with large eddy simulation approach [J]. CIESC Journal, 2009, 60(5): 1127-1134.
[14]	LIU Xin, JU Xiaoming, CHEN Yunliang. Simulation and experimental study on head loss of heat exchanger pipe with helical baffles [J]. CIESC Journal, 2009, 60(5): 1092-1096.
[15]	LUO Yunhui;YUE Kai;ZHAO Lingyun;ZHANG Xinxin;TANG Jintian . Theoretical study on heating effect of Fe₃O₄ magnetic fluid on tumor tissues in alternating magnetic field [J]. , 2009, 60(4): 833-839.

NUMERICAL SIMULATION OF HYDRODYNAMIC BEHAVIOR IN SPOUTED BEDS

喷动床内气固两相流体动力行为的数值模拟

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments