Numerical Simulation of Transient 3-D Turbulent Hested Jet into Crossflow in a Thick-Wall T-Junction Pipe  

Numerical Simulation of Transient 3-D Turbulent Heated Jet into Crossflow in a Thick-Wall T-Junction Pipe

作　　者：Wu Hailing, Chen Tingkuan, Luo Yushan, Wang Haijun (State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University, Xi’an 710049, China) 

出　　处：《Journal of Thermal Science》2001年第1期46-51,共6页热科学学报（英文版）

基　　金：Supports by the National Key Plan for Basic Science(Approved Number:G1999022308)

摘　　要：The present work is to investigate the transient three-dimensional heated turbulent jet into crossflow in a thickwall T-junction pipe using CFD package. Two cases with the jet-to-crossflow velocity ratio of 0.05 and 0.5 are computed, with a finite-volume method utilizing κ-ε model. Comparison of the steady-state computations with measured data shows good qualitative agreement. Transient process of injection is simulated to examine the thermal shock on the T-junction component. Temporal temperature of the component is acquired by thermal coupling with the fluid. Via analysis of the flow and thermal characteristics, factors causing the thermal shock are studied. Optimal flow rates are discussed to reduce the thermal shock.

关 键 词：numerical simulation low jet-to-crossflow velocity ratio thick-wall T-junction pipe thermal shock 

分 类 号：O357.5[理学—流体力学]