Numerical analysis for a round turbulent buoyant jet in a cross flow

作者：Zeng Yuhong^*; Huai Wenxin

来源：Journal of Basic Science and Engineering, 2005, 13(2): 120-128.

• Cross flow
• Hybrid finite analytic method
• Numerical simulation
• Round turbulent buoyant jet
• Temperature field
• Velocity trajectories

The k-Ε model is applied to establish the mathematical model of vertical round buoyant jet in cross-flow and it is solved using the Hybrid Finite Analytic Method (HFAM). The simulation of the temperature field is verified by the experiments. The physical parameters such as configuration of the flow, the bifurcation phenomena, and the temperature and velocity trajectories were correctly predicted: the trajectory based on maximum velocity and maximum temperature is different, the included angle of the two high temperature region in the cross section is proved to be in the same region as that in the air, and the most characterizing parameter for 3-D round buoyant jets in flowing environment is the jet-to-cross-flow velocity ratio. It is suggested that the mathematical model can be used to simulate the 3-D round heated buoyant jets discharged from a submerged port in flowing environment.

• 出版日期2005