Large eddy simulation of the vortex breakdown in a turbulent swirling jet

被引：0
|
作者：
Borynyak, K., I [1 ]
机构：
[1] Inst Thermophys SB RAS, Ac Lavrentiev Ave 1, Novosibirsk 630090, Russia
来源：
XXXV SIBERIAN THERMOPHYSICAL SEMINAR, 2019 | 2019年 / 1382卷
基金：
俄罗斯科学基金会;
关键词：
COHERENT STRUCTURES;
D O I：
10.1088/1742-6596/1382/1/012004
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The paper presents the results of Large eddy simulation of a free swirling jet with Reynolds number Re = 10(4) for different swirl numbers. The swirl is organized via the rotation of the nozzle. The case has been divided onto two parts: rotating tube with honeycomb section using dynamic mesh and jet simulation with rotating nozzle using the initial conditions obtained in first part. Simulations were carried for six swirl numbers: 0, 0.15, 0.225, 0.3, 0.46, 0.63. The vortex breakdown with a central recirculation zone formation is observed in the last case.
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页数：7
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