摘要
利用流体力学数值计算软件FLUENT,基于混合物模型对气-液两相流体绕等间距排列圆管流动进行数值模拟,得到不同工况中心圆柱的升阻力时程和整个计算域的流动特性。通过计算发现,对于气-液两相流绕等间距排列圆管流动而言,中心圆柱的升阻力均方值、极值和旋涡脱落频率均随着雷诺数增大而增大。并通过实验对模拟结果进行比较,验证了模拟结果的合理性。
By using the computational fluid dynamic software FLUENT, on the basis of the mixture model, gas-liquid two phase flow around the cylinders with equivalent pitch is simulated to obtain the drag and lift forces on the central cylinder and the flow behavior of the whole calculating domain. The results show that the root mean square value and extreme value of the lift and drag forces on the central cylinder and the frequency of the vortex shedding increase with the growth of Reynolds number. The rationality is also validated with experimental results. © 2015, Editorial Office of Nuclear Power Engineering. All right reserved.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2015年第S2期138-141,共4页
Nuclear Power Engineering
关键词
气-液两相流
数值模拟
旋涡脱落
Computational fluid dynamics
Computer simulation
Cylinders (shapes)
Drag
Flow fields
Fluid dynamics
Reynolds number
Vortex flow
Vortex shedding
