学术
摘 要:
基于有限体积法思想运用SIMPLER方法PLS格式求解轴对称柱坐标系下的GAO-YONG方程组，对管流边界层以及圆管湍流的自然转捩过程进行数值模拟。结果表明，方程不仅对于边界层流动的内层壁面律和外层亏损律能作出良好的预测，而且能够预报层流湍流转捩过程中摩阻系数和速度型的变化。[著者文摘]
文章出处:
《航空动力学报》-2006年21卷1期 -7-12页
栏目信息:
文献标识码:
A
文章编号:
1000-8055（2006）01-0007-06
Numerical Simulation of Incompressible Turbulence in Tubes Using GAO-YONG Turbulence Model
WANG Xu-lun, GAO Ge （School of Jet Propulsion, Beijing University of Aeronautics and Astronautics,Beijing 100083,China）
Abstract:
Two-dimensional, axisymmetric, stationary, and incompressible Hagen-Poiseuille flow was numerically simulated with GAO-YONG turbulence model using SIMPLER （Semi-Implicit Method for Pressure-Linked Equations） method and PLS （Power Law Scheme）. As a result,the calculation successfully simulates the flow and predicts the fundamental properties of the boundary layer, including the natural transition process, which are close to the experimental data. It verifies the adaptability of GAO-YONG turbulence equations to real turbulent flow.[著者文摘]
Key words:
aerospace propulsion system; GAO-YONG turbulence model; turbulence;transition ; Hagen-Poiseuille flow
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