Critical Survey of Turbulence Modelling and Numerical Methods

这项研究是由多个领域的研究人员合作进行的，对湍流建模及其数值计算方案的现状进行了重要的综述。这项研究中讨论的主题如下。1.将离散涡方法应用于轴对称流动，将离散涡方法与边界元方法相结合来模拟湍流分离流。2.飞机绕流的湍流模型数值模拟；弯曲管道中的流动；旋转管道中的流动；计算结果与实验的比较。3.考虑湍流的相干结构的湍流模拟；壁面湍流的结构模拟。4.湍流两方程模型的湍流换热分析；代数应力模型中包含的常数的优化；湍流能量耗散率方程的理论背景。5.…湍流扩散中的动量、热量和质量的湍流输运更多的跛子，在旋转的汹涌的火焰中。6.平面Couette流、旋转管内流动、旋转圆锥边界层流动和旋转同心圆柱间流动向湍流的过渡；自由流湍流对过渡的影响。7.用于计算湍流换热特性的湍流模型；不使用湍流普朗特数概念的湍流模型。8.利用粘性/无粘性相互作用计算跨音速翼型绕流。9.用大涡模拟对湍流进行数值模拟。10.基于N-S方程的湍流直接模拟计算。在项目期间举行的7次会议上介绍并讨论了对个别研究人员的关键调查。本研究的结果发表在JSME关西分会第246次会议(1986年11月23-24日)和JSME第647届系列讲座“湍流模拟和数值模拟的基础和应用”(1987年7月13-17日)上。较少

This study is a critical survey of the present state-of-art of turbulence modelling and schemes of its numerical calculations, being performed by the co-operation of researchers from many fields. Subjects discussed in this study are the following. 1. Discrete-vortex methods applied to axisymmetric flows; combination of discrete-vortex methods and boundary-elements methods to simulate turbulent separated flows. 2. Numerical simulations by turbulence models of flows around aircrafts; flows in curved ducts; flows in rotating pipes; comparison of calculated results with experiments. 3. Turbulence modelling which considers coherent structure of turbulence; structural modelling of wall turbulence. 4. Analysis of turbulent heat transfer by 2-equation models of turbulence; optimization of constants included in algebraic stress models; theoretical back-ground of equations for the rate of dissipation of turbulence energy. 5. Turbulent transport of momentum, heat and mass in turbulent diffusion f … More lames and in swirling turbulent flames. 6. Transition to turbulence of plane Couette flow, flow in rotating pipes boundary layers along rotating cones and flow between rotating concentric cylinders; effects of free-stream turbulence on transition. 7. Turbulence modelling to be used to calculate turbulent heat-transfer properties; turbulence models not using the concept of turbulent Prandtl number. 8. Calculation of transonic flows around airfoils by using viscous/inviscid interaction. 9. Numerical simulation of turbulence by Large-Eddy-Simulation. 10. Calculation of turbulence by direct simulation based on Navier-Stokes equations. Critical surveys of individual researchers were presented and discussed at 7 meetings held during the term of the project. Results of the present study were presented at the 246th Meeting of Kansai Branch of JSME (23-24 Nov. 1986) and at the 647th JSME Lecture Series 'Fundamentals and applications of turbulence modelling and numerical simulation' (13-17 July 1987). Less