旋转通道内二维不可压湍流场的计算
林建忠
摘要(Abstract):
应用有哥氏力修正以及计及壁面效应的κ-ε湍流模式,计算了旋转矩形通道内二维湍流场,得到了通道内的平均速度和涡粘度分布以及壁剪切速度随旋转数的变化规律,并将这些结果与实验进行了比较,两者吻合较好。
关键词(KeyWords):
旋转通道;湍流场;模式修正;数值计算
基金项目(Foundation): 浙江大学科研基金
作者(Author):
林建忠
参考文献(References):
- 1 Johnston J P et al. Effect of Spanwise Rotation on the Structure of Two-Dimensional Fully Developed Turbulent Channel Flow. J. of Fluid Mechanics, 1972; 56, Part 3: 533~557
- 2 Howard J H G et at. Flow Prediction in Rotating Ducts Using Coriolis-Modified Turbulence Models. J. of Fluids Engineering, 1980; 102: 456~461
- 3 Launder B E, Spalding D B. The Numerical Computation of Turbulent Flows. Computer Methods in Applied Mechanics and Engineering, 1974; 3: 269~289
- 4 Nagano Y, Hishida M. Improved Form of the k-ε Model for Wall Turbulent Shear Flows. J. of Fluids Engineering, 1987; 109: 156~160
- 5 Wilcox D C, Chambers T L. Streamline Curvature Effects on Turbulent Boundary Layers. AIAA Journal, 1977; 15 (4) : 356~372
- 6 Lam C K G, Bremhorst K. A Modified Form of the k-ε Model for Predicting Wall Turbulence. J. of Fluids Engineering, 1981; 103: 456~460
- 7 Patankar S V, Spalding D B. A Calculation Procedure for Heat Mass and Momentum Transfer in Three-Dimensional Parabolic Flows. Int. J. of Heat Mass Transfer, 1972; 15: 1787~1806