Elliptic-blending k - ε model

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Failure — need for improvement Rotating channel flow Rotating channel flow DNS study from Kristofferson & Andersson (1993), for Rossby number varying as 0 < Ro < 0.5: U/U0 45 40 35 30 25 20 15 10 5 0 Ro = 0.1 Ro = 0 DNS Baseline CC Ro = 0.5 -1 -0.5 0 y/H 0.5 1 k/U 2 0 10 5 0 5 0 5 Ro = 0.5 Ro = 0.1 Ro = 0 0 -1 -0.5 0 y/H 0.5 1 Streamwise velocity Turbulent kinetic energy
Failure — need for improvement NACA 0012 at 10 ◦ incidence Experimental results from Chow, Zilliac and Bradshaw (1997) Conclusions from previous studies: 1. T.E. vortex diffuses too quickly with all classical 2-eq. <strong>model</strong>s, 2. lag-<strong>model</strong> and RSM improves on results, 3. CC very beneficial in predicting correct position/intensity of vortex
Page 1 and 2: Elliptic-blending k −ε model Val
Page 3 and 4: Introduction Assessing performance
Page 5 and 6: Formulation Equation-by-equation mo
Page 7 and 8: Formulation Equation-by-equation mo
Page 9 and 10: Formulation All-y + wall-treatment
Page 11 and 12: Validation Convergence Best converg
Page 13 and 14: Results: validation of all-y + wall
Page 15 and 16: Validation — Wall-treatment Chann
Page 25 and 26: Validation — Performance Channel
Page 27 and 28: Validation — Performance Backward
Page 29 and 30: Validation — Performance Backward
Page 31 and 32: Validation — Performance Periodic
Page 37 and 38: Validation — Performance 2d diffu
Page 43: Part 1: Rotation and strong curvatu
Page 47 and 48: Failure — need for improvement NA
Page 49 and 50: Part 2: Buoyancy-driven flows
Page 51 and 52: Failure — need for improvement Bu
Page 53: Failure — need for improvement Ve

Elliptic-blending k - ε model

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