Elliptic-blending k - ε model

More documents

Recommendations

Info

Failure — need for improvement Buoyancy driven flow — Tall cavity Case from Betts and Bokhari (2001) ◮ Symbols: Exp. ◮ Yellow line: v 2 −f ◮ Red line: EB k −<strong>ε</strong> Comments: Too large decay of k close to the wall (laminar-state like) ⇒ over-prediction of velocity and over-prediction of temperature gradient y/H Turbulent kinetic energy 1 0.8 0.6 0.4 0.2 0 0 0.01 0.02 0.03 x/H
Failure — need for improvement Buoyancy driven flow — Tall cavity Case from Betts and Bokhari (2001) Temperature Velocity y/H 308 306 304 302 300 298 296 294 292 290 0 0.01 0.02 0.03 x/H y/H 1 0.8 0.6 0.4 0.2 0 0 0.01 0.02 0.03 x/H
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 and 44: Part 1: Rotation and strong curvatu
Page 45 and 46: Failure — need for improvement NA
Page 47 and 48: Failure — need for improvement NA
Page 49: Part 2: Buoyancy-driven flows
Page 53: Failure — need for improvement Ve

Elliptic-blending k - ε model

Create successful ePaper yourself

Delete template?

Save as template?