Elliptic relaxation for near wall turbulence models

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Cf 0.005 0.0045 0.004 0.0035 0.003 0.0025 Test cases Flat plate: Channel Flow: (Exp: Weighardt and Tillman) (Kim et al., 1987) Exp LDM ϕ - f 2e+06 4e+06 6e+06 8e+06 Re x Elliptic relaxation for near wall turbulence models – p. 16/22
Test cases Natural convection: Tall cavity (Exp: Betts and Bokhari, 1995). V(m/s) V (m/s) V(m/s) 0.2 0.1 0 -0.1 -0.2 0.2 0.1 0 -0.1 -0.2 0.1 0.05 0 -0.05 -0.1 -0.15 Exp y/H = 0.50 ϕ - f LDM k-ε L-S Exp y/H = 0.70 Exp y/H = 0.95 a) 0 0.02 0.04 0.06 0.08 x (m) V (m/s) V (m/s) V (m/s) 0.2 0.1 0 -0.1 -0.2 0.2 0.1 0 -0.1 -0.2 0.2 0.1 0 -0.1 Exp y/H = 0.50 ϕ - f LDM k-ε L-S Exp y/H = 0.70 Exp y/H = 0.95 -0.2 0 0.02 0.04 0.06 0.08 x(m) a) Ra = 0.86x10 6 b) Ra = 1.43x10 6 b) Elliptic relaxation for near wall turbulence models – p. 17/22
Page 1 and 2: Elliptic relaxation for near wall t
Page 3 and 4: Introduction Why modelling the near
Page 5 and 6: The wall effects: Introduction No-s
Page 7 and 8: The wall effects: Introduction Bloc
Page 9 and 10: The wall effects: ¡ ¡ ¡ ¡ ¡ ¡
Page 11 and 12: Elliptic relaxation approach The so
Page 13 and 14: The v 2 − f model In order the si
Page 15 and 16: Advantages: The v 2 − f model Rep
Page 17 and 18: The ϕ − f model Advantages of th
Page 19: The ϕ − f model The boundary con
Page 23 and 24: Test cases Flow over periodic hills
Page 25 and 26: Test cases Multiple impinging jets.

Elliptic relaxation for near wall turbulence models

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