Backward-facing Step
- Computational Domain: [0, 1] × [0, 10]
- Mesh Size: 50 × 500
- Inlet velocity file: parabola with peak velocity (1.5, 0.0)
- No-slip boundary conditions (0.0, 0.0) on other boundaries
- Denote U as the two-thirds of the initial peak velocity
- Re_h = U*h/ν, where h is the height of the step
- Re_D = U*D/ν, where D is the y-axis domain length
- In this study, D = 2*h, which is equivalent to Re_D = 2*Re_h
Reynolds Number |
Velocity Field |
Pressure Contour |
Re_h = 50 Re_D = 100
| |
|
Comment |
The reattachment length is about 1.5; the ratio to the step height (h = 0.5) is about 3.0. |
Reynolds Number |
Velocity Field |
Pressure Contour |
Re_h = 100 Re_D = 200
| |
|
Comment |
The reattachment length is about 2.5; the ratio to the step height (h = 0.5) is about 5.0. |