Abstract
CFD numerical simulation was adopted to calculate the drag coefficient of the 2D smooth plate, compared with the classic theories and formulas to verify the correctness and reliability of the CFD method. Based on the pre-existing experimental results, we made CFD contrast calculation between the smooth and ribleted plate, and the drag reduction is as large as 18.39%. The velocity field and vorticity field was analysed, and we could explore the drag reduction mechanism. A pair of reversed vortex formed at the tip of the riblet was the main reason that resulted in drag reduction.
| Original language | English |
|---|---|
| Pages (from-to) | 771-774 |
| Number of pages | 4 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 32 |
| Issue number | 5 |
| State | Published - May 2011 |
| Externally published | Yes |
Keywords
- Drag reduction
- Non-smooth surface
- Numerical simulation
- Turbulent flow
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