Abstract
This paper describes a detailed study of the flow structure over repeated two-dimensional square ribs on a ground plane for various values of S/D, and the optimum value of S/D to augment the turbulence intensity near the ground plane. The pitch between the centers of two adjoining square ribs was varied at S/D=2, 3, 5, 7, 9, 11, 13 and 17. The time-mean velocity and turbulence intensity were measured by Laser Doppler Velocimeter. The static pressure was measured by Pitot static tubes. As a result, it is concluded that the pitch ratio S/D=9 is optimum to augment the turbulence intensity in the groove between two adjoining square ribs, when the two-dimensional square ribs are aligned on the wall as a heat transfer promoter.
| Original language | English |
|---|---|
| Pages (from-to) | 2499-2505 |
| Number of pages | 7 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series B |
| Volume | 61 |
| Issue number | 587 |
| DOIs | |
| Publication status | Published - 1995 Jan 1 |
Keywords
- Ground Plane
- Heat Transfer Promoter
- LDV
- Pitch Ratio
- Pressure Distribution
- Reattachment
- Recirculation Region
- Square Rib
- Turbulence
- Turbulent Flow
- Velocity Distribution
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
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Cite this
Okamoto, S., Tsunoda, K., Katsumata, T., Suzuki, D., & Abe, N. (1995). Effect to spacing ratio on flow over repeated two-dimensional square ribs on ground plane. Transactions of the Japan Society of Mechanical Engineers Series B, 61(587), 2499-2505. https://doi.org/10.1299/kikaib.61.2499