Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)
- Volume 7 Issue 1
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- Pages.81-88
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- 1995
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- 1229-6422(pISSN)
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- 2465-7611(eISSN)
Experimental Investigation on the Flow in Concentric Annuli with Both Rough Walls
내·외벽에 거칠기가 있는 이중동심관 유동에 대한 실험적 연구
Abstract
Fully developed turbulent flow through three concentric annuli with both the rough inner and outer walls was experimentally investigated for a Reynolds number range Re=15,000-85,000. Measurements were made of the pressure drop, the positions of zero shear stress and maximum velocity, and the velocity distributions in annuli of radius ratios,
Keywords
- Concentric Annuli;
- Fully Developed Flow;
- Roughness Effect;
- Wall Shear Stress;
- Pressure-drop Coefficient
- 이중동심관;
- 충분히 발전된 유동;
- 거칠기 효과;
- 벽면 전단응력;
- 압력강하계수;