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열교환기내 리브드 튜브의 유동 특성에 관한 수치해석적 연구A Study on Numerical Analysis for Flow Characteristics in Ribbed Tube
- Other Titles
- A Study on Numerical Analysis for Flow Characteristics in Ribbed Tube
- Issue Date
- 2011
- Publisher
- 한국기계가공학회
- Keywords
- Ribbed Tube(리브드 튜브); Fully Developed Hydrodynamically Region(수력학적 완전발달 영역); Standard K-εmodel(표준 k-ε모델); Ribbed Tube(리브드 튜브); Fully Developed Hydrodynamically Region(수력학적 완전발달 영역); Standard K-εmodel(표준 k-ε모델)
- Citation
- 한국기계가공학회지, v.10, no.4, pp 115 - 120
- Pages
- 6
- Indexed
- KCI
- Journal Title
- 한국기계가공학회지
- Volume
- 10
- Number
- 4
- Start Page
- 115
- End Page
- 120
- ISSN
- 1598-6721
2288-0771
- Abstract
- A ribbed tube consumes more power to transport the fluid by comparing with flat one. After the tangential velocity component occurs, its contact area with the ribbed tube becomes large and it enables the effective energy transportation. The flow characteristics vary according to the geometry of tube rib. This study aims to investigate the flow characteristics of fluids working at Reynolds numbers of 20,000, 40,000, 60,000 and 80,000 with the air at 15℃ in the ribbed test tube high 1mm and wide 8.48mm. As the flow characteristics are included with the states of fully developed hydrodynamical region, axial velocity vector distribution and non-dimensional velocity distribution, they are shown with the physical validity.
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