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각도형상에 따른 정사각형 곡관에서 출구면 및 하류직관거리의 속도분포특성에 관한 연구A Study on Velocity Distribution Characteristics of Exit Section and Downstream Straight Length in Square Curved Duct According to Angle Shape
- Other Titles
- A Study on Velocity Distribution Characteristics of Exit Section and Downstream Straight Length in Square Curved Duct According to Angle Shape
- Issue Date
- 2016
- Publisher
- 한국기계기술학회
- Keywords
- Square Curved Duct(정사각형 곡관); RSM(Reynolds Stress Model); Velocity Distribution(속도분포); Flow Parameters(유동인자); Standard Deviation(표준편차)
- Citation
- 한국기계기술학회지, v.18, no.3, pp.382 - 390
- Journal Title
- 한국기계기술학회지
- Volume
- 18
- Number
- 3
- Start Page
- 382
- End Page
- 390
- ISSN
- 1229-604X
- Abstract
- Through this study, velocity distribution characteristics of exit section and downstream straight length of square sectional 180° and 90° curved ducts were numerically analyzed with RSM (ReynoldsStress Model) by changing various flow parameters such as air velocity, surface roughness and hydraulic diameter etc. As a result of it, the maximum velocity profiles according to air velocity in 180° and 90° curved ducts were indicated at Y/D=0.8 and X/D=0.7 region. Also, the efficient measuring location in bended duct downstream was able to suggest when the most stable straight duct length in flow deviations were indicated at L/D=30 and L/D=10 region, and the standard deviation characteristics according to hydraulic diameter were mostly indicated at L/D=15∼30 and L/D=10 region considering minimum deviations in the same velocity condition.
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Related Researcher
- Yoon, Jun Kyu
- Engineering (기계·스마트·산업공학부(기계공학전공))