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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2014.11
- 수록면
- 1,816 - 1,820 (5page)
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This paper studies the effect of inlet cross flow on the heat transfer in narrow radial ducts with the aspect ratio of 12. Total three geometries, one smooth, two wedged ducts, are modeled for analytical studies. Reynolds number is varied in the range from 13100 to 21000. Ratio of the mass flow rate of main flow and cross flow is maintained to 0.5. Heat transfer characteristics of cross flow are compared to those of no cross flow. Normal-inflow (without cross flow) case results show that area-averaged Nu number of smooth duct is highest. Nu number of Wedge 1 duct is 5% lower than smooth duct and Wedge 2 duct is 21% lower than smooth duct. Cross flow case result also show that area-averaged Nu number of smooth duct is highest. Nu number of Wedge 1 duct is 2% lower than smooth duct and Wedge 2 duct is 18% lower than smooth duct. Cross flow case of smooth duct Nu number is decreased 11% than normal inflow case result, Wedge 1 duct is decreased 8% and Wedge 2 duct is decreased 7%.
목차
Abstract
1. 서론
2. 수치 해석
3. 수치해석 결과 및 고찰
4. 결론
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