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사각채널에서 사다리꼴 와류발생기에 의한 열전달 촉진에 대한 수치해석

원문정보

Numerical Study on the Heat Transfer Enhancement of Trapezoidal Vortex Generator in a Rectangular Channel

박태환, 이수룡

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

Vortex Generators are used in heat exchanger to enhance the heat transfer of air side. 3-D numerical analysis is performed on heat transfer characteristics of a channel with trapezoidal vortex generator. We investigate the effects of vortex generators with two different inclined angles to flow direction which are forward and backward vortex generators. The thermal hydraulic performance such as Nu and pressure drop, is compared quantitatively. The results show that vortex generator enhances the heat transfer by developing boundary layers and secondary flow in the downstream. The downwash flow region corresponds to the maximum Nu, while the upwash flow region corresponds to Nu minimum. In the view of the heat transfer characteristics, FVG is better than BVG. However, when flow is turbulent as Re increases, the pressure drop for FVG is higher than that for BVG.

목차

ABSTRACT
1. 서론
2. 수치해석 모델 및 방법
3. 수치해석 결과 및 검토
4. 결론
후기
References

저자정보

  • 박태환 T. H. Park. Graduate Student, Dept. of Mechanical & Automotive Engineering, Seoul National University of Science and Technology
  • 이수룡 S. R. Lee. Member, Professor, Dept. of Mechanical & Automotive Engineering, Seoul National University of Science and Technology

참고문헌

자료제공 : 네이버학술정보

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