Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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An Experimental Study on Swirling Flow in a Sudden Expansion Tube using 3D PIV Technique

3D PIV 기법을 이용한 선회유동의 급팽창에 관한 실험적 연구

  • 장태현 (한국과학기술정보연구원) ;
  • 길상철 (한국과학기술정보연구원 유망기술분석팀)
  • Published : 2009.03.31
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Abstract

The effect of swirl on the flow characteristics in a sudden expansion tube was examined experimentally by using 3D PIV(particle image velocimetry) to capture the velocity profiles. The swirling flow of water through a sudden 1:2 axisymmetric expansion has previously been studied experimentally within a horizontal round tube. A kind of tangential slot is used as a swirl generator for swirling flow and a honey comb is used for without swirl flow. The work with the swirl and without swirl results are compared to each other at the same Reynolds number. Liquid crystal was employed to measure temperature profiles and heating coil used for heat transfer with and without swirl flow. And then the Nusselt number ratoes(Nu/Nudb) are calculated along the test section.

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References

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