Experimental Study on Swirling Flow with Sudden Expansion by Using 3D Particle Image Velocimetry Technique and Heat Transfer in a Circular Horizontal Tube
- 저자
- T*e-Hyun Chang, Chang-Hoan Lee
- 게재저널
- International Journal of Signal Processing, Image Processing and Pattern Recognition
- 키워드
- swirl, recirculation, streamline, reattachment
- 개요
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The effect of swirling on the flow characteristics of tubes with sudden expansion is experimentally examined by 3D particle image velocimetry(PIV) technique to determine velocity profiles. The swirling flow of water in sudden 1:2 axisymmetric expansion has been previously studied within a horizontal round tube. A tangential slot is used as a swirl generator for swirling flow, whereas a honey comb is used for flow without swirling. Three velocities with swirling flows are compared along the test section at Re=14800, and the streamline in the recirculation zone is described. In addition, heat transfer results are include and compared the Nusselt number with and without swirl flow for reattachment length.
- 첨부파일
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