This paper reported three-dimensional numerical simulations of the steady laminar flow and heat transfer in corrugated-undulated channels with sinusoidal waves, aiming to investigate the effects of intersection angles between corrugated and undulated plate and Reynolds number (Re) on the flow and heat transfer. The simulations are conducted by using multi-channel computational domain for three different geometries. The code is validated against experimental results and then data for Nusselt number (Nu) and friction factor are presented in a Re range of , and intersection angle range of . The simulation confirms the changes of (averaged over undulated plate) and (averaged over corrugated plate) with representing different characteristics. As increases, Nu ( or ) is about 2–16 times higher for the corrugated-undulated configurations CP-UH1 and CP-UP1 and the concomitant is about 4–100 higher, when compared to a straight channel having square cross section. The minimum of local Nu ( or ) is situated at the four contact points where the top plate touches the bottom one, and the high Nu is located upstream of the crest of the conjugate duct. Performance evaluation for the CP-UH1 channel shows that the goodness factors are larger than 1 with the straight channel having a square cross section as a reference, and the geometry channel has optimal flow area goodness.
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Research Papers: Special Issue On Boiling And Interfacial Phenomena
Effects of Intersection Angles on Flow and Heat Transfer in Corrugated-Undulated Channels With Sinusoidal Waves
Jixiang Yin,
Jixiang Yin
School of Energy and Power Engineering,
e-mail: yjxiangwise@hotmail.com
Xi’an Jiaotong University
, Xi’an 710049, P. R. C.
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Guojun Li,
Guojun Li
School of Energy and Power Engineering,
Xi’an Jiaotong University
, Xi’an 710049, P. R. C.
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Zhenping Feng
Zhenping Feng
School of Energy and Power Engineering,
Xi’an Jiaotong University
, Xi’an 710049, P. R. C.
Search for other works by this author on:
Jixiang Yin
School of Energy and Power Engineering,
Xi’an Jiaotong University
, Xi’an 710049, P. R. C.e-mail: yjxiangwise@hotmail.com
Guojun Li
School of Energy and Power Engineering,
Xi’an Jiaotong University
, Xi’an 710049, P. R. C.
Zhenping Feng
School of Energy and Power Engineering,
Xi’an Jiaotong University
, Xi’an 710049, P. R. C.J. Heat Transfer. Aug 2006, 128(8): 819-828 (10 pages)
Published Online: January 7, 2006
Article history
Received:
May 23, 2005
Revised:
January 7, 2006
Citation
Yin, J., Li, G., and Feng, Z. (January 7, 2006). "Effects of Intersection Angles on Flow and Heat Transfer in Corrugated-Undulated Channels With Sinusoidal Waves." ASME. J. Heat Transfer. August 2006; 128(8): 819–828. https://doi.org/10.1115/1.2222378
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