Abstract
In this paper, heat transfer and water flow characteristics in wavy microchannel heat sink (WMCHS) with rectangular cross-section with various wavy amplitudes ranged from 125 to 500. μm is numerically investigated. This investigation covers Reynolds number in the range of 100 to 1000. The three-dimensional steady, laminar flow and heat transfer governing equations are solved using the finite-volume method (FVM). The water flow field and heat transfer phenomena inside the heated wavy microchannels is simulated and the results are compared with the straight microchannels. The effect of using a wavy flow channel on the MCHS thermal performance, the pressure drop, the friction factor, and wall shear stress is reported in this article. It is found that the heat transfer performance of the wavy microchannels is much better than the straight microchannels with the same cross-section. The pressure drop penalty of the wavy microchannels is much smaller than the heat transfer enhancement achievement. Both friction factor and wall shear stress are increased proportionally as the amplitude of wavy microchannels increased.
| Original language | English |
|---|---|
| Pages (from-to) | 63-68 |
| Number of pages | 6 |
| Journal | International Communications in Heat and Mass Transfer |
| Volume | 38 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 01 Jan 2011 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Chemical Engineering(all)
- Condensed Matter Physics
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Numerical simulation of heat transfer enhancement in wavy microchannel heat sink. / Mohammed, H. A.; Gunnasegaran, Prem; Shuaib, N. H.
In: International Communications in Heat and Mass Transfer, Vol. 38, No. 1, 01.01.2011, p. 63-68.Research output: Contribution to journal › Article
TY - JOUR
T1 - Numerical simulation of heat transfer enhancement in wavy microchannel heat sink
AU - Mohammed, H. A.
AU - Gunnasegaran, Prem
AU - Shuaib, N. H.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - In this paper, heat transfer and water flow characteristics in wavy microchannel heat sink (WMCHS) with rectangular cross-section with various wavy amplitudes ranged from 125 to 500. μm is numerically investigated. This investigation covers Reynolds number in the range of 100 to 1000. The three-dimensional steady, laminar flow and heat transfer governing equations are solved using the finite-volume method (FVM). The water flow field and heat transfer phenomena inside the heated wavy microchannels is simulated and the results are compared with the straight microchannels. The effect of using a wavy flow channel on the MCHS thermal performance, the pressure drop, the friction factor, and wall shear stress is reported in this article. It is found that the heat transfer performance of the wavy microchannels is much better than the straight microchannels with the same cross-section. The pressure drop penalty of the wavy microchannels is much smaller than the heat transfer enhancement achievement. Both friction factor and wall shear stress are increased proportionally as the amplitude of wavy microchannels increased.
AB - In this paper, heat transfer and water flow characteristics in wavy microchannel heat sink (WMCHS) with rectangular cross-section with various wavy amplitudes ranged from 125 to 500. μm is numerically investigated. This investigation covers Reynolds number in the range of 100 to 1000. The three-dimensional steady, laminar flow and heat transfer governing equations are solved using the finite-volume method (FVM). The water flow field and heat transfer phenomena inside the heated wavy microchannels is simulated and the results are compared with the straight microchannels. The effect of using a wavy flow channel on the MCHS thermal performance, the pressure drop, the friction factor, and wall shear stress is reported in this article. It is found that the heat transfer performance of the wavy microchannels is much better than the straight microchannels with the same cross-section. The pressure drop penalty of the wavy microchannels is much smaller than the heat transfer enhancement achievement. Both friction factor and wall shear stress are increased proportionally as the amplitude of wavy microchannels increased.
UR - http://www.scopus.com/inward/record.url?scp=78650299874&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650299874&partnerID=8YFLogxK
U2 - 10.1016/j.icheatmasstransfer.2010.09.012
DO - 10.1016/j.icheatmasstransfer.2010.09.012
M3 - Article
VL - 38
SP - 63
EP - 68
JO - International Communications in Heat and Mass Transfer
JF - International Communications in Heat and Mass Transfer
SN - 0735-1933
IS - 1
ER -