Abstract
The unsteady laminar flow and forced convection heat transfer have been numerically investigated across the porous square cylinder with the heated cylinder bottom at the axis in the channel changing cylinder-to-channel height ratio of 10%, 30%, and 50%. The other parameters include Reynolds number (50∼250), Darcy number (10-6∼10-2), and porosity (0.4∼0.8). The pressure drops are also examined for the flow past the porous square cylinder in the channels for all cases. The results indicate that the heat transfer for the square porous cylinder is enhanced as cylinder-to-channel height ratio increases; in particular, the enhancement is more obvious for a higher Darcy number and porosity.
| Original language | English |
|---|---|
| Pages (from-to) | 2006-2015 |
| Number of pages | 10 |
| Journal | International Journal of Thermal Sciences |
| Volume | 50 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2011 Oct 1 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Engineering(all)
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Unsteady convection heat transfer for a porous square cylinder varying cylinder-to-channel height ratio. / Perng, Shiang Wuu; Wu, Horng-Wen; Wang, Ren Hung; Jue, Tswen Chyuan.
In: International Journal of Thermal Sciences, Vol. 50, No. 10, 01.10.2011, p. 2006-2015.Research output: Contribution to journal › Article
TY - JOUR
T1 - Unsteady convection heat transfer for a porous square cylinder varying cylinder-to-channel height ratio
AU - Perng, Shiang Wuu
AU - Wu, Horng-Wen
AU - Wang, Ren Hung
AU - Jue, Tswen Chyuan
PY - 2011/10/1
Y1 - 2011/10/1
N2 - The unsteady laminar flow and forced convection heat transfer have been numerically investigated across the porous square cylinder with the heated cylinder bottom at the axis in the channel changing cylinder-to-channel height ratio of 10%, 30%, and 50%. The other parameters include Reynolds number (50∼250), Darcy number (10-6∼10-2), and porosity (0.4∼0.8). The pressure drops are also examined for the flow past the porous square cylinder in the channels for all cases. The results indicate that the heat transfer for the square porous cylinder is enhanced as cylinder-to-channel height ratio increases; in particular, the enhancement is more obvious for a higher Darcy number and porosity.
AB - The unsteady laminar flow and forced convection heat transfer have been numerically investigated across the porous square cylinder with the heated cylinder bottom at the axis in the channel changing cylinder-to-channel height ratio of 10%, 30%, and 50%. The other parameters include Reynolds number (50∼250), Darcy number (10-6∼10-2), and porosity (0.4∼0.8). The pressure drops are also examined for the flow past the porous square cylinder in the channels for all cases. The results indicate that the heat transfer for the square porous cylinder is enhanced as cylinder-to-channel height ratio increases; in particular, the enhancement is more obvious for a higher Darcy number and porosity.
UR - http://www.scopus.com/inward/record.url?scp=79960462673&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79960462673&partnerID=8YFLogxK
U2 - 10.1016/j.ijthermalsci.2011.02.018
DO - 10.1016/j.ijthermalsci.2011.02.018
M3 - Article
AN - SCOPUS:79960462673
VL - 50
SP - 2006
EP - 2015
JO - International Journal of Thermal Sciences
JF - International Journal of Thermal Sciences
SN - 1290-0729
IS - 10
ER -