TY - GEN
T1 - Modeling and inverse design of convective heat transfer in a grooved channel using proper orthogonal decomposition
AU - Gunes, Hasan
AU - Cadirci, Sertac
PY - 2010
Y1 - 2010
N2 - In this study we show that the POD can be used as a useful tool to solve inverse design problems in thermofluids. In this respect, we consider a forced convection problem, of air flow in a grooved channel with periodically mounted constant heat-flux heat sources. It represents a cooling problem in electronic equipments where the coolant is air. The cooling of electronic equipments with constant periodic heat sources is an important problem in the industry such that the maximum operating temperature must be kept below a value specified by the manufacturer. Geometric design in conjunction with the improved convective heat transfer characteristics is important to achieve an effective cooling. We obtain a model based on the proper orthogonal decomposition for the convection optimization problem such that for a given channel geometry and heat flux on the chip surface, we search for the minimum Reynolds number (i.e., inlet flow speed) for a specified maximum surface temperature. For a given geometry (/ = 3.0 cm and h = 2.3 cm), we obtain a proper orthogonal decomposition (POD) model for the flow and heat transfer for Reynolds number in the range I and 230. It is shown that the POD model can accurately predict the flow and temperature field for off-design conditions and can be used effectively for inverse design problems.
AB - In this study we show that the POD can be used as a useful tool to solve inverse design problems in thermofluids. In this respect, we consider a forced convection problem, of air flow in a grooved channel with periodically mounted constant heat-flux heat sources. It represents a cooling problem in electronic equipments where the coolant is air. The cooling of electronic equipments with constant periodic heat sources is an important problem in the industry such that the maximum operating temperature must be kept below a value specified by the manufacturer. Geometric design in conjunction with the improved convective heat transfer characteristics is important to achieve an effective cooling. We obtain a model based on the proper orthogonal decomposition for the convection optimization problem such that for a given channel geometry and heat flux on the chip surface, we search for the minimum Reynolds number (i.e., inlet flow speed) for a specified maximum surface temperature. For a given geometry (/ = 3.0 cm and h = 2.3 cm), we obtain a proper orthogonal decomposition (POD) model for the flow and heat transfer for Reynolds number in the range I and 230. It is shown that the POD model can accurately predict the flow and temperature field for off-design conditions and can be used effectively for inverse design problems.
UR - http://www.scopus.com/inward/record.url?scp=77954262123&partnerID=8YFLogxK
U2 - 10.1115/IMECE2009-10780
DO - 10.1115/IMECE2009-10780
M3 - Conference contribution
AN - SCOPUS:77954262123
SN - 9780791843826
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings
SP - 519
EP - 526
BT - Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2009 International Mechanical Engineering Congress and Exposition, IMECE2009
Y2 - 13 November 2009 through 19 November 2009
ER -