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 -