The primary focus of this paper is the conjugate heat transfer during vertical impingement of a two-dimensional (slot) submerged confined liquid jet using liquid ammonia as the working fluid. Numerical model for the heat transfer process has been developed. The solid region has been modeled along with the fluid region as a conjugate problem. Discrete heat sources have been used to study the overall effect on convective heat transfer. Simulation of discrete heat sources was done by introducing localized heat fluxes at various locations and their magnitudes being varied. Simulations are performed for two different substrate materials namely silicon and stainless steel. The equations solved in the liquid region included the conservation of mass, conservation of momentum, and conservation of energy. In the solid region, only the energy equation, which reduced to the heat conduction equation, had to be solved. The solid-fluid interface temperature showed a strong dependence on several geometric, fluid flow, and heat transfer parameters. The Nusselt number increased with Reynolds number. For a given flow rate, a higher heat transfer coefficient was obtained with smaller slot width and lower impingement height. For a constant Reynolds number, jet impingement height and plate thickness, a wider opening of the slot provided higher average heat transfer coefficient and higher average Nusselt number. A higher average heat transfer coefficient was seen at a smaller thickness, whereas a thicker plate provided a more uniform distribution of heat transfer coefficient. Higher thermal conductivity substrates also provided a more uniform heat distribution.
Skip Nav Destination
ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
July 17–22, 2005
San Francisco, California, USA
Conference Sponsors:
- Heat Transfer Division and Electronic and Photonic Packaging Division
ISBN:
0-7918-4734-9
PROCEEDINGS PAPER
Confined Liquid Jet Impingement on a Plate With Discrete Heating Elements
Muhammad M. Rahman,
Muhammad M. Rahman
University of South Florida, Tampa, FL
Search for other works by this author on:
Santosh K. Mukka
Santosh K. Mukka
University of South Florida, Tampa, FL
Search for other works by this author on:
Muhammad M. Rahman
University of South Florida, Tampa, FL
Santosh K. Mukka
University of South Florida, Tampa, FL
Paper No:
HT2005-72408, pp. 637-647; 11 pages
Published Online:
March 9, 2009
Citation
Rahman, MM, & Mukka, SK. "Confined Liquid Jet Impingement on a Plate With Discrete Heating Elements." Proceedings of the ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. Heat Transfer: Volume 4. San Francisco, California, USA. July 17–22, 2005. pp. 637-647. ASME. https://doi.org/10.1115/HT2005-72408
Download citation file:
7
Views
Related Proceedings Papers
Related Articles
Coupling Between Heat and Momentum Transfer Mechanisms for Drag-Reducing Polymer and Surfactant Solutions
J. Heat Transfer (November,1999)
Modeling
of Convective Cooling of a Rotating Disk by Partially Confined Liquid Jet
Impingement
J. Heat Transfer (October,2008)
Inverse Determination of Steady Heat Convection Coefficient Distributions
J. Heat Transfer (May,1998)
Related Chapters
Laminar Fluid Flow and Heat Transfer
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine
Radiation
Thermal Management of Microelectronic Equipment