Thermal Management of High Power Avionic Blocks: A Numerical Study
Publish place: 10th Conference of Iranian Aerospace Society
Publish Year: 1389
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
AEROSPACE10_328
تاریخ نمایه سازی: 2 اسفند 1390
Abstract:
This study examines the single-phase cooling of avionic blocks, combining the cooling attributes of fans, grills, and heat sinks. To aim this goal, the high-power Clamshell Avionic Module was considered in which air is introduced to the domain through five grills and is exhausted thorough three fans outward the closure. Next, a detailed three-dimensional model of the geometry, considering the heat generated by electrical components as well as the working diagram and pressure drop of the fans and grills, was generated. Further, to model the turbulent airflow inside the domain the k–/ model was implemented. Finally, the model was used to investigate the thermal characteristics of the device. It is shown that the vorticity effects mainly influence the cooling performance inside the zone. In addition, it is deduced that higher jet Reynolds numbers yielded stronger attachment to the heated surface and lower surface temperatures
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Authors
Hadi Amirshaghaghi
PhD Candidate, School of Mechanical Engineering, Faculty of Engineering, University of Tehran
Mohammad Homayunfar
Research Associate, School of Mechanical Engineering, Sharif University of Technology
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