On the thermal analysis of a plate-fin heat sink considering the thermal-entry length effect

On the thermal analysis of a plate-fin heat sink considering the thermal-entry length effect

•Dissipated convective heat strongly depends on convection coefficient. Two correlations were developed for so and validated.•A clear error in air temperature distribution along the heat sink was seen if coefficient were not properly selected.•The error decreases when thermal-entry length effect is...

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Veröffentlicht in:Applied thermal engineering 2016-04, Vol.99, p.273-279
Hauptverfasser: Bassiouny, Ramadan, Maher, Hisham, Hegazy, Adel A.
Format: Artikel
Sprache:eng
Schlagworte:
Air temperature
Cooling
Devices
Fin pitch
Heat sink
Heat sinks
Mathematical models
Plate-Fin
Thermal boundary layer
Thermal engineering
Thermal-entry length
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Zusammenfassung:•Dissipated convective heat strongly depends on convection coefficient. Two correlations were developed for so and validated.•A clear error in air temperature distribution along the heat sink was seen if coefficient were not properly selected.•The error decreases when thermal-entry length effect is considered, as for thermal flow through short conduits as Pr 
ISSN:1359-4311
DOI:10.1016/j.applthermaleng.2015.12.016