Browsing by Author "El-Jummah, Abubakar M."

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Impingement heat transfer : conjugate heat transfer computational fluid dynamics predictions of the influence of reduced crossflow using large gaps

El-Jummah, Abubakar M.; Hussain, Reyad A.A. Abdul; Andrews, Gordon E.; Staggs, John E.J. (HEFAT, 2016)

Experimental and Numerical investigations were carried out on impingement jet cooling, for variable gap to diameter ratio Z/D ranging from 0.76 - 6.42 with varied Z, constant D and constant mass flux G of 1.93 kg/sm2bar, ...
The influence of the relative number of impingement and effusion cooling holes on gas turbine combustor wall heat transfer

El-Jummah, Abubakar M.; Nazari, Ahmad; Andrews, Gordon E.; Staggs, John E.J. (HEFAT, 2017)

The optimization of cooling hole geometry for combined impingement and effusion cooling of gas turbine combustors was investigated. The most common design is for there to be equal number of impingement and effusion holes. ...

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