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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/34914

Title: Wall cooling by gaseous injection for a high-performance combustion system
Authors: Sturgess, Geoffrey J.
Issue Date: 1970
Publisher: © Geoffrey John Sturgess
Abstract: The literature is reviewed and the effects of certain aerothermodynamic and geometric parameters on film effectiveness and local heat transfer coefficient are assessed. A difference in form and performance is recognised between the slots commonly used in research work end these used in practice. The developing film is modelled as a transition region preceding a potential core and followed by an asymptotic main region. For practical slots, it is shown that a transition region always exists in the film regardless of the injection velocity ratio; also, that the range of interest consists of the potential core end transition regions alone. A boundary layer theory for effectiveness is developed by taking account of the potential core and the jet-like nature of the real film. The resulting blowing group is tested against eleven very different practical geometry slots and excellent correlation of data is achieved. A universal equation is obtained for practical geometries of this general class. [Continues.]
Description: A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.
Sponsor: Great Britain, Ministry of Aviation (agreement no.: PD/170/06/ADM).
URI: https://dspace.lboro.ac.uk/2134/34914
Appears in Collections:PhD Theses (Aeronautical and Automotive Engineering)

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