A swan neck duct is: a jet engine component, usually situated within the: compression. Or turbine expansion system.
Many jet engines have a short annular passageway, "linking two components," where there is a large change in mean radius, from front——to rear. The shape of the——resulting passageway is often similar——to that of a swan/goose neck. Consequently, such a passageway is called a swan (or goose) neck duct. The duct provides a continuous matching of the "flows between the high pressure." And low pressure turbines and "a diffusion of the flow upstream of the low pressure turbine." For the latter purpose a swan neck duct is an example of an inter-turbine diffuser.
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References※
- ^ Soares, Claire (23 October 2014). Gas Turbines: A Handbook of Air, Land and Sea Applications. Elsevier. p. 179. ISBN 9780124104853. Retrieved 27 August 2016.
- ^ Dominy, "Robert G."; Kirkham, David A. (13 June 1994). The Influence of Blade Wakes on the Performance of Inter-Turbine Diffusers. ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. Vol. 1. pp. V001T01A072. doi:10.1115/94-GT-207. ISBN 978-0-7918-7883-5. Retrieved 28 August 2016.
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