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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Porous Media
Импакт фактор: 1.752 5-летний Импакт фактор: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
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Journal of Porous Media

DOI: 10.1615/JPorMedia.v20.i7.30
pages 607-618

NUMERICAL STUDY OF POROUS BLUNT NOSECONE TRANSPIRATION COOLING UNDER SUPERSONIC INCOMING FLOW

Yifei Wu
Collaborative Innovation Center of Advanced Aero-Engine, National Key Laboratory of Science and Technology on Aero-Engines, School of Energy and Power Engineering, Beihang University, China; College of Aeronautical Engineering, Civil Aviation University of China, China
Zhengping Zou
Collaborative Innovation Center of Advanced Aero-Engine, National Key Laboratory of Science and Technology on Aero-Engines, School of Energy and Power Engineering, Beihang University, China
Chao Fu
Collaborative Innovation Center of Advanced Aero-Engine, National Key Laboratory of Science and Technology on Aero-Engines, School of Energy and Power Engineering, Beihang University, China
Weihao Zhang
Collaborative Innovation Center of Advanced Aero-Engine, National Key Laboratory of Science and Technology on Aero-Engines, School of Energy and Power Engineering, Beihang University, China

Краткое описание

The study is focused on the porous blunt nosecone transpiration cooling process under supersonic incoming flow conditions using a two-domain approach based on the preconditioned density-based algorithm. The protection mechanism of blunt nosecone transpiration cooling and the effects of coolant injection rate on transpiration cooling performance are discussed. Results indicate that the bowshock is pushed off the wall by coolant injection and the boundary layer becomes thicker. The effect becomes increasingly obvious with increasing injection rate. Transpiration cooling can protect the downstream noncooling wall. With increasing coolant injection rate, the increase in the cooling effect at the leading edge is larger than that at the noncooling area downstream. Transpiration cooling performs better and skin friction is reduced, but the pressure drop for porous domains increases.


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