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Design and transition characteristics of a standard model for hypersonic boundary layer transition research

Design and transition characteristics of a standard model for hypersonic boundary layer... To understand fundamental problems in hypersonic laminar-turbulent boundary layer transition for three-dimensional complex vehicles, a new standard model with typical lifting-body features has been proposed, named as hypersonic transition research vehicle (HyTRV). The configuration of HyTRV is fully analytical, and details of the design process are discussed in this study. The transition characteristics for HyTRV are investigated using three combined methods, i.e., theoretical analyses, numerical simulations, and wind tunnel experiments. Results show that the fully analytic parameterization design of HyTRV can satisfy the model simplification requirements from both numerical simulations and wind tunnel experiments. Meanwhile, the flow field of HyTRV reveals typical transition mechanisms in six relatively separated regions, including the streamwise vortex instability, crossflow instability, secondary instability, and attachment-line instability. Therefore, the proposed HyTRV model is valuable for fundamental researches in hypersonic boundary layer transition.Graphic abstractA new standard model with typical lifting-body features for boundary layer transition research has been proposed. Results of three combined analysis methods show that the flow field of HyTRV reveals typical transition mechanisms in six relatively separated regions, including the streamwise vortex instability, crossflow instability, secondary instability, attachment-line instability. Therefore, the proposed HyTRV model is valuable for fundamental researches in hypersonic boundary layer transition.[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Acta Mechanica Sinica" Springer Journals

Design and transition characteristics of a standard model for hypersonic boundary layer transition research

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Publisher
Springer Journals
Copyright
Copyright © The Chinese Society of Theoretical and Applied Mechanics and Springer-Verlag GmbH Germany, part of Springer Nature 2021
ISSN
0567-7718
eISSN
1614-3116
DOI
10.1007/s10409-021-01136-5
Publisher site
See Article on Publisher Site

Abstract

To understand fundamental problems in hypersonic laminar-turbulent boundary layer transition for three-dimensional complex vehicles, a new standard model with typical lifting-body features has been proposed, named as hypersonic transition research vehicle (HyTRV). The configuration of HyTRV is fully analytical, and details of the design process are discussed in this study. The transition characteristics for HyTRV are investigated using three combined methods, i.e., theoretical analyses, numerical simulations, and wind tunnel experiments. Results show that the fully analytic parameterization design of HyTRV can satisfy the model simplification requirements from both numerical simulations and wind tunnel experiments. Meanwhile, the flow field of HyTRV reveals typical transition mechanisms in six relatively separated regions, including the streamwise vortex instability, crossflow instability, secondary instability, and attachment-line instability. Therefore, the proposed HyTRV model is valuable for fundamental researches in hypersonic boundary layer transition.Graphic abstractA new standard model with typical lifting-body features for boundary layer transition research has been proposed. Results of three combined analysis methods show that the flow field of HyTRV reveals typical transition mechanisms in six relatively separated regions, including the streamwise vortex instability, crossflow instability, secondary instability, attachment-line instability. Therefore, the proposed HyTRV model is valuable for fundamental researches in hypersonic boundary layer transition.[graphic not available: see fulltext]

Journal

"Acta Mechanica Sinica"Springer Journals

Published: Oct 20, 2021

Keywords: Hypersonic boundary layer; Transition research; Standard model design; HyTRV

References