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Secondary Instabilities of Görtler Vortices in High-Speed Boundary Layers

Mechanisms and Flow Control on Laminar-Turbulent Transition

  • Jie Ren
Book
  • 1.8k Downloads

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xviii
  2. Jie Ren
    Pages 1-14
  3. Jie Ren
    Pages 15-28
  4. Jie Ren
    Pages 29-50
  5. Jie Ren
    Pages 51-72
  6. Jie Ren
    Pages 87-88
  7. Back Matter
    Pages 89-94

About this book

Introduction

This thesis first reveals the mechanism of Görtler instabilities and then demonstrates how transitions at hypersonic flows can be effectively controlled (either promoted or suppressed) with Görtler or Klebanoff modes. It focuses on understanding and controlling flow transitions from mild laminar to fully turbulent flows at high speeds—aspects that have become crucial at the dawn of an incredible era, in which hypersonic vehicles are becoming available. Once this occurs, it will be possible to travel from Beijing to Los Angeles within just 2 hours, and we will all live in a genuinely global village—and not just virtually, but physically.

Görtler instabilities have often been used to promote flow transition in hypersonic vehicles. However, how Görtler instabilities are excited and how they evolve in hypersonic flows are questions that have yet to be answered.

Keywords

Laminar-turbulent transition Hypersonic flows Flow control Flow instability Boundary layer

Authors and affiliations

  • Jie Ren
    • 1
  1. 1.Tsinghua UniversityBeijingChina

Bibliographic information

  • DOI https://doi.org/10.1007/978-981-10-6832-4
  • Copyright Information Springer Nature Singapore Pte Ltd. 2018
  • Publisher Name Springer, Singapore
  • eBook Packages Engineering
  • Print ISBN 978-981-10-6831-7
  • Online ISBN 978-981-10-6832-4
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site
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