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Analyses of Turbulence in the Neutrally and Stably Stratified Planetary Boundary Layer

  • Cedrick Ansorge

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xxi
  2. Preliminaries

    1. Front Matter
      Pages 1-1
    2. Cedrick Ansorge
      Pages 3-11
    3. Cedrick Ansorge
      Pages 13-25
  3. Numerics

    1. Front Matter
      Pages 27-27
    2. Cedrick Ansorge
      Pages 29-48
    3. Cedrick Ansorge
      Pages 49-62
    4. Cedrick Ansorge
      Pages 63-72
  4. Physics

    1. Front Matter
      Pages 73-73
    2. Cedrick Ansorge
      Pages 75-95
    3. Cedrick Ansorge
      Pages 97-115
  5. Concluding Remarks

    1. Front Matter
      Pages 141-141
    2. Cedrick Ansorge
      Pages 151-154
  6. Back Matter
    Pages 155-171

About this book

Introduction

This thesis presents a study of strong stratification and turbulence collapse in the planetary boundary layer, opening a new avenue in this field. It is the first work to study all regimes of stratified turbulence in a unified simulation framework without a break in the paradigms for representation of turbulence.

 

To date, advances in our understanding and the parameterization of turbulence in the stable boundary layer have been hampered by difficulties simulating the strongly stratified regime, and the analysis has primarily been based on field measurements. The content presented here changes that paradigm by demonstrating the ability of direct numerical simulation to address this problem, and by doing so to remove the uncertainty of turbulence models from the analysis. Employing a stably stratified Ekman layer as a simplified physical model of the stable boundary layer, the three stratification regimes observed in nature— weakly, intermediately and strongly stratified—are reproduced, and the data is subsequently used to answer key, long-standing questions.

 

The main part of the book is organized in three sections, namely a comprehensive introduction, numerics, and physics. The thesis ends with a clear and concise conclusion that distills specific implications for the study of the stable boundary layer. This structure emphasizes the physical results, but at the same time gives relevance to the technical aspects of numerical schemes and post-processing tools. The selection of the relevant literature during the introduction, and its use along the work appropriately combines literature from two research communities: fluid dynamics, and boundary-layer meteorology. 

Keywords

Stratified Boundary Layer Wall-Bounded Turbulence Strong Stratification Turbulence Collapse Global Intermittency Intermittent Flow; Weak Turbulence Turbulent Ekman Flow

Authors and affiliations

  • Cedrick Ansorge
    • 1
  1. 1.Department Atmosphere in the Earth SystemMax Planck Institute for MeteorologyHamburgGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-45044-5
  • Copyright Information Springer International Publishing AG 2017
  • Publisher Name Springer, Cham
  • eBook Packages Earth and Environmental Science
  • Print ISBN 978-3-319-45043-8
  • Online ISBN 978-3-319-45044-5
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site