Free Surface Flows under Compensated Gravity Conditions

  • Michael E. Dreyer

Part of the Springer Tracts in Modern Physics book series (STMP, volume 221)

Table of contents

  1. Front Matter
    Pages I-X
  2. Introduction

    1. Michael E. Dreyer
      Pages 1-3
  3. State of the Art

    1. Front Matter
      Pages I-X
    2. Michael E. Dreyer
      Pages 7-12
    3. Michael E. Dreyer
      Pages 13-15
    4. Michael E. Dreyer
      Pages 17-48
  4. Surface Oscillations upon Step Reduction of the Bond Number

    1. Front Matter
      Pages I-X
    2. Michael E. Dreyer
      Pages 51-55
    3. Michael E. Dreyer
      Pages 57-62
    4. Michael E. Dreyer
      Pages 63-90
    5. Michael E. Dreyer
      Pages 91-100
    6. Michael E. Dreyer
      Pages 101-132
  5. Capillary Rise in Cylindrical Tubes

    1. Front Matter
      Pages I-X
    2. Michael E. Dreyer
      Pages 135-137
    3. Michael E. Dreyer
      Pages 139-143
    4. Michael E. Dreyer
      Pages 145-154
    5. Michael E. Dreyer
      Pages 155-167
    6. Michael E. Dreyer
      Pages 169-170
  6. Critical Velocities in Open Capillary Channel Flows

    1. Front Matter
      Pages I-X
    2. Michael E. Dreyer
      Pages 173-175

About this book

Introduction

This book considers the behavior of fluids in a low-gravity environment with special emphasis on application in PMD (propellant management device) systems . In the compensated gravity environment of a spacecraft, the hydrostatic pressure decreases to very low values depending on the residual acceleration, and surface tension forces become dominant. Consequently, surface tension can be used to transport and position liquids if the residual acceleration and the resulting hydrostatic pressure are small compared to the capillary pressure. One prominent application is the use of PMDs in surface-tension satellite tanks. PMDs must ensure that the tank outlet is covered with liquid whenever outflow is demanded. Furthermore, PMDs are used to ensure expulsion and refilling of tanks for liquids and gases for life support, reactants, and experiment supplies. Since most of the PMD designs are not testable on ground and thus rely on analytical or numerical concepts, this book treats three different flow problems with analytical, numerical and experimental means: the transient contour change between two static surface configurations (free surface oscillations), the capillary rise in tubes (capillary rise), and the flow through open capillary channels (choking). These problems are linked together by the same set of equations and boundary conditions which are necessary to model the fluid behavior, and by the same set of characteristic numbers.

Keywords

Capillary channel flows Compensated gravity environment Free surface flows Liquid management in space Oscillation behavior design environment experiment flow fluid mechanics gravity iron transport

Authors and affiliations

  • Michael E. Dreyer
    • 1
  1. 1.ZARM Center of Applied Space Technology and MicrogravityUniversity of BremenBremen

Bibliographic information

  • DOI https://doi.org/10.1007/3-540-44628-1
  • Copyright Information Springer 2007
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-540-44626-2
  • Online ISBN 978-3-540-44628-6
  • Series Print ISSN 0081-3869
  • Series Online ISSN 1615-0430
  • About this book