Investigation of Liquid Sloshing in Spin-Stabilized Satellites

Abstract

A vorticity, stream function approach has resulted in a formulation and numerical algorithm for the two-dimensional viscous sloshing problem. A key feature of the formulation is the use of a coordinate transformation that maps the fluid body into a fixed geometric shape. The formulation also removes an initial singularity from the governing equations that would otherwise cause the numerical method to diverge. An experimental test rig has been designed and built to study the interaction of the sloshing fluid and spinning structure. The test rig has been instrumented to monitor the motion of several rotating configurations. In addition, a computer simulation model of the test rig is presently under development. Keywords: Coning of satellites, Nutation due to sloshing fluid, Satellite attitudes.

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Document Details

Document Type
Technical Report
Publication Date
Jan 31, 1988
Accession Number
ADA199629

Entities

Organizations

  • Iowa State University

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programs
  • Computer Simulations
  • Computers
  • Coordinate Systems
  • Differential Equations
  • Equations
  • Equations Of Motion
  • Geometry
  • Moment Of Inertia
  • Resonant Frequency
  • Scientific Research
  • Simulations
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Control Systems Engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Satellites
  • Space - Spacecraft Maneuvers