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A theoretical investigation of particle motion in an oscillating gas

Citation

Rice, James Orville (1961) A theoretical investigation of particle motion in an oscillating gas. Engineer's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-12212005-154740

Abstract

An investigation is made of the drift motion of small particles under the influence of acoustic oscillations. The investigation is made to determine if the motion has a magnitude great enough to produce significant changes on the fuel distribution in the chamber of a liquid propellant rocket motor. The calculations are made for the motion in both a rectangular and a cylindrical chamber.

In the rectangular chamber the gas oscillation is restricted to the fundamental transverse mode and motion in only one dimension is considered. The particle drift velocity, that is the non-oscillating, non-damped term in the expression for the particle velocity is found in the solution of the second order equation.

For particle motion in the cylindrical enclosure, only gas oscillations in the first transverse or sloshing mode is considered and motion is restricted to a transverse plane of the cylinder. The particle drift velocity, again a second order term, is determined.

The magnitude of the drift velocity is calculated using conditions found in a liquid propellant rocket combustion chamber. Distances a typical fuel droplet would move during its average life time are calculated. The distances are small compared to the size of most rocket combustion chambers.

Item Type:Thesis (Engineer's thesis)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Zukoski, Edward E.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1961
Record Number:CaltechETD:etd-12212005-154740
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-12212005-154740
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5105
Collection:CaltechTHESIS
Deposited By: Imported from ETD-db
Deposited On:22 Dec 2005
Last Modified:26 Dec 2012 03:14

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