NDLI: Convection in the tanks of a rotating spacecraft

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Convection in the tanks of a rotating spacecraft

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1972
Description	A general study of convection and mixing of a stratified fluid in a rotating container is described, with application to the special problem of fluid heating and convection in a spacecraft tank. The analysis was based on a set of approximate equations for the Navier-Stokes description of fluid convection with small density variations in a rotating system, including effects of body forces due to temperature stratification (caused by a heater) and arbitrary time-dependent rotation of the tank about a noncentral axis. An efficient numerical finite difference scheme and computational method are described for the convection of vorticity and energy in a two-dimensional tank. Special procedures were developed for analysis of the thermodynamic states resulting from the approximate flow equations derived for small density variations. Results of the numerical simulation are presented for studying the effectiveness of rotation maneuvers in mixing stratified oxygen in the tanks of an Apollo spacecraft. Significant effects of the rotation maneuvers are discussed, including the reduction of the potential for pressure collapse.
File Size	6443669
Page Count	147
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19720019663
Archival Resource Key	ark:/13960/t21c6rc93
Language	English
Publisher Date	1972-06-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics Navier-stokes Equation Mixing Tanks Containers Heating Thermodynamic Properties Convection Apollo Spacecraft Stratified Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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