Transient thermal convection in microgravity
Abstract
The unsteady twodimensional thermal convection in a cylinder due to a transient acceleration solved for a stepfunction excitation. From this, the solution was obtained for an arbitrary timedependent acceleration. The solutions are valied for sufficiently low Rayleigh numbers and therefore, relevant to microgravity fields. As an example, two graphs are presented for he convection resulting from the movement of an astronaut inside the Shuttle. The analysis can be applied to obtain any other convective flows such as those caused by gjitter or variable rotation of the Shuttle.
 Publication:

In NASA. Marshall Space Flight Center Spacecraft Dyn. as Related to Lab. Expt. in Space p 103112 (SEE N8212109 0318
 Pub Date:
 November 1981
 Bibcode:
 1981drle.nasa..103D
 Keywords:

 Convective Flow;
 Free Convection;
 Reduced Gravity;
 Spacecraft Environments;
 Transient Response;
 Acceleration (Physics);
 Cylindrical Bodies;
 NavierStokes Equation;
 Space Commercialization;
 Space Shuttle Orbiters;
 Spaceborne Experiments;
 Time Dependence;
 Fluid Mechanics and Heat Transfer