Unsteady stagnationpoint heat transfer during passage of a concentrated vortex
Abstract
The unsteady boundary layer due to a single rectilinear vortex filament approaching a twodimensional stagnation point is investigated. The unsteady boundarylayer equations are solved by an alternatingdirectionimplicit finitedifference method. Two mechanisms which cause fluctuations in heat transfer are the unsteady velocity field in the boundary layer and secondly, the unsteady total temperature at the edge of the boundary layer. The relative importance of these mechanisms is dependent upon the total temperature fluctuations relative to the imposed temperature difference.
 Publication:

AIAA, 24th Thermophysics Conference
 Pub Date:
 June 1989
 Bibcode:
 1989thph.conf.....R
 Keywords:

 Boundary Layer Equations;
 Boundary Layer Stability;
 Heat Transfer;
 Stagnation Point;
 Vortex Filaments;
 Finite Difference Theory;
 Temperature Distribution;
 Two Dimensional Flow;
 Wall Temperature;
 Fluid Mechanics and Heat Transfer