Study of the two-dimensional unsteady aerodynamic heating of a body
Abstract
A modification of the method of straight lines with cubic-spline approximation of temperature fields in the direction of their major variation is proposed as a method for calculating the two-dimensional heating and ablation of a solid body due to aerodynamic heating. It is shown that if a random number of strips is used, the implementation of the presented numerical algorithm is no more difficult than that of the finite difference method in problems with or without mass transfer, while being more economical. The effects of two-dimensionality are numerically studied for a sphere, characterized by thermophysical parameters typical of metals and graphite, moving in the earth atmosphere. It is concluded that two-dimensionality has a considerable influence on the heating dynamics for sphere radii of less than 0.1 m.
- Publication:
-
Leningradskii Universitet Vestnik Matematika Mekhanika Astronomiia
- Pub Date:
- April 1985
- Bibcode:
- 1985VeLen.......61P
- Keywords:
-
- Ablation;
- Aerodynamic Heating;
- Atmospheric Entry;
- Blunt Bodies;
- Two Dimensional Bodies;
- Unsteady Aerodynamics;
- Algorithms;
- Graphite;
- Mass Transfer;
- Radii;
- Refractory Metals;
- Spheres;
- Spline Functions;
- Temperature Distribution;
- Unsteady Flow;
- Fluid Mechanics and Heat Transfer