Air flow dynamics around an aerofoil by the stabilized finite difference method
✍ Scribed by T. Aratani
- Publisher
- Elsevier Science
- Year
- 1992
- Weight
- 758 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0956-0521
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✦ Synopsis
Akstraet--A high performance computing scheme to visualize air flow dynamics around an aerofoil is developed, based on the finite difference method with stabilizing devices. A mass diffusion term is added to the equation of continuity to stabilize the finite difference equation. The time derivative of kinetic energy in the energy balance equation is assumed to be replaced by the time derivative of the pressure, to avoid the tedious iteration for the pressure term. The scheme is applied for two-dimensional compressible flow on an aerofoil in unsteady state. Numerical integration has been executed by a microcomputer with i486DX CPU at 40 MHz, on my compiler, for 200 x 500 mesh nodes, and the result is graphically displayed. The velocity vector pattern shows that the ground effect works to stretch the effective area of the aerofoil.