THE CHOICE OF A TIME-DEPENDENT TECHNIQUE IN GAS DYNAMICS.
POLYTECHNIC INST OF BROOKLYN FARMINGDALE N Y DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS
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A definition of the word technique, as related to numerical computations of time-dependent problems in gas dynamics, is given. Requirements of accuracy, economy and flexibility are considered. A technique which attempts to satisfy them is presented. Emphasis is put on the consistency of the numerical procedure with the physical problem. The concepts of consistency, convergence and truncation error are reexamined. The advantages of recasting the equations in divergence form are denied. Certain breakdowns in accuracy occurring in regions of continuous flow are explained. The physical role played by discontinuities and its numerical counterpart are discussed. Author
- Numerical Mathematics
- Fluid Mechanics