Application of high-order accurate methods to solve the computational gas dynamics and aeroacoustics problems |
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Authors: | M V Usanin A A Siner A M Sipatov L Yu Gomzikov V G Avgustinovich |
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Institution: | 1.OAO Aviadvigatel’,Perm,Russia |
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Abstract: | The application of the low dissipative high-order accurate scheme for numerical solution of the Euler and Navier-Stokes equations
in the two-dimensional statement is considered. The scheme of calculating space derivatives is the seven-point central-difference
approximation of the fourth order with the coefficients optimized to reduce the dispersion errors. The optimized six-step
Runge-Kutta method is used for evaluating the time derivatives. By means of filtration, spurious pulsations are suppressed
and shocks are processed. The results of verifying the calculation scheme realized on the stationary problem of flow around
the model turbine blades are presented. |
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Keywords: | |
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