Application of high-order accurate methods to solve the computational gas dynamics and aeroacoustics problems

Autor:	M. V. Usanin, L. Yu. Gomzikov, V. G. Avgustinovich, A. A. Siner, A. M. Sipatov
Rok vydání:	2011
Předmět:	Turbine blade Numerical analysis Mathematical analysis Aerospace Engineering law.invention Physics::Fluid Dynamics symbols.namesake Flow (mathematics) law Dissipative system Euler's formula symbols Aeroacoustics Dispersion (water waves) Spurious relationship Mathematics
Zdroj:	Russian Aeronautics (Iz VUZ). 54:34-42
ISSN:	1934-7901 1068-7998
DOI:	10.3103/s1068799811010077
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::37ef9159df46494a40c8afdf4d08bb75 https://doi.org/10.3103/s1068799811010077 Zobrazit plný text záznamu Full text from SpringerLink