Другие журналы
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Kuz'mina
On the Accuracy of Numerical Schemes for Flow Simulation Around Airfoils with Angle Point
Engineering Education # 02, February 2015 DOI: 10.7463/0215.0756954 pp. 234-249
Estimation of computational complexity of the fast numerical algorithm for calculating vortex influence in the vortex element method
Engineering Education # 10, October 2013 DOI: 10.7463/1013.0604030 In this paper the authors consider a fast numerical algorithm for calculating convective velocities in the vortex element method. This algorithm is based on derivation of a tree of rectangular regions which contain vortex elements. Influence of parameters of the fast method on computational complexity of the algorithm was analyzed. The number of arithmetic operations required for calculating velocities of all vortex elements was evaluated for modeling an evolution of vortex motion in an ideal incompressible liquid. This theoretical estimation is in good agreement with the results of the numerical experiment. The developed approach could be useful in practice because it allows to select optimal values of the algorithm parameters a priori.
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