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Some computational features of two-dimensional problems of gas dynamics on irregular triangular grids

  • I. Numerical Methods of Mathematical Physics
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Abstract

We consider a number of computational features of two-dimensional Lagrangian schemes on triangular grids: loss of approximation near the axis (cylindrical symmetry) and measures to counteract this effect; approximation and operator interpretation at corner points where the type of the boundary conditions changes; loss of stability with free approximation of type II boundary conditions; distortion of the Lagrangian grid associated with first-order accuracy on the boundary of an irregular grid.

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Literature Cited

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Authors
  1. N. V. Ardelyan
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  2. K. V. Kosmachevskii
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  3. S. V. Chernigovskii
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Translated from Vychislitel'naya Matematika i Matematicheskoe Obespechenie EVM, pp. 10–20, 1985.

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Ardelyan, N.V., Kosmachevskii, K.V. & Chernigovskii, S.V. Some computational features of two-dimensional problems of gas dynamics on irregular triangular grids. Comput Math Model 1, 5–11 (1990). https://doi.org/10.1007/BF01128303

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  • DOI: https://doi.org/10.1007/BF01128303

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