Transformation of nonstationary Navier–Stokes equations of a viscous compressible fluid under an arbitrary conformal mapping

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Abstract

It is shown that, the circulation of velocity and fluid flow on any closed or open contour are preserved under an arbitrary conformal mapping of the two-dimensional viscous compressible flow region. The transformed unsteady Navier–Stokes, continuity and heat balance equations, which govern the aerodynamic parameters in the mapped region, are derived.

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About the authors

G. Ya. Dynnikova

Lomonosov Moscow State University

Author for correspondence.
Email: dyn@imec.msu.ru

Research Institute of Mechanics

Russian Federation, Moscow

References

  1. Lavrentyev M.A., Shabat B.V. Methods of the Theory of Functions of Complex Variable. Moscow: Nauka, 1965. (in Russian)
  2. Rabinovich B.I., Tyurin Y.V. Numerical Conformal Mapping in Two-dimensional Hydrodynamics & Related Problems of Electrodynamics and Elasticity Theory. Moscow: Space Res. Inst. of the RAS, 2000. 312 p.
  3. Titova A.A. A Problem of an ideal fluid flow with a singular sink at a depression on the bottom // J. Appl. Ind. Math., 2021, vol. 15, pp. 513–530.
  4. Shamin R.V. Dynamics of an ideal fluid with a free surface in conformal variables // Modern Math. Fundam. Directions, 2008, vol. 28. pp. 3–144. (in Russian)
  5. Dyachenko A.I. On the dynamics of an ideal fluid with a free surface // Dokl. Math., 2001, vol. 63, no. 1, pp. 115–117.
  6. Mizumoto H. A note on the numerical treatment of Navier–Stokes equations. I // J. of the Phys. Soc. of Japan, 1973, vol. 34, no. 5, pp. 1452–1456.
  7. Dynnikova G.Y., Guvernyuk S.V., Demchenko Y.V. et al. An efficient algorithm for calculating boundary elements in vortex methods // Engng. Anal. with Boundary Elements, 2023, vol. 151, pp. 394–399.
  8. Dynnikova G.Y. Calculation of flow around a circular cylinder on the basis of two-dimensional Navier–Stokes equations at large Reynolds numbers with high resolution in a boundary layer // Dokl. Phys., 2008, vol. 53, no. 10, pp. 544–547.
  9. Dynnikova G. Simulation of two-dimensional flow around an elliptical cylinder at high Reynolds numbers // Phys. of Fluids, 2024, vol. 36, no. 023109, pp. 1–6.
  10. Loitsyanskii L.G. Mechanics of Liquids and Gases. Oxford: Pergamon, 1966.

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