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Calculating pressure fields on the basis of PIV-measurements for supersonic flows

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Thermophysics and Aeromechanics Aims and scope

Abstract

The velocity fields obtained by PIV (Particle Image Velocimetry) in supersonic flows are not sufficient to determine the integral characteristics of the flow. Additional data, for example, on pressure can be obtained from the solution of the Navier−Stokes equations. For incompressible flows, the solution of these equations is not too complicated. However, for supersonic flows, the need to take into account the flow density and the increasing number of experimental errors make it more difficult. This paper proposes a new method for calculating density and pressure from PIV data on the basis of the continuity equation. This method is robust and easy to implement for compressible flows.

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Authors and Affiliations

  1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia

    P. A. Polivanov

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  1. P. A. Polivanov
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Correspondence to P. A. Polivanov.

Additional information

The study was financially supported by the grant of the Russian Foundation for Basic Research (Project No. 18-01- 00536 a).

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Polivanov, P.A. Calculating pressure fields on the basis of PIV-measurements for supersonic flows. Thermophys. Aeromech. 25, 789–792 (2018). https://doi.org/10.1134/S0869864318050153

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  • DOI: https://doi.org/10.1134/S0869864318050153

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