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Analytic adjoint solutions for the quasi-one-dimensional Euler equations

  • MICHAEL B. GILES (a1) and NILES A. PIERCE (a1) (a2)

Abstract

The analytic properties of adjoint solutions are examined for the quasi-one-dimensional Euler equations. For shocked flow, the derivation of the adjoint problem reveals that the adjoint variables are continuous with zero gradient at the shock, and that an internal adjoint boundary condition is required at the shock. A Green's function approach is used to derive the analytic adjoint solutions corresponding to supersonic, subsonic, isentropic and shocked transonic flows in a converging–diverging duct of arbitrary shape. This analysis reveals a logarithmic singularity at the sonic throat and confirms the expected properties at the shock.

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Analytic adjoint solutions for the quasi-one-dimensional Euler equations

  • MICHAEL B. GILES (a1) and NILES A. PIERCE (a1) (a2)

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