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Article Dans Une Revue AIAA Journal Année : 2012

Compact Implementation Strategy for a Harmonic Balance Method within Implicit Flow Solvers

Jeffrey P. Thomas
  • Fonction : Auteur
Chad H. Custer
  • Fonction : Auteur
Earl H. Dowell
  • Fonction : Auteur
Kenneth C. Hall
  • Fonction : Auteur

Résumé

A two-step approximate factorization technique for implementing a computationally stable nonlinear unsteady frequency-domain harmonic balance solution technique within existing implicit computational fluid dynamic flow solver codes is presented. The approach uses an explicit discretization of the harmonic balance source term, and no new implicit code development is required. Both of these features enable the harmonic balance method to be implemented within existing implicit flow solver codes with minimal modification necessary to the underlying flow solver code. The resulting harmonic balance solver can then be used for modeling nonlinear periodic unsteady flows. The methodology is applied to the NASA OVERFLOW flow solver code, and results are presented for transonic viscous flow past an unsteady pitching airfoil section.
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Dates et versions

hal-00736774 , version 1 (29-09-2012)

Identifiants

  • HAL Id : hal-00736774 , version 1

Citer

Jeffrey P. Thomas, Chad H. Custer, Earl H. Dowell, Kenneth C. Hall, Christophe Eric Corre. Compact Implementation Strategy for a Harmonic Balance Method within Implicit Flow Solvers. AIAA Journal, 2012, pp.1-31. ⟨hal-00736774⟩
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