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Article Dans Une Revue AIAA Journal Année : 2007

Airfoil Shape Optimization for Transonic Flows of Bethe-Zel'dovich-Thompson Fluids

Résumé

High-performance airfoils for transonic flows of Bethe-Zel'dovich-Thompson fluids are constructed using a robust and efficient Euler flow solver coupled with a multi-objective genetic algorithm. Bethe-Zel'dovich- Thompson fluids are characterized by negative values of the fundamental derivative of gasdynamics for a range of temperatures and pressures in the vapor phase, which leads to nonclassical gasdynamic behaviors such as the disintegration of compression shocks. Using Bethe-Zel'dovich-Thompson gases as working fluids may result in low drag exerted on airfoils operating at high transonic speeds, due to a substantial increase in the airfoil critical Mach number. This advantage can be further improved by a proper design of the airfoil shape, also leading to the enlargement of the airfoil operation range within which Bethe-Zel'dovich-Thompson effects are significant. Such a result is of particular interest in view of the exploitation of Bethe-Zel'dovich-Thompson fluids for the development of high-efficiency turbomachinery.
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Dates et versions

hal-00787552 , version 1 (15-02-2013)

Identifiants

  • HAL Id : hal-00787552 , version 1
  • DOI : 10.2514/1.21615
  • ENSAM : http://hdl.handle.net/10985/6776

Citer

Paolo Maria Congedo, Christophe Eric Corre, Paola Cinnella. Airfoil Shape Optimization for Transonic Flows of Bethe-Zel'dovich-Thompson Fluids. AIAA Journal, 2007, pp.1303-1316. ⟨10.2514/1.21615⟩. ⟨hal-00787552⟩
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