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Eric S. G. Shaqfeh - One of the best experts on this subject based on the ideXlab platform.

  • A high-order numerical method to study hypersonic boundary-layer instability including high-temperature Gas effects
    Physics of Fluids, 2011
    Co-Authors: Olaf Marxen, Thierry Magin, Gianluca Iaccarino, Eric S. G. Shaqfeh
    Abstract:

    Prediction of laminar-turbulent transition is a key factor in the design of the heat shield of vehicles (re-)entering a planetary atmosphere. To investigate the transition by means of numerical simulation, accurate and efficient computational methods are necessary. Here, the compressible Navier–Stokes equations are solved for a Gas where properties such as Specific heat, thermal conductivity, viscosity, and Specific Gas Constant depend on one or two thermodynamic variables. Our approach models a mixture of perfect Gases in local thermodynamic equilibrium. The Gas properties are provided either by means of direct calls to a library based on statistical mechanics and kinetic theory or indirectly in the form of look-up tables. In the first part of the paper, our method of handling a high-temperature Gas in thermochemical equilibrium is described and verified. In the second part, the method is applied to the investigation of linear and non-linear boundary-layer instability. We carry out numerical simulations ...

Olaf Marxen - One of the best experts on this subject based on the ideXlab platform.

  • A high-order numerical method to study hypersonic boundary-layer instability including high-temperature Gas effects
    Physics of Fluids, 2011
    Co-Authors: Olaf Marxen, Thierry Magin, Gianluca Iaccarino, Eric S. G. Shaqfeh
    Abstract:

    Prediction of laminar-turbulent transition is a key factor in the design of the heat shield of vehicles (re-)entering a planetary atmosphere. To investigate the transition by means of numerical simulation, accurate and efficient computational methods are necessary. Here, the compressible Navier–Stokes equations are solved for a Gas where properties such as Specific heat, thermal conductivity, viscosity, and Specific Gas Constant depend on one or two thermodynamic variables. Our approach models a mixture of perfect Gases in local thermodynamic equilibrium. The Gas properties are provided either by means of direct calls to a library based on statistical mechanics and kinetic theory or indirectly in the form of look-up tables. In the first part of the paper, our method of handling a high-temperature Gas in thermochemical equilibrium is described and verified. In the second part, the method is applied to the investigation of linear and non-linear boundary-layer instability. We carry out numerical simulations ...

Gianluca Iaccarino - One of the best experts on this subject based on the ideXlab platform.

  • A high-order numerical method to study hypersonic boundary-layer instability including high-temperature Gas effects
    Physics of Fluids, 2011
    Co-Authors: Olaf Marxen, Thierry Magin, Gianluca Iaccarino, Eric S. G. Shaqfeh
    Abstract:

    Prediction of laminar-turbulent transition is a key factor in the design of the heat shield of vehicles (re-)entering a planetary atmosphere. To investigate the transition by means of numerical simulation, accurate and efficient computational methods are necessary. Here, the compressible Navier–Stokes equations are solved for a Gas where properties such as Specific heat, thermal conductivity, viscosity, and Specific Gas Constant depend on one or two thermodynamic variables. Our approach models a mixture of perfect Gases in local thermodynamic equilibrium. The Gas properties are provided either by means of direct calls to a library based on statistical mechanics and kinetic theory or indirectly in the form of look-up tables. In the first part of the paper, our method of handling a high-temperature Gas in thermochemical equilibrium is described and verified. In the second part, the method is applied to the investigation of linear and non-linear boundary-layer instability. We carry out numerical simulations ...

Thierry Magin - One of the best experts on this subject based on the ideXlab platform.

  • A high-order numerical method to study hypersonic boundary-layer instability including high-temperature Gas effects
    Physics of Fluids, 2011
    Co-Authors: Olaf Marxen, Thierry Magin, Gianluca Iaccarino, Eric S. G. Shaqfeh
    Abstract:

    Prediction of laminar-turbulent transition is a key factor in the design of the heat shield of vehicles (re-)entering a planetary atmosphere. To investigate the transition by means of numerical simulation, accurate and efficient computational methods are necessary. Here, the compressible Navier–Stokes equations are solved for a Gas where properties such as Specific heat, thermal conductivity, viscosity, and Specific Gas Constant depend on one or two thermodynamic variables. Our approach models a mixture of perfect Gases in local thermodynamic equilibrium. The Gas properties are provided either by means of direct calls to a library based on statistical mechanics and kinetic theory or indirectly in the form of look-up tables. In the first part of the paper, our method of handling a high-temperature Gas in thermochemical equilibrium is described and verified. In the second part, the method is applied to the investigation of linear and non-linear boundary-layer instability. We carry out numerical simulations ...

A. B. Shigapov - One of the best experts on this subject based on the ideXlab platform.