Dispersion and Group Velocity in Numerical Schemes for Three-Dimensional Hydrodynamic Equations

Discrete-Velocity Models and Numerical S

Discrete-Velocity Models and Numerical Schemes for the Boltzmann-BGK Equation in Plane and Axisymmetric Geometries

✍ Luc Mieussens 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 409 KB

We present new numerical models for computing transitional or rarefied gas flows as described by the Boltzmann-BGK and BGK-ES equations. We first propose a new discrete-velocity model, based on the entropy minimization principle. This model satisfies the conservation laws and the entropy dissipation