Minimal number of discrete velocities for a flow description and internal structural evolution of a shock wave
- Minimal number of discrete velocities for a flow description and internal structural evolution of a shock wave
- Issue Date
- International journal of non-linear mechanics
- VOL 128, 103633
- A fluid flow is described by fictitious particles hopping on homogeneously distributed nodes with a given finite set of discrete velocities. We emphasize that the existence of a fictitious particle having a discrete velocity among the set in a node is given by a probability. We describe a compressible thermal flow of the level of accuracy of the Navier？Stokes equation by 25 or 33 discrete velocities for two-dimensional space and perform simulations for investigating internal structural evolution of a shock wave.
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