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Keywords:
discrete kinetic theory; crowd dynamics; BGK model; semi-Lagrangian schemes
discrete kinetic theory; crowd dynamics; BGK model; semi-Lagrangian schemes
Summary:
This article focuses on dynamic description of the collective pedestrian motion based on the kinetic model of Bhatnagar-Gross-Krook. The proposed mathematical model is based on a tendency of pedestrians to reach a state of equilibrium within a certain time of relaxation. An approximation of the Maxwellian function representing this equilibrium state is determined. A result of the existence and uniqueness of the discrete velocity model is demonstrated. Thus, the convergence of the solution to that of the continuous BGK equation is proven. Numerical simulations are presented to validate the proposed mathematical model.
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