Geodesic
Kinetic BGK model for a crowd: Crowd characterized by a state of equilibrium
Applications of Mathematics, Tome 66 (2021) no. 1, pp. 145-176.

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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.
DOI : 10.21136/AM.2020.0153-19
Classification : 35A01, 35A02, 97M70, 97N40
Keywords: discrete kinetic theory; crowd dynamics; BGK model; semi-Lagrangian schemes 
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El Mousaoui, Abdelghani; Argoul, Pierre; El Rhabi, Mohammed; Hakim, Abdelilah. Kinetic BGK model for a crowd: Crowd characterized by a state of equilibrium. Applications of Mathematics, Tome 66 (2021) no. 1, pp. 145-176. doi : 10.21136/AM.2020.0153-19. http://geodesic.mathdoc.fr/articles/10.21136/AM.2020.0153-19/

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