Monthly Archives: November 2017

分科会「運動論方程式，流体力学とその周辺」（第3回）

日時： 平成29年12月14日（木）　16:30-17:30
場所： 京都大学 桂キャンパスCクラスタ総合研究棟III（C3棟）　3階　b3n03室（航空宇宙工学専攻会議室）
講演： Self-organized pattern formation of run-and-tumble chemotactic bacteria
Prof. Shugo Yasuda (Graduate School of Simulation Studies, University of Hyogo, Japan)
安田　修悟　准教授　（兵庫県立大学 大学院シミュレーション学研究科 シミュレーション学専攻）
要旨： Self-organized pattern formation of run-and-tumble chemotactic bacteria is investigated based on a mesoscopic kinetic chemotaxis model, in which a kinetic transport equation for chemotactic bacteria is coupled with a reaction-diffusion equation for chemical cues. The instability analysis of the kinetic chemotaxis model [1] and the traveling wave analysis of the related flux-limited Keller-Segel system [2] are introduced in this talk. The special focus is put on the multiscale mechanism between the macroscopic pattern formation and individual motions of chemotactic bacteria with stiff response.

References:
[1] B. Perthame, S. Yasuda, “Self-organized pattern formation of run-and-tumble chemotactic bacteria: Instability analysis of a kinetic chemotaxis model”, arXiv: 1703.08386.
[2] V. Calvez, B. Perthame, S. Yasuda, “Traveling wave and aggregation in a flux-limited Keller-Segel model”, arXiv: 1709.07296.