Dresden 2020 – wissenschaftliches Programm
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BP 9.14: Poster
Montag, 16. März 2020, 17:30–19:30, P2/2OG
Hydrodynamics of a compressible film of active gel — •Li-Shing Lin1 and Hsuan-Yi Chen1,2 — 1Department of Physics, National Central University, Zhongli, Taiwan — 2Institute of Physics, Academia Sinica, Nankang, Taiwan
We construct the hydrodynamic equations for compressible soft active matters forming a film above a solid substrate. This serves as a generic model describing biological systems such as a growing tissue or the lamellipodium of an adherent cell. First, we characterize the hydrodynamic modes of our model and its passive counterpart. Next, we analyze the steady state and linearized dynamics close to it. The relation between the surface relaxation rates and bulk hydrodynamic modes are discussed, and crossover from bulklike (short-wavelength limit) to thin-film-like (long-wavelength limit) behavior is revealed.