Journal: Biomimetics

Article Title: A Highly Sensitive Deep-Sea Hydrodynamic Pressure Sensor Inspired by Fish Lateral Line

doi: 10.3390/biomimetics9030190

Figure Lengend Snippet: ( a ) Fluid–structure interaction (FSI) simulation illustrating the distribution of flow fields inside the microchannel and the deformation of the microcantilever; ( b ) Displacement of the cantilever beam corresponding to the four sensing elements (time series data) simulated using the finite element method (FEM) model; ( c ) Displacement amplitude response of the microcantilevers.

Article Snippet: To gain more insight into the piezopotential distribution on the interdigital electrodes, FEM simulations were conducted using the coupled fluid–structure interaction (FSI) module of COMSOL Multiphysics by placing a sensing unit in a water canal.

Techniques:

Journal: bioRxiv

Article Title: Tissue stiffness mapping by light sheet elastography

doi: 10.1101/2023.12.09.570896

Figure Lengend Snippet: (A) Representative position tracking of a fluorescent bead in 1% agarose gel upon 10 Hz actuation. (B and C) 3D rendered phase and amplitude difference submerged in DMEM vs water at 37°C. (D) Fluid-structure interaction simulation model setup. (E) Simulation-predicted damping ratio as a function of the gel extrusion length. (F) Simulation-predicted damping ratio at varying viscosity and culture medium density with an extrusion length of 6.5 mm suggesting predominantly mass damping. (G and H) Simulation -predicted damping ratio at various agarose gel elastic moduli (G) and diameters (H) with an extrusion length of 6.5 mm. (I and J) Angle of rotation along central-boundary axis. (K) Angle of rotation along Y axis. (L) Increased deflection along Y axis. (M) Constant Y phase speed under different actuation frequencies suggesting non-dispersive shear wave propagation along the Y axis.

Article Snippet: To investigate the impact of system parameters (e.g., gel extrusion length) on the damping behavior and the source of DMEM-induced damping (i.e., mass vs. viscous damping), we conducted COMSOL fluid-structure interaction (FSI) simulations.

Techniques: Agarose Gel Electrophoresis, Viscosity, Shear