Results 11 to 20 of about 495 (113)
Flagellar Propulsion of Sperm Cells Against a Time‐Periodic Interaction Force
Advanced Biology, Volume 7, Issue 1, January 2023., 2023 Sperm cells undergo complex interactions with external environments, such as a solid‐boundary, fluid flow, as well as other cells before arriving at the fertilization site. Our work presents consistent theoretical and experimental results important for understanding the adaptive behavior of sperm cells to the external time‐periodic force encountered ...
Zihan Wang +5 more
wiley +1 more source
Using Experimentally Calibrated Regularized Stokeslets to Assess Bacterial Flagellar Motility Near a Surface [PDF]
Fluids, 2021 The presence of a nearby boundary is likely to be important in the life cycle and evolution of motile flagellate bacteria. This has led many authors to employ numerical simulations to model near-surface bacterial motion and compute hydrodynamic boundary effects.
Orrin Shindell +4 more
openaire +3 more sources
Highly accurate special quadrature methods for Stokesian particle suspensions in confined geometries
International Journal for Numerical Methods in Fluids, Volume 93, Issue 7, Page 2175-2224, July 2021., 2021 We present a highly accurate boundary integral method for simulation of rigid particles in three‐dimensional periodic Stokes flow with confining walls. Our method includes a special quadrature method based on upsampled quadrature and quadrature by expansion, accelerated using a precomputation scheme.
Joar Bagge, Anna‐Karin Tornberg
wiley +1 more source
Modeling creeping flows in porous media using regularized Stokeslets
Physical Review Fluids, 2022 Flows in porous media in the low Reynolds number regime are often modeled by the Brinkman equations. Analytical solutions to these equations are limited to standard geometries. Finite volume or element schemes can be used in more complicated geometries, but become cumbersome when there are moving boundaries that require frequent remeshing of the domain.
Suraj Kumar Kamarapu +2 more
openaire +2 more sources
2D force constraints in the method of regularized Stokeslets [PDF]
Communications in Applied Mathematics and Computational Science, 2019 33 pages, 9 figures, submitted to Communications in Applied Mathematics and Computational ...
Maxian, Ondrej, Strychalski, Wanda
openaire +4 more sources
The regularized Stokeslets method applied to the three-sphere swimmer model [PDF]
Physics of Fluids, 2021 We investigate the applicability of the Method of Regularized Stokeslets (MRS) in the simulation of micro-swimmers at low Reynolds number. The chosen model for the study is the well-known three linked sphere swimmer. We compare our results with the lattice Boltzmann method, multiparticle collision dynamics, a numerical solution of the Oseen tensor ...
openaire +2 more sources
Method of regularized stokeslets: Flow analysis and improvement of convergence [PDF]
Physical Review Fluids, 2019 32 pages, 7 ...
Zhao, Boan, Lauga, Eric, Koens, Lyndon
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Mixing and transport by ciliary carpets: a numerical study [PDF]
, 2013 We use a 3D computational model to study the fluid transport and mixing due to the beating of an infinite array of cilia. In accord with recent experiments, we observe two distinct regions: a fluid transport region above the cilia and a fluid mixing ...
Ding, Yang +3 more
core +3 more sources
Physics of Rheologically-Enhanced Propulsion: Different Strokes in Generalized Stokes [PDF]
, 2013 Shear-thinning is an important rheological property of many biological fluids, such as mucus, whereby the apparent viscosity of the fluid decreases with shear.
Batchelor G. K. +6 more
core +3 more sources
Regularized Stokeslet segments [PDF]
Journal of Computational Physics, 2018 We present a variation of the method of regularized Stokeslet (MRS) specialized for the case of forces and torques distributed over filaments in three dimensions. The new formulation is based on the exact solution of Stokes equation generated by a linear continuous distribution of regularized forces along a line segment.
openaire +2 more sources