Results 41 to 50 of about 495 (113)

Polymer stress growth in viscoelastic fluids in oscillating extensional flows with applications to micro-organism locomotion [PDF]

, 2019
Simulations of undulatory swimming in viscoelastic fluids with large amplitude gaits show concentration of polymer elastic stress at the tips of the swimmers.We use a series of related theoretical investigations to probe the origin of these concentrated ...
Guy, Robert D., Thomases, Becca
core   +3 more sources

Generic flow profiles induced by a beating cilium

, 2012
We describe a multipole expansion for the low Reynolds number fluid flows generated by a localized source embedded in a plane with a no-slip boundary condition.
A. Vilfan, A. Vilfan, A.R. Shields, B. Guirao, B.A. Afzelius, C. Brennen, C. Maul, C. Wollin, C.E. Sing, D. Wu, D.J. Smith, D.J. Smith, E. Lauga, E. Lauga, E.M. Gauger, E.M. Purcell, F. Jülicher, G. Kokot, G. Miño, J. Ainley, J. Blake, J. Blake, J. Hussong, J. Kotar, J. Toonder den, J.B. Freund, J.R. Blake, J.R. Colantonio, K. Drescher, M. Vilfan, M. Vilfan, M.T. Downton, N. Coq, N. Darnton, N. Hirokawa, N. Osterman, N. Uchida, N. Uchida, P. Lenz, P. Marmottant, R. Golestanian, R. Johnson, S. Gueron, S. Gueron, S.N. Khaderi, W. Supatto   +45 more
core   +1 more source

Biological Fluid Mechanics Under the Microscope: A Tribute to John Blake

, 2018
John Blake (1947--2016) was a leader in fluid mechanics, his two principal areas of expertise being biological fluid mechanics on microscopic scales and bubble dynamics. He produced leading research and mentored others in both Australia, his home country,
Smith, David J.
core   +1 more source

Methods for suspensions of passive and active filaments

, 2020
Flexible filaments and fibres are essential components of important complex fluids that appear in many biological and industrial settings. Direct simulations of these systems that capture the motion and deformation of many immersed filaments in ...
Keaveny, E. E., Schoeller, S. F., Townsend, A. K., Westwood, T. A.   +3 more
core   +1 more source

An Explicit Formula for Two-Dimensional Singly-Periodic Regularized Stokeslets Flow Bounded by a Plane Wall

Communications in Computational Physics, 2018
Summary: We derive a closed form expression for the regularized Stokeslet in two space dimensions with periodic boundary conditions in the \(x\)-direction and a solid plane wall at \(y = 0\). To accommodate the no-slip condition on the wall, a system of images for the regularized Stokeslets was used.
Mannan, Forest O., Cortez, Ricardo
openaire   +2 more sources

Weakening accuracy dependence with the regularization parameter in the Method of Regularized Stokeslets

Journal of Computational and Applied Mathematics, 2013
AbstractIn this paper we present a simple modification of the Method of Regularized Stokeslets, which significantly reduces the dependence of the accuracy on the regularization parameter and achieves accurate solutions with low computational effort. Thanks to the modification introduced, the regularization parameter is no longer a free-tuning parameter.
openaire   +1 more source

A general formulation of Bead Models applied to flexible fibers and active filaments at low Reynolds number

, 2015
This contribution provides a general framework to use Lagrange multipliers for the simulation of low Reynolds number fiber dynamics based on Bead Models (BM). This formalism provides an efficient method to account for kinematic constraints. We illustrate,
Climent, Eric, Delmotte, Blaise, Plouraboue, Franck   +2 more
core   +1 more source

Hydrodynamics of self-propulsion near a boundary: predictions and accuracy of far-field approximations

, 2012
The swimming trajectories of self-propelled organisms or synthetic devices in a viscous fluid can be altered by hydrodynamic interactions with nearby boundaries.
Lauga, Eric, Spagnolie, Saverio E.
core   +1 more source

A nearest-neighbour discretisation of the regularized stokeslet boundary integral equation

Journal of Computational Physics, 2018
22 pages, 2 figures, accepted in Journal of Computational ...
openaire   +2 more sources

Galerkin Method of Regularized Stokeslets for Procedural Fluid Flow with Control Curves

SIGGRAPH Asia 2024 Technical Communications
We present a new procedural incompressible velocity field authoring tool, which lets users design a volumetric flow by directly specifying velocity along control curves. Our method combines the Method of Regularized Stokeslets with Galerkin discretization. Based on the highly viscous Stokes flow assumption, we find the force along a given set of curves
Ryusuke Sugimoto, Jeff Lait, Christopher Batty, Toshiya Hachisuka   +3 more
openaire   +2 more sources