Skip to Main content Skip to Navigation
Journal articles

Simulation of forced deformable bodies interacting with two-dimensional incompressible flows: Application to fish-like swimming

Abstract : We present an efficient algorithm for simulation of deformable bodies interacting with two-dimensional incompressible flows. The temporal and spatial discretizations of the Navier-Stokes equations in vorticity stream-function formulation are based on classical fourth-order Runge-Kutta and compact finite differences, respectively. Using a uniform Cartesian grid we benefit from the advantage of a new fourth-order direct solver for the Poisson equation to ensure the incompressibility constraint down to machine zero. For introducing a deformable body in fluid flow, the volume penalization method is used. A Lagrangian structured grid with prescribed motion covers the deformable body interacting with the surrounding fluid due to the hydrodynamic forces and moment calculated on the Eulerian reference grid. An efficient law for curvature control of an anguilliform fish, swimming to a prescribed goal, is proposed. Validation of the developed method shows the efficiency and expected accuracy of the algorithm for fish-like swimming and also for a variety of fluid/solid interaction problems.
Complete list of metadatas

Cited literature [40 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00967077
Contributor : Seyed Amin Ghaffari <>
Submitted on : Monday, May 5, 2014 - 7:17:00 PM
Last modification on : Sunday, May 24, 2020 - 1:18:05 PM
Document(s) archivé(s) le : Tuesday, August 5, 2014 - 1:15:11 PM

File

pp_cmp_9.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Seyed Amin Ghaffari, Stéphane Viazzo, Kai Schneider, Patrick Bontoux. Simulation of forced deformable bodies interacting with two-dimensional incompressible flows: Application to fish-like swimming. International Journal of Heat and Fluid Flow, Elsevier, 2015, Theme special issue celebrating the 75th birthdays of Brian Launder and Kemo Hanjalic, 51, pp.88-109. ⟨10.1016/j.ijheatfluidflow.2014.10.023⟩. ⟨hal-00967077v2⟩

Share

Metrics

Record views

402

Files downloads

669