Simulations on traveling-plane-wave-based micropumps and microswimmers | Modeling flow-fields and rigid-body kinematics of fully-submerged bio-inspired microsystems with deforming extremities

Publisher

LAP LAMBERT Academic Publishing

Publication Date

2016

Language

English

ISBN 10

365994808X

ISBN 13

9783659948084

Binding

Taschenbuch

Condition

Neu

Dimensions

Weight

155 grams

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About this title

Synopsis

A biologically-inspired micropropulsion method is studied via a series of CFD models managing time-irreversible inextensible wave propagation in a viscous medium. First, pump effect of a fully submerged and anchored thin-film with time-irreversible plane-wave propagation is analyzed by means of resultant channel flow, hydraulic power consumption, and efficiency while performing in a microchannel. Next, propulsion velocity, power consumption and hydrodynamic efficiency of a fully submerged and untethered bio-inspired microswimmer, employing single wave-propagating slender tail, are analyzed with respect to parameterized design variables. All models are governed by dimensionless incompressible Navier-Stokes equations subject to conservation of mass and incorporated with the arbitrary Lagrangian-Eulerian mesh scheme, simultaneously handling moving and stationary boundaries. The resultant rigid-body motion of the swimmer is modeled via incorporating interactions between surrounding viscous fluid and swimmer surface with the rigid-body kinematics, in 3D. Numerical results are compared with the asymptotical results to analytical studies, carried out earlier, based on 2D flow assumptions.

About the Author

Dr. Ahmet Fatih Tabak is a Mechatronics Engineer (BSc 2005, MSc 2007,PhD 2012, Sabanci University) specialized in fluid-structure interactionassociated with bio-inspired and bio-mimicking robots. He was faculty atIstanbul Commerce University, and is currently a post-doctoral fellow atthe Max-Planck Institute for Intelligent Systems, Stuttgart.

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