An insect-inspired micropumping
paradigm: theory and Stokeslets-meshfree computations
Aboelkassem, Virginia Tech
Inspired by microscale internal flow transport phenomena in insect
tracheal networks and their rhythmic wall contractions. We present a
novel bioinspired pumping paradigm that is neither peristaltic nor
belongs to impedance mismatch class of pumping mechanisms. Both
theoretical analysis and Stokeslets-meshfree computational methods
are used to solve for the 2D and 3D viscous flow transport in
several micro-geometries with prescribed moving wall contractions.
This talk focuses more on the numerical side used in this study.
More specically on the singularized Stokeslets-meshfree
computational approach and on the possible regularization techniques
that have been successfully used to solve their emerging
ill-conditioned linear system of equations issue. We include the
results of several experiments based on hybrid regularization
projection-Krylov iterative methods such as GMRES method to solve
the regularized linear system. The computational results conducted
here are used to extend, strengthen and support our bioinspired
pumping paradigm developed in this study.