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physics.flu-dyn2020★ 24 cited
Multirate Timestepping for the Incompressible Navier-Stokes Equations in Overlapping Grids
Ketan Mittal, Som Dutta, Paul Fischer
We develop a multirate timestepper for semi-implicit solutions of the unsteady incompressible Navier-Stokes equations (INSE) based on a recently-developed multidomain spectral elem…
physics.flu-dyn2019★ 7 cited
Direct Numerical Simulation of Rotating Ellipsoidal Particles using Moving Nonconforming Schwarz-Spectral Element Method
Ketan Mittal, Som Dutta, Paul Fischer
We present application of a highly-scalable overlapping grid-based nonconforming Schwarz-spectral element method (Schwarz-SEM) to study the dynamics of rotating ellipsoidal particl…
physics.flu-dyn2018★ 35 cited
Nonconforming Schwarz-Spectral Element Methods For Incompressible Flow
Ketan Mittal, Som Dutta, Paul Fischer
We present scalable implementations of spectral-element-based Schwarz overlapping (overset) methods for the incompressible Navier-Stokes (NS) equations. Our SEM-based overset grid…