P
Paul Fischer
Researcher at University of Illinois at Urbana–Champaign
Publications - 284
Citations - 9800
Paul Fischer is an academic researcher from University of Illinois at Urbana–Champaign. The author has contributed to research in topics: Reynolds number & Large eddy simulation. The author has an hindex of 48, co-authored 279 publications receiving 8747 citations. Previous affiliations of Paul Fischer include California Institute of Technology & Massachusetts Institute of Technology.
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High-Order Methods for Incompressible Fluid Flow
TL;DR: In this article, the authors present an approach for approximating the Stokes and Navier-Stokes equations for elliptic problems with respect to orthogonal polynomials and discrete transforms.
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An Overlapping Schwarz Method for Spectral Element Solution of the Incompressible Navier-Stokes Equations
TL;DR: A finite element-based additive Schwarz preconditioner using overlapping subdomains plus a coarse grid projection operator which is applied directly to the pressure on the interior Gauss points can yield as much as a fivefold reduction in simulation time over previously employed methods based upon deflation.
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Direct Numerical Simulation of Turbulent Pipe Flow at Moderately High Reynolds Numbers
George K. El Khoury,Philipp Schlatter,Azad Noorani,Paul Fischer,Geert Brethouwer,Arne V. Johansson +5 more
TL;DR: In this paper, a high-order spectral element method was used to study the flow of an incompressible viscous fluid in a smooth circular pipe of radius R and axial length 25R in the turbulent flow regime at four different friction Reynolds numbers Reτ = 180, 360, 550 and 1\text{,}000.
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Wall-induced forces on a rigid sphere at finite Reynolds number
TL;DR: In this article, a spectral element method is employed to perform the simulations of a rigid sphere translating parallel to a flat wall in an otherwise quiescent ambient fluid, and the effect of the wall on the onset of unsteadiness is explored.