Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Scott, L Ridgway"'
Autor:
von Wahl, Henry, Scott, L. Ridgway
Publikováno v:
Advances in Computational Science and Engineering, 2024
We consider a test problem for Navier-Stokes solvers based on the flow around a cylinder that exhibits chaotic behavior, to examine the behavior of various numerical methods. We choose a range of Reynolds numbers for which the flow is time-dependent
Externí odkaz:
http://arxiv.org/abs/2404.16798
Autor:
Pollock, Sara, Scott, L. Ridgway
We explore the possibility of simulating the grade-two fluid model in a geometry related to a contraction rheometer, and we provide details on several key aspects of the computation. We show how the results can be used to determine the viscosity $\nu
Externí odkaz:
http://arxiv.org/abs/2404.03450
Autor:
Scott, L. Ridgway, Durst, Rebecca
We study flow around a cylinder from a dynamics perspective, using drag and lift as indicators. We observe that the mean drag coefficient bifurcates from the steady case when the Karman vortex street emerges. We also find a jump in the dimension of t
Externí odkaz:
http://arxiv.org/abs/2311.07698
Autor:
Gjerde, Ingeborg G., Scott, L. Ridgway
We study a technique for verification of stress and pressure computations on boundaries in flow simulations. We utilize existing experiments to provide validation of the simulations. We show that this approach can reveal critical flaws in simulation
Externí odkaz:
http://arxiv.org/abs/2306.12362
Autor:
Scott, L. Ridgway, Tscherpel, Tabea
Publikováno v:
SIAM J. Sci. Comput., 46(2), 2024
We examine the dimensions of various inf-sup stable mixed finite element spaces on tetrahedral meshes in 3D with exact divergence constraints. More precisely, we compare the standard Scott-Vogelius elements of higher polynomial degree and low order m
Externí odkaz:
http://arxiv.org/abs/2301.00185
Publikováno v:
SIAM SISC 46(2):A629-A644 (2024)
In recent years a great deal of attention has been paid to discretizations of the incompressible Stokes equations that exactly preserve the incompressibility constraint. These are of substantial interest because these discretizations are pressure-rob
Externí odkaz:
http://arxiv.org/abs/2211.05494
Autor:
Gjerde, Ingeborg G., Scott, L. Ridgway
d'Alembert's paradox is the contradictory observation that for incompressible and inviscid (potential) fluid flow, there is no drag force experienced by a body moving with constant velocity relative to the fluid. This paradox can be straightforwardly
Externí odkaz:
http://arxiv.org/abs/2204.12240
Autor:
Pollock, Sara, Scott, L. Ridgway
We consider extrapolation of the Arnoldi algorithm to accelerate computation of the dominant eigenvalue/eigenvector pair. The basic algorithm uses sequences of Krylov vectors to form a small eigenproblem which is solved exactly. The two dominant eige
Externí odkaz:
http://arxiv.org/abs/2103.08635
We extend a method (E. Canc\`es and L.R. Scott, SIAM J. Math. Anal., 50, 2018, 381--410) to compute more terms in the asymptotic expansion of the van der Waals attraction between two hydrogen atoms. These terms are obtained by solving a set of modifi
Externí odkaz:
http://arxiv.org/abs/2007.04227