Results 21 to 30 of about 6,106 (173)
Discrete, Circulation-Preserving, and Stable Simplicial Fluids [PDF]
, 2005 Visual quality, low computational cost, and numerical stability are foremost goals in computer animation. An important ingredient in achieving these goals is the conservation of fundamental motion invariants.
Elcott, Sharif Mohamed
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Flow Structure in a Model of Aircraft Trailing Vortices [PDF]
, 2005 We consider a model of incompressible trailing vortices consisting of an array of counter-rotating structures in a doubly periodic domain, infinite in the vertical direction.
Faddy, James Malcolm
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A Dilating Vortex Particle Method for Compressible Flow with Applications to Aeroacoustics [PDF]
, 2002 Vortex methods have become useful tools for the computation of incompressible fluid flow. In the present work, a vortex particle method for the simulation of unsteady two-dimensional compressible flow is developed and applied to several problems.
Eldredge, Jeffrey D.
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A minimization principle for incompressible fluid mechanics
The Physics of Fluids, 2023 Most variational principles in classical mechanics are based on the principle of least action, which is only a stationary principle. In contrast, Gauss' principle of least constraint is a true minimum principle.
H. Taha, Cody Gonzalez, Mohamed Shorbagy
semanticscholar +1 more source
Flows of singular vector fields and applications to fluid and kinetic equations [PDF]
, 2015 Several physical phenomena arising in fluid dynamics and kinetic equations can be modeled by nonlinear transport PDE. Such quantities are the vorticity of a fluid, or the density of a collection of particles advected by a velocity field which is highly ...
Bohun, Anna
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Global and Koopman modes analysis of sound generation in mixing layers [PDF]
, 2013 It is now well established that linear and nonlinear instability waves play a significant role in the noise generation process for a wide variety of shear flows such as jets or mixing layers.
X. Gloerfelt +7 more
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Compact analogs of the models of vortex flows generated by aircraft flight
Aerospace Technic and Technology, 2023 The subject of this work is the development of compact analogs of vortex flows models, which are used in the modeling of vortex structures observed during the flight of an aircraft and the motion of a body in a fluid.
Pavlo Lukianov, L. Song
semanticscholar +1 more source
Linear inviscid damping for shear flows near Couette in the 2D stably stratified regime [PDF]
Indiana University Mathematics Journal, 2020 We investigate the linear stability of shears near the Couette flow for a class of 2D incompressible stably stratified fluids. Our main result consists of nearly optimal decay rates for perturbations of stationary states whose velocities are monotone ...
Roberta Bianchini +2 more
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The effect of slip length on vortex rebound from a rigid boundary
, 2013 The problem of a dipole incident normally on a rigid boundary, for moderate to large Reynolds numbers, has recently been treated numerically using a volume penalisation method by Nguyen van yen, Farge, and Schneider [Phys. Rev.
Dritschel, D.G. +2 more
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Fluids, 2021 In this work, we contribute to the development of numerical algorithms for the direct simulation of three-dimensional incompressible multiphase flows in the presence of multiple fluids and solids. The volume of fluid method is used for interface tracking,
Evgenii L. Sharaborin +2 more
semanticscholar +1 more source