Results 31 to 40 of about 5,163 (128)

The occurrence of surface tension gradient discontinuities and zero mobility for Allen-Cahn and curvature flows in periodic media

open access: yes, 2023
We construct several examples related to the scaling limits of energy minimizers and gradient flows of surface energy functionals in heterogeneous media. These include both sharp and diffuse interface models.
Feldman, William M, Morfe, Peter S
core   +1 more source

A Finite Element Method For The Solution Of Mean-Curvature And Related Geometric Flows

open access: yes, 2007
this paper we will consider a finite element method which has been used to study the evolution of two dimensional surfaces in which the points on the surface move with a normal speed dependent on the mean-curvature of the surface at that point.
S. Roberts
core  

Riemannian Mean Curvature Flow

open access: yes, 2008
. In this paper we explicitly derive a level set formulation for mean curvature flow in a Riemannian metric space. This extends the traditional geodesic active contour framework which is based on conformal flows.
Raúl San Joséestépar   +2 more
core  

Enhancement of turbulent flame speed of V-shaped flames in fractal-grid-generated turbulence [PDF]

open access: yes, 2016
A variety of fractal grids is used to investigate how fractal-grid-generated turbulence affects the turbulent flame speed for premixed flames. The grids are placed inside a rectangular duct and a V-shaped flame is stabilized downstream of the duct, using
Verbeek, Antonie Alex   +8 more
core   +1 more source

Bulk properties and flow structures in turbulent flows [PDF]

open access: yes, 2023
Turbulence is ever-present: from flows in engineering, such as a wake behind a submarine, the boundary layer over an aircraft wing, and the swirl in an internal combustion engine, to flows in nature, such as convection in lakes, riffles on rivers and ...
Kumar, Anuj
core  

Processing Elastic Surfaces and Related Gradient Flows [PDF]

open access: yes, 2010
Surface processing tools and techniques have a long history in the fields of computer graphics, computer aided geometric design and engineering.
Olischläger, Nadine
core  

On Total Variation Minimization and Surface Evolution Using Parametric Maximum Flows [PDF]

open access: yes, 2009
In a recent paper Boykov et al. (LNCS, Vol. 3953, pp. 409–422, 2006) propose an approach for computing curve and surface evolution using a variational approach and the geo-cuts method of Boykov and Kolmogorov (International conference on computer vision,
Antonin Chambolle   +3 more
core   +1 more source

The aerodynamics of curved jets and breakaway in Coanda flares [PDF]

open access: yes, 1991
An investigation was carried out into external-Coanda Effect flares designed by British Petroleum International plc. The phenomenon of interest was breakaway of an under expanded axisymmetric curved wall jet from the guiding surface due to high blowing ...
Senior, Peter, Senior, P
core  

An analysis of the destabilizing curvature effects on the turbulent flow over a rotating cylinder

open access: yes, 1999
An analysis based on the available experimental data and second-order closures is made for a turbulent shear flow over a rotating cylinder in a quiescent fluid.
M. Omri, A. Salhi
core   +1 more source

High Order Schemes for Gradient Flows [PDF]

open access: yes, 2020
First, two new classes of energy stable, high order accurate Runge-Kutta schemes for gradient flows in a very general setting are presented: a class of fully implicit methods that are unconditionally energy stable and a class of semi-implicit methods ...
Zaitzeff, Alexander
core  

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