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Computational methods for free surface flow information


In physics, a free surface flow is the surface of a fluid flowing that is subjected to both zero perpendicular normal stress and parallel shear stress. This can be the boundary between two homogeneous fluids, like water in an open container and the air in the Earth's atmosphere that form a boundary at the open face of the container.

Computation of free surfaces is complex because of the continuous change in the location of the boundary layer. Conventional methods of computation are insufficient for such analysis. Therefore, special methods are developed for the computation of free surface flows.

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Computational methods for free surface flow

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insufficient for such analysis. Therefore, special methods are developed for the computation of free surface flows. Computation in flows with free and moving...

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Free surface

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Slosh dynamics Riabouchinsky solid Computational methods for free surface flow Water current "Glossary: Free Surface". Interactive Guide. Vishay Measurements...

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Computational fluid dynamics

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methods were first developed to solve the linearized potential equations. Two-dimensional (2D) methods, using conformal transformations of the flow about...

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Volume of fluid method

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In computational fluid dynamics, the volume of fluid (VOF) method is a free-surface modelling technique, i.e. a numerical technique for tracking and locating...

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Flow cytometry

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At that time, absorption methods were still widely favored by other scientists over fluorescence methods. Soon after, flow cytometry instruments were...

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Optical flow

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Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an...

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Fluid dynamics

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of relatively inviscid fluid with a free surface, in which surface gradients are small. Darcy's law is used for flow in porous media, and works with variables...

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Fluid mechanics

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and are best addressed by numerical methods, typically using computers. A modern discipline, called computational fluid dynamics (CFD), is devoted to...

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Computational electromagnetics

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Computational electromagnetics (CEM), computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic...

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Computational aeroacoustics

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Computational aeroacoustics is a branch of aeroacoustics that aims to analyze the generation of noise by turbulent flows through numerical methods. The...

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Hydrogeology

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numerical methods: gridded or discretized methods and non-gridded or mesh-free methods. In the common finite difference method and finite element method (FEM)...

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Meshfree methods

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"Meshfree methods on manifolds for hydrodynamic flows on curved surfaces: A Generalized Moving Least-Squares (GMLS) approach". Journal of Computational Physics...

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Image registration

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transformations. Computational methods for generating such transformation are often called LDDMM which provide flows of diffeomorphisms as the main computational tool...

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Lattice Boltzmann methods

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and Frisch-Hasslacher-Pomeau models), is a class of computational fluid dynamics (CFD) methods for fluid simulation. Instead of solving the Navier–Stokes...

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Skin friction drag

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Nitsche, W.; Thünker, R.; Haberland, C. (1985). A computational Preston tube method. Turbulent shear flows, 4. pp. 261–276. Prandtl, L. (1925). "Bericht uber...

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Surface tension

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Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows objects with...

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Discrete element method

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A discrete element method (DEM), also called a distinct element method, is any of a family of numerical methods for computing the motion and effect of...

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Free energy principle

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S2CID 13912462. Friston, Karl; Ao, Ping (2012). "Free Energy, Value, and Attractors". Computational and Mathematical Methods in Medicine. 2012: 1–27. doi:10.1155/2012/937860...

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Heat sink

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Due to the complex nature of the highly 3D flow in present applications, numerical methods or computational fluid dynamics (CFD) can also be used. This...

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applied mathematics and pure mathematics, machine learning, computational mechanics, computational science, biological imaging, neuroscience, physics, probability...

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Boundary element method

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the modelled surface. However, for many problems boundary element methods are significantly less efficient than volume-discretisation methods (finite element...

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Darcy friction factor formulae

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section of this article is for free surface flow. The approximations elsewhere in this article are not applicable for this type of flow. Before choosing a formula...

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Charge based boundary element fast multipole method

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areas of computational electromagnetics and, in the context of bioelectromagnetism, it provides improvements over the finite element method. Along with...

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Standard step method

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step method (STM) is a computational technique utilized to estimate one-dimensional surface water profiles in open channels with gradually varied flow under...

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