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Computational methods for free surface flow. 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 ...
In computational fluid dynamics, the volume of fluid (VOF) method is a family of free-surface modelling techniques, i.e. numerical techniques for tracking and locating the free surface (or fluid–fluid interface). They belong to the class of Eulerian methods which are characterized by a mesh that is either stationary or is moving in a certain ...
t. e. Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to analyze and solve problems that involve fluid flows. Computers are used to perform the calculations required to simulate the free-stream flow of the fluid, and the interaction of the fluid (liquids and gases) with surfaces ...
Free-surface modelling. In computational fluid dynamics, free-surface modelling ( FSM) refers to the numerical modelling of a free surface —a freely moving interface between immiscible fluids —in order to be able to track and locate it. Common methods used in free surface modelling include the level-set method and the volume of fluid method .
Schematic view of an SPH convolution Flow around cylinder with free surface modelled with SPH. See [1] for similar simulations.. Smoothed-particle hydrodynamics (SPH) is a computational method used for simulating the mechanics of continuum media, such as solid mechanics and fluid flows.
Hirt is known for having pioneered the volume of fluid method (VOF) for tracking and locating the free surface or fluid-fluid interface. T Hirt [1] [2] left LANL and founded Flow Science in 1980 to develop CFD software for industrial and scientific applications using the VOF method . [3] The company is located in Santa Fe, New Mexico.
The moving particle semi-implicit (MPS) method is a computational method for the simulation of incompressible free surface flows. It is a macroscopic, deterministic particle method (Lagrangian mesh-free method ) developed by Koshizuka and Oka (1996) .
Free surface. In physics, a free surface is the surface of a fluid that is subject to zero parallel shear stress, [1] such as the interface between two homogeneous fluids. [2] An example of two such homogeneous fluids would be a body of water (liquid) and the air in the Earth's atmosphere (gas mixture). Unlike liquids, gases cannot form a free ...