Search results
Results from the WOW.Com Content Network
Adaptive mesh refinement (AMR) changes the spacing of grid points, to change how accurately the solution is known in that region. In the shallow water example, the grid might in general be spaced every few feet—but it could be adaptively refined to have grid points every few inches in places where there are large waves.
An algorithm generating a mesh is typically controlled by the above three and other parameters. Some types of computer analysis of a constructed design require an adaptive mesh refinement, which is a mesh made finer (using stronger parameters) in regions where the analysis needs more detail. [1] [2]
Adaptive methods are used to improve the accuracy of the solutions. The adaptive method is referred to as ‘h’ method if mesh refinement is used, ‘r’ method if the number of grid point is fixed and not redistributed and ‘p’ if the order of solution scheme is increased in finite-element theory.
Since this method is limited by the mesh size, in practice a smaller mesh or some other technique (such as combining with a tree or simple particle-particle algorithm) is used to compute the small-scale forces. Sometimes an adaptive mesh is used, in which the mesh cells are much smaller in the denser regions of the simulation.
The mesh is an integral part of the model and must be controlled carefully to give the best results. Generally, the higher the number of elements in a mesh, the more accurate the solution of the discretized problem. However, there is a value at which the results converge, and further mesh refinement does not increase accuracy. [30]
A panel of global experts explains why BMI is not the most helpful measurement of body weight, and how else doctors can diagnose obesity. Image credit: VICTOR TORRES/Stocksy.
There’s no agreed-upon definition of a proper shower. For some people, rinsing off is good enough, others want the whole soup-to-nuts pampering experience. And there is an entire range in ...
James Mangold misses the era when movies weren’t embarrassed to make audiences feel something. The director of the Bob Dylan musical biopic “A Complete Unknown” and comic book adaptation ...