CMS-Flow:Telescoping: Difference between revisions
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== Introduction == | |||
The current CMS computational grid is a non-uniform Cartesian grid which is very easy to setup and offers some degree of refinement. In order to improve the refinement capability, a telescoping mesh will be introduced in SMS 11.0. The telescoping mesh, also referred to as quadtree mesh offers local mesh refinement for the least amount of effort (both computationally and grid generation). Local refinement is achieved by subdividing a rectangular cells into 4 cells. The quadtree mesh can be arranged as block-structured or completely unstructured. In this case it has been arranged as unstructured because it offers the most flexibility. Rectangular (or quadrilateral) meshes are more convenient for establishing high-order schemes and discretizing higher order spatial derivatives. The telescoping mesh offers most of the flexibility of the triangular unstructured mesh with the computational simplicity of the rectangular mesh. | |||
== Examples of Telescoping Grids == | |||
[[Image:packery_tel.PNG|thumb|500px|Packery Channel, TX]] | [[Image:packery_tel.PNG|thumb|500px|Packery Channel, TX]] | ||
[[Image:grays_tel.PNG|thumb|500px| Grays Harbor, WA]] | |||
Revision as of 18:23, 27 November 2009
Under Construction
Introduction
The current CMS computational grid is a non-uniform Cartesian grid which is very easy to setup and offers some degree of refinement. In order to improve the refinement capability, a telescoping mesh will be introduced in SMS 11.0. The telescoping mesh, also referred to as quadtree mesh offers local mesh refinement for the least amount of effort (both computationally and grid generation). Local refinement is achieved by subdividing a rectangular cells into 4 cells. The quadtree mesh can be arranged as block-structured or completely unstructured. In this case it has been arranged as unstructured because it offers the most flexibility. Rectangular (or quadrilateral) meshes are more convenient for establishing high-order schemes and discretizing higher order spatial derivatives. The telescoping mesh offers most of the flexibility of the triangular unstructured mesh with the computational simplicity of the rectangular mesh.
Examples of Telescoping Grids
Contact Information
Alejandro Sanchez, Office: 601-634-2027, Alejandro.Sanchez@usace.army.mil