mesh_tria3.tmpl 2.64 KB
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/**
 * @file This file is part of EDGE.
 *
 * @author Alexander Breuer (anbreuer AT ucsd.edu)
 *
 * @section LICENSE
 * Copyright (c) 2016, Regents of the University of California
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @section DESCRIPTION
 * Simple triangular domain for convergence of the advection equation.
 **/
// optimize mesh
Mesh.Lloyd=5;

// define mesh size
size = 9.424777960769379715387930149838508652591508198125317462924;

// define characteristic length
lc = TEMPLATE_CL;

//
// construct the square
//
Point(1) = { 0,    0,    0, lc };
Point(2) = { size, 0,    0, lc };
Point(3) = { size, size, 0, lc };
Point(4) = { 0,    size, 0, lc };

Line(1) = {1, 2};
Line(2) = {2, 3};
Line(3) = {3, 4};
Line(4) = {4, 1};

Line Loop(101) = { 1, 2, 3, 4};
Plane Surface(201) = {101};

// define volume
Physical Surface("region_0") = {201};

// This is how periodic boundary conditions should be implemented in gmsh
// However moab is not capable of reading them for now. Therefore we use
// a workaround by spcifiying a periodic tag afterwards.
// Remark: This is still needed so that the faces on each side of the periodic boundary match.
Periodic Line {1} = {-3};
Periodic Line {2} = {-4};

// Here's the boundary tag.
Physical Line(106) = {1, 2, 3, 4};