mstrip.geo

来自「cfd求解器使用与gmsh网格的求解」· GEO 代码 · 共 58 行

/* -------------------------------------------------------------------
   File "mStrip.geo"

   This file is the geometrical description used by GMSH to produce
   the file "mStrip.msh".
   ------------------------------------------------------------------- */

/* Definition of some parameters for geometrical dimensions, i.e.
   h (height of 'Diel1'), w (width of 'Line'), t (thickness of 'Line')
   xBox (width of the air box) and yBox (height of the air box) */

h = 1.e-3 ; w = 4.72e-3 ;  t = 0.035e-3 ;
xBox = w/2. * 6. ;  yBox = h * 12. ;

/* Definition of parameters for local mesh dimensions */

s = 1. ;
p0 = h / 10. * s ;
pLine0 = w/2. / 10. * s ;  pLine1 = w/2. / 50. * s ;
pxBox = xBox / 10. * s ;  pyBox = yBox / 8. * s ;

/* Definition of gemetrical points */

Point(1) = { 0   , 0, 0, p0} ;
Point(2) = { xBox, 0, 0, pxBox} ;
Point(3) = { xBox, h, 0, pxBox} ;
Point(4) = { 0   , h, 0, pLine0} ;
Point(5) = { w/2., h, 0, pLine1} ;
Point(6) = { 0   , h+t, 0, pLine0} ;
Point(7) = { w/2., h+t, 0, pLine1} ;
Point(8) = { 0   , yBox, 0, pyBox} ;
Point(9) = { xBox, yBox, 0, pyBox} ;

/* Definition of gemetrical lines */

Line(1) = {1,2};   Line(2) = {2,3};  Line(3) = {3,9};
Line(4) = {9,8};   Line(5) = {8,6};  Line(7) = {4,1};
Line(8) = {5,3};   Line(9) = {4,5};  Line(10) = {6,7};
Line(11) = {5,7};

/* Definition of geometrical surfaces */

Line Loop(12) = {8,-2,-1,-7,9};   Plane Surface(13) = {12};
Line Loop(14) = {10,-11,8,3,4,5}; Plane Surface(15) = {14};

/* Definition of Physical entities (surfaces, lines). The Physical
   entities tell GMSH the elements and their associated region numbers
   to save in the file 'mStrip.msh'. For example, the Region 
   111 is made of elements of surface 13, while the Region 121 is 
   made of elements of lines 9, 10 and 11 */

Physical Surface (101) = {15} ;   /* Air */
Physical Surface (111) = {13} ;   /* Diel1 */

Physical Line (120) = {1} ;       /* Ground */
Physical Line (121) = {9,10,11} ; /* Line */
Physical Line (130) = {2,3,4} ;   /* SurfInf */