source:trunk/sample/miscellaneous/FDM/FDM_ss.mso@977

Last change on this file since 977 was 977, checked in by Argimiro Resende Secchi, 6 years ago

examples of finite difference

File size: 1.4 KB
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1#*---------------------------------------------------------------------
2* EMSO Model Library (EML) Copyright (C) 2004 - 2016 ALSOC.
3*
4* This LIBRARY is free software; you can distribute it and/or modify
5* it under the therms of the ALSOC FREE LICENSE as available at
6* http://www.enq.ufrgs.br/alsoc.
7*
8* EMSO Copyright (C) 2004 - 2016 ALSOC, original code
9* from http://www.rps.eng.br Copyright (C) 2002-2004.
11*
13* available at http://www.enq.ufrgs.br/alsoc.
14*
15*----------------------------------------------------------------------
16* Author: Argimiro R. Secchi
17* COPPE/UFRJ - Group of Modeling, Simulation, Control,
18*                               and Optimization of Processes
19* \$Id\$
20*--------------------------------------------------------------------*#
21
22using "FDM";
23
24FlowSheet FDM_ss
25
26        PARAMETERS
27        Da as Real;
28        Pe as Real;
29        m as Real;
30
31        DEVICES
32        #Carregando o modulo de diferencas finitas
33        ex as MDF;
34
35        SET
36        #Especificando o valor de x0
37        ex.xi = 0;
38        #Especificando o valor de xf
39        ex.xf = 1;
40        #Especificando o valor de N
41        ex.N = 20;
42
43        Da = 5;
44        m = 1;
45        Pe = 200;
46
47        EQUATIONS
48        #Equacao do modelo
49        (1/Pe)*ex.dif2x - ex.dif1x - Da*ex.y^m = 0;
50
51        #Especificando as condicoes de contorno
52        #Para x=xf
53        ex.dif1x(ex.N+1)=0;
54
55        #Para x=xi
56        -1/Pe * ex.dif1x(1) = 1 - ex.y(1);
57#       ex.y(1)=1;
58
59        OPTIONS
60        Dynamic = false;
61end
62
63
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