trunk/models/vesselParams.a4c

REQUIRE "atoms.a4l";
(* => atoms.a4l, measures.a4l, system.a4l, basemodel.a4l *)
PROVIDE "vesselParams.a4c";
(*
 * This file is part of the ASCEND Modeling Library and is released
 * under the GNU Public License as described at the end of this file.
 *)

MODEL vessel(
	vessel_vol	"the volume contained within the cylindrical vessel"
		WILL_BE volume;
	wall_thickness	"the thickness of all of the vessel walls"
		WILL_BE distance;
	metal_density	"density of the metal from which the vessel
			 is constructed"
		WILL_BE mass_density;
	H_to_D_ratio	"the ratio of vessel height to diameter"
		WILL_BE factor;
	metal_mass	"the mass of the metal in the walls of the vessel"
		WILL_BE mass;
);

    NOTES
	'author' SELF {Arthur W. Westerberg}
	'creation date' SELF {May, 1998}
    END NOTES;

	(* variables *)
	side_area	"the area of the cylindrical side wall of the vessel",
	end_area	"the area of the flat ends of the vessel"
		IS_A area;

	wall_vol	"the volume of the walls for the vessel"
		IS_A volume;
	H		"the vessel height (of the cylindrical side walls)",
	D		"the vessel diameter"
		IS_A distance;

	(* equations *)
FlatEnds:	end_area = 1{PI} * D^2 / 4;
Sides:		side_area = 1{PI} * D * H;
Cylinder:	vessel_vol = end_area * H;
Metal_volume:	(side_area + 2 * end_area) * wall_thickness = wall_vol;
HD_definition:	D * H_to_D_ratio = H;
VesselMass:	metal_mass = metal_density * wall_vol;

METHODS

METHOD specify;
    NOTES
	'purpose' SELF {to fix four variables and make the problem well-posed}
    END NOTES;
	vessel_vol.fixed	:=	TRUE;
	H_to_D_ratio.fixed	:=	TRUE;
	wall_thickness.fixed	:=	TRUE;
	metal_density.fixed	:=	TRUE;
END specify;

METHOD values;
    NOTES
	'purpose' SELF {to set the values for the fixed variables}
    END NOTES;
	H_to_D_ratio		:=	2;
	vessel_vol		:=	250 {ft^3};
	wall_thickness		:=	5 {mm};
	metal_density		:=	5000 {kg/m^3};
END values;

METHOD bound_self;
END bound_self;

METHOD bound_all;
    RUN bound_self;
END bound_all;

METHOD scale_self;
END scale_self;

METHOD scale_all;
    RUN scale_self;
END scale_all;

METHOD default_self;
	D			:=	1 {m};
	H			:=	1 {m};
END default_self;

METHOD default_all;
    RUN default_self;
	vessel_vol		:=	1 {m^3};
	wall_thickness		:=	5 {mm};
	metal_density		:=	5000 {kg/m^3};
	H_to_D_ratio		:=	1;
END default_all;

END vessel;

ADD NOTES IN vessel;
'description' SELF {This model relates the dimensions of a
	   cylindrical vessel -- e.g., diameter, height and wall thickness
	   to the volume of metal in the walls.  It uses a thin wall
	   assumption -- i.e., that the volume of metal is the area of
	   the vessel times the wall thickness.}
'purpose' SELF {to illustrate the insertion of notes into a model}
END NOTES;


(*
 *  vesselParams.a4c
 *  by Arthur W. Westerberg
 *  Part of the ASCEND Library
 *  $Date: 1998/06/17 19:35:04 $
 *  $Revision: 1.2 $
 *  $Author: mthomas $
 *  $Source: /afs/cs.cmu.edu/project/ascend/Repository/models/vesselParams.a4c,v $
 *
 *  This file is part of the ASCEND Modeling Library.
 *
 *  Copyright (C) 1998  Carnegie Mellon University
 *
 *  The ASCEND Modeling Library is free software; you can redistribute
 *  it and/or modify it under the terms of the GNU General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  The ASCEND Modeling Library is distributed in hope that it will
 *  be useful, but WITHOUT ANY WARRANTY; without even the implied
 *  warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *  See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with the program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139 USA.  Check the
 *  file named COPYING.
 *)
1	REQUIRE "atoms.a4l";
2	(* => atoms.a4l, measures.a4l, system.a4l, basemodel.a4l *)
3	PROVIDE "vesselParams.a4c";
4	(*
5	* This file is part of the ASCEND Modeling Library and is released
6	* under the GNU Public License as described at the end of this file.
7	*)
8
9	MODEL vessel(
10	vessel_vol "the volume contained within the cylindrical vessel"
11	WILL_BE volume;
12	wall_thickness "the thickness of all of the vessel walls"
13	WILL_BE distance;
14	metal_density "density of the metal from which the vessel
15	is constructed"
16	WILL_BE mass_density;
17	H_to_D_ratio "the ratio of vessel height to diameter"
18	WILL_BE factor;
19	metal_mass "the mass of the metal in the walls of the vessel"
20	WILL_BE mass;
21	);
22
23	NOTES
24	'author' SELF {Arthur W. Westerberg}
25	'creation date' SELF {May, 1998}
26	END NOTES;
27
28	(* variables *)
29	side_area "the area of the cylindrical side wall of the vessel",
30	end_area "the area of the flat ends of the vessel"
31	IS_A area;
32
33	wall_vol "the volume of the walls for the vessel"
34	IS_A volume;
35	H "the vessel height (of the cylindrical side walls)",
36	D "the vessel diameter"
37	IS_A distance;
38
39	(* equations *)
40	FlatEnds: end_area = 1{PI} * D^2 / 4;
41	Sides: side_area = 1{PI} * D * H;
42	Cylinder: vessel_vol = end_area * H;
43	Metal_volume: (side_area + 2 * end_area) * wall_thickness = wall_vol;
44	HD_definition: D * H_to_D_ratio = H;
45	VesselMass: metal_mass = metal_density * wall_vol;
46
47	METHODS
48
49	METHOD specify;
50	NOTES
51	'purpose' SELF {to fix four variables and make the problem well-posed}
52	END NOTES;
53	vessel_vol.fixed := TRUE;
54	H_to_D_ratio.fixed := TRUE;
55	wall_thickness.fixed := TRUE;
56	metal_density.fixed := TRUE;
57	END specify;
58
59	METHOD values;
60	NOTES
61	'purpose' SELF {to set the values for the fixed variables}
62	END NOTES;
63	H_to_D_ratio := 2;
64	vessel_vol := 250 {ft^3};
65	wall_thickness := 5 {mm};
66	metal_density := 5000 {kg/m^3};
67	END values;
68
69	METHOD bound_self;
70	END bound_self;
71
72	METHOD bound_all;
73	RUN bound_self;
74	END bound_all;
75
76	METHOD scale_self;
77	END scale_self;
78
79	METHOD scale_all;
80	RUN scale_self;
81	END scale_all;
82
83	METHOD default_self;
84	D := 1 {m};
85	H := 1 {m};
86	END default_self;
87
88	METHOD default_all;
89	RUN default_self;
90	vessel_vol := 1 {m^3};
91	wall_thickness := 5 {mm};
92	metal_density := 5000 {kg/m^3};
93	H_to_D_ratio := 1;
94	END default_all;
95
96	END vessel;
97
98	ADD NOTES IN vessel;
99	'description' SELF {This model relates the dimensions of a
100	cylindrical vessel -- e.g., diameter, height and wall thickness
101	to the volume of metal in the walls. It uses a thin wall
102	assumption -- i.e., that the volume of metal is the area of
103	the vessel times the wall thickness.}
104	'purpose' SELF {to illustrate the insertion of notes into a model}
105	END NOTES;
106
107
108	(*
109	* vesselParams.a4c
110	* by Arthur W. Westerberg
111	* Part of the ASCEND Library
112	* $Date: 1998/06/17 19:35:04 $
113	* $Revision: 1.2 $
114	* $Author: mthomas $
115	* $Source: /afs/cs.cmu.edu/project/ascend/Repository/models/vesselParams.a4c,v $
116	*
117	* This file is part of the ASCEND Modeling Library.
118	*
119	* Copyright (C) 1998 Carnegie Mellon University
120	*
121	* The ASCEND Modeling Library is free software; you can redistribute
122	* it and/or modify it under the terms of the GNU General Public
123	* License as published by the Free Software Foundation; either
124	* version 2 of the License, or (at your option) any later version.
125	*
126	* The ASCEND Modeling Library is distributed in hope that it will
127	* be useful, but WITHOUT ANY WARRANTY; without even the implied
128	* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
129	* See the GNU General Public License for more details.
130	*
131	* You should have received a copy of the GNU General Public License
132	* along with the program; if not, write to the Free Software
133	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check the
134	* file named COPYING.
135	*)