1!
2!     CalculiX - A 3-dimensional finite element program
3!     Copyright (C) 1998-2021 Guido Dhondt
4!
5!     This program is free software; you can redistribute it and/or
6!     modify it under the terms of the GNU General Public License as
7!     published by the Free Software Foundation(version 2);
8!
9!
10!     This program is distributed in the hope that it will be useful,
11!     but WITHOUT ANY WARRANTY; without even the implied warranty of
12!     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13!     GNU General Public License for more details.
14!
15!     You should have received a copy of the GNU General Public License
16!     along with this program; if not, write to the Free Software
17!     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18!
19      subroutine air_valve(node1,node2,nodem,nelem,lakon,kon,ipkon,
20     &        nactdog,identity,ielprop,prop,iflag,v,xflow,f,
21     &        nodef,idirf,df,cp,r,physcon,dvi,numf,set,co,vold,mi,
22     &        ttime,time,iaxial,iplausi)
23!
24!     proprietary
25!
26      implicit none
27!
28      logical identity
29      character*8 lakon(*)
30      character*81 set(*)
31!
32      integer node1,node2,nodem,nelem,kon(*),ipkon(*),nactdog(0:3,*),
33     &  ielprop(*),iflag,nodef(5),idirf(5),numf,mi(*),iaxial,
34     &  iplausi
35!
36      real*8 prop(*),v(0:mi(2),*),xflow,f,df(5),cp,r,physcon(*),dvi,
37     &  ttime,time,co(3,*),vold(0:mi(2),*)
38!
39!
40!
41      return
42      end
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