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FYI, I submitted an issue here: https://github.com/OpenModelica/OpenMod … ssues/7425
Hi,
I'm simulating pipe networks in OpenModelica 1.18, and I'm getting a CompilerError. I boiled it down to this MWE. Two tanks, connected by two valves, from the Modelica.Fluid library.
Code:
model tanktest
import Modelica.Media.IdealGases.SingleGases.H2;
import Modelica.Fluid.Valves.ValveCompressible;
import Modelica.Fluid.Vessels.ClosedVolume;
import Modelica.Fluid.System;
inner System system;
ClosedVolume buffer( redeclare package Medium = H2, T_start = 300,V = 3,nPorts = 1, p_start = 3e5, use_portsData = false);
ValveCompressible v1( redeclare package Medium = H2, opening = 1, Av = 1e-3, CvData = Modelica.Fluid.Types.CvTypes.Av, m_flow_nominal=1, dp_nominal = 1e5);
ValveCompressible v2(redeclare package Medium = H2,Av = 1e-4, opening = 1, CvData = Modelica.Fluid.Types.CvTypes.Av, m_flow_nominal=1, dp_nominal = 1e5);
ClosedVolume tank( redeclare package Medium = H2,T_start = 300, V = 1,nPorts = 1, p_start = 1e5, use_portsData = false);
equation
connect(buffer.ports[1], v1.port_a);
connect(v1.port_b, v2.port_a);
connect(v2.port_b, tank.ports[1]);
annotation(
uses(Modelica(version = "3.2.3")));
end tanktest;
I get this error during compilation:
Code:
tanktest_12jac.c:31:259: error: use of undeclared identifier '_omcQ_24cse2'
The model works when I connect the two Volumes by just one Valve. Is this a modelling error, or a bug? Is there a restriction in Modelica.Fluid that wouldn't allow me to chain two valves together?
Any help is appreciated. Thanks!
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