I have set up a constant volume gas chamber to model the flow and I'm studying the variation of pressure and temperature within the chamber. I keep getting the following error.
An error occurred while running the simulation and the simulation was terminated Caused by: ['Charged_Cylinder/Solver Configuration']: Initial conditions solve failed to converge. all components and nodal across variables involved Cannot solve for one or more variables, including dynamic variable derivatives: Time derivative of 'Constant_Volume_Chamber_G.p_I' (Pressure of gas volume) 'Constant_Volume_Chamber_G.A.T' (Temperature) 'Constant_Volume_Chamber_G.Phi_A' (Energy flow rate into port A) 'Constant_Volume_Chamber_G.Q_H' (Heat flow rate into port H) 'Constant_Volume_Chamber_G.mdot_A' (Mass flow rate into port A) 'Constant_Volume_Chamber_G.rho_in_A' 'Controlled_Reservoir_G.A.T' (Temperature) 'Controlled_Reservoir_G.Phi_A' (Energy flow rate into port A) 'Controlled_Reservoir_G.mdot_A' (Mass flow rate into port A) 'Controlled_Reservoir_G.rho_in_A' 'Gas_Properties_G.A.T' (Temperature) 'Pressure_Temperature_Sensor_G.A.T' (Temperature) 'Pressure_Temperature_Sensor_G.T' (T)
Problems possible for transient initialization, as well as stepsize control for transient solve, due to equations of one or more components: all components involved 'Charged_Cylinder/Constant Volume Chamber (G)' Equation locations are: 'C:\Program Files\MATLAB\R2017a\toolbox\physmod\simscape\library\m\+foundation\+gas\+elements\constant_volume_chamber.ssc' (line 149) 'C:\Program Files\MATLAB\R2017a\toolbox\physmod\simscape\library\m\+foundation\+gas\+elements\constant_volume_chamber.ssc' (line 72)
'Charged_Cylinder/Controlled Reservoir (G)' Equation locations are: 'C:\Program Files\MATLAB\R2017a\toolbox\physmod\simscape\library\m\+foundation\+gas\+elements\controlled_reservoir.ssc' (line 43) 'C:\Program Files\MATLAB\R2017a\toolbox\physmod\simscape\library\m\+foundation\+gas\+elements\controlled_reservoir.ssc' (line 69)
I think the error is in the thermal reference used for the constant volume chamber. Can someone please confirm this and provide a solution for this problem? Thanks in advance.
