Environment - simulationEnvironment: startTime=0 stopTime=3600 tolerance=1e-06 numberOfIntervals=2500 stepSize=1.44 Regular simulation: ./AixLib_AixLib.Fluid.HeatExchangers.Examples.DryCoilEffectivenessNTUMassFlow -abortSlowSimulation -alarm=480 -s gbode -gbnls=internal -gberr=embedded -gbm=radauIIA3 -lv LOG_STATS LOG_STDOUT | warning | Numerical Jacobians without coloring are currently not supported by GBODE. Colored numerical Jacobian will be used. LOG_SUCCESS | info | The initialization finished successfully without homotopy method. LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 3.0.0/Fluid/HeatExchangers/BaseClasses/PartialEffectivenessNTU.mo:178:5-187:38:writable] | | | | The following assertion has been violated at time 1998.720000 | | | | ((noEvent(hex.m1_flow > (-0.1) * hex.m1_flow_nominal) and noEvent(hex.m2_flow > (-0.1) * hex.m2_flow_nominal))) --> "*** Warning in DryCoilEffectivenessNTUMassFlow.hex: The flow direction reversed. | | | | However, because the constant use_dynamicFlowRegime is set to false, | | | | the model does not change equations based on the actual flow regime. | | | | To switch equations based on the actual flow regime during the simulation, | | | | set the constant use_dynamicFlowRegime=true. | | | | Note that this can lead to slow simulation because of events." LOG_STATS | info | gbode (single-rate integration): radauIIA3 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.00335589s reading init.xml | | | | | | 0.000306085s reading info.xml | | | | | | 8.6883e-05s [ 1.5%] pre-initialization | | | | | | 5.6867e-05s [ 1.0%] initialization | | | | | | 5.571e-06s [ 0.1%] steps | | | | | | 0s [ 0.0%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 2.3359e-05s [ 0.4%] event-handling | | | | | | 0.00119599s [ 20.5%] overhead | | | | | | 0.00446676s [ 76.5%] simulation | | | | | | 0.00583543s [100.0%] total | | | | | events | | | | | | 5 state events | | | | | | 0 time events | | | | | solver: gbode | | | | | | 198 steps taken | | | | | | 1196 calls of functionODE | | | | | | 86 evaluations of jacobian | | | | | | 19 error test failures | | | | | | 6 convergence test failures | | | | | | 4.5393e-05s time of jacobian evaluation LOG_SUCCESS | info | The simulation finished successfully.