This example demonstrates the application of the long rod model.
longRod.T[1], longRod.T[2], longRod.T[3]: heat capacitor temperatures of the rod segmentslongRod.shortRod[1].heatCapacitor.port.Q_flow,
longRod.shortRod[2].heatCapacitor.port.Q_flow,
longRod.shortRod[3].heatCapacitor.port.Q_flow: heat flows of into the heat capacitors of the rod segments