This model validates the implementation of Buildings.Fluid.BaseClasses.FlowModels.basicFlowFunction_m_flow and its second order derivative Buildings.Fluid.BaseClasses.FlowModels.basicFlowFunction_m_flow_der2. If the derivative implementation is wrong, the simulation will stop with an error.
The mass flow rate m_flow is increased non-linearly in order
for the first and second derivatives in
Buildings.Fluid.BaseClasses.FlowModels.basicFlowFunction_m_flow_der2
to be non-zero during part of the simulation. This will ensure
full code coverage of this function.