.TRANSFORM.HeatExchangers.GenericDistributed_HX_withMass.InternalMassModel_wall .TRANSFORM.HeatExchangers.GenericDistributed_HX_withMass.InternalMassModel_wallmodel InternalMassModel_wall = TRANSFORM.HeatAndMassTransfer.DiscritizedModels.BaseClasses.Dimensions_2.GenericMassGeneration;