.ThermalSeparation.FilmModel.StructuredPackedColumn.EffectiveDiff.MassTransferCoeffLiq .ThermalSeparation.FilmModel.StructuredPackedColumn.EffectiveDiff.MassTransferCoeffLiqmodel MassTransferCoeffLiq = ThermalSeparation.HeatAndMassTransfer.StructuredPackedColumn.Liquid.RochaStructured;