.AixLib.Fluid.Movers.Compressors.Utilities.Types.EnginePolynomialModels .AixLib.Fluid.Movers.Compressors.Utilities.Types.EnginePolynomialModelsEnumeration to define polynomial models for calculating engine efficiency
type EnginePolynomialModels = enumeration(JahningEtAl2000 "JahningEtAl2000 - Function of inlet pressure", KinarbEtAl2010 "KinarbEtAl2010 - Function of pressure ratio", DurprezEtAl2007 "DurprezEtAl2007 - Function of pressure ratio", Engelpracht2017 "Engelpracht2017 - Function of pressure ratio and rotational speed");