.ThermoPower.PowerPlants.HRSG.Components.PrescribedSpeedPump.flowCharacteristic .ThermoPower.PowerPlants.HRSG.Components.PrescribedSpeedPump.flowCharacteristicfunction flowCharacteristic = ThermoPower.Functions.PumpCharacteristics.quadraticFlow(q_nom = q_nom, head_nom = head_nom);