The Canonical Form of Turbomachine Characteristics (Four-Quadrants) and Other Three Port Devices
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Abstract
The performance characteristics of turbomachines with specific speeds between n. =13500 to 810, that include for n. =4200 to 4500 also single- and two-phase flows and variable geometry are
used together with that of the ejector to demonstrate the following: (1) Off-design operating conditions that vary as widely as the Four Quadrant Characteristic can be represented simply and effectively. (2) This simplicity is achieved through performance transformations, identification of "universal" parameters (Suter Form) and especially the canonical form suggested by Paynter. These are shown. (3) The canonical form permits a separation of the performance into
energy dissipation and energy "cross-couplings". (4) It is suggested that the insights gained from presenting measured data in the formats shown here will serve analysts and experimentalists alike. It will also prepare ground for finding the mathematical models required for namic analysis of thermohydraulic systems.
used together with that of the ejector to demonstrate the following: (1) Off-design operating conditions that vary as widely as the Four Quadrant Characteristic can be represented simply and effectively. (2) This simplicity is achieved through performance transformations, identification of "universal" parameters (Suter Form) and especially the canonical form suggested by Paynter. These are shown. (3) The canonical form permits a separation of the performance into
energy dissipation and energy "cross-couplings". (4) It is suggested that the insights gained from presenting measured data in the formats shown here will serve analysts and experimentalists alike. It will also prepare ground for finding the mathematical models required for namic analysis of thermohydraulic systems.
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