ESDU 93022 introduces a FORTRAN program (ESDUpac A9322) for ejectors in which the primary and secondary flows are of non-reacting miscible liquids. Inlet conditions for both primary and secondary flows can be either a constant pressure source or provided by a pump. In the latter case@ it is assumed that the head can be expressed as a quadratic in pump speed and flow rate. Two procedures are provided: a Design Procedure and a Performance Prediction Procedure. For Design@ the input is a selection of entry and exit pressures and flow rates@ together with estimates of loss coefficients in the primary and secondary inlets@ mixing duct and diffuser and fluid properties. The program optimises the ejector@ calculating the primary nozzle@ secondary inlet and ejector exit dimensions. For Performance@ the ejector dimensions are input together with the loss coefficients and fluid properties and a range of entry flow conditions; the program calculates flow conditions throughout the ejector and at exit. The equations on which the program is based are fully specified@ the input format required is set out in clear tables@ and two worked examples illustrate the use of the procedures.
ESDU 93022 B-2011 history
2011ESDU 93022 B-2011 Ejectors and jet pumps: computer program for design and performance for liquid flow
2008ESDU 93022 B-2008 Ejectors and jet pumps: computer program for design and performance for liquid flow.