TURBINE FLOWMETER PERFORMANCE MODEL
Abstract
A complete analytical model and computer program describing the performance of flowmeters in the high Reynolds number regime has been formulated. One of the primary innovations of this model is its capability for describing arbitrary axisymmetric inlet flow fields, in contrast to the flat velocity profiles used in all prior analyses. Other key features of the model are the consideration of finite flow deflection angles by the rotor blades, and the utilization of actual empirical bearing-torque data in the retarding torque formulation. Other well-known effects included in the model are those of manufacturing tolerances; meter temperature; fluid temperature, density, and viscosity; number of blades; blade shape (e.g., flat or helical); preswirler configuration; fluid-drag retarding torque; readout-device retarding torque; type of bearing (ball or journal); etc. The model was intended for use with storable propellants, but would be suitable for cryogenic propellants with little or no modification, providing the pertinent input data were available.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1967
- Accession Number
- AD0825354
Entities
People
- Jerry Grey
- Richard E. Thompson