Prediction of turbine cascade flows with a quasi-three-dimensional rotor viscous code and the extension of the algebraic turbulence model.
Hobson, Garth V.
Shreeve, Raymond P.
MetadataShow full item record
A quasi- three-dimensional rotor viscous code is used to predict high subsonic flow through an annular cascade of turbine blades. The well known Baldwin- Lomax turbulence model is used in the program. An attempt was made to implement a new turbulence model, based on renormalization group theory in the program. This was done to improve the prediction of the boundary layer transition on the blade surfaces . and subsequent wake development. The comparison of these two turbulence models with experimental data are presented. Pressure, velocity ratio, flow angle distributions and downstream wake predictions were studied using results from RVCQ3D (Rotor Viscous Code Quasi -Three -Dimensional) code. The computed results showed good agreement with experiment when comparing the blade surface local static pressure to inlet total pressure ratio at the midspan position of the annular turbine cascade. The computational approach used to implement the turbulence model is also described.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Corley, M.S.; Santiago, F.; T. Martinez; Agrawal, B.N. (2011);The Navy is interested in horizontal laser propagation studies in a maritime environment, near the ocean surface, for applications including imaging and high-energy laser propagation. The Naval Postgraduate School (NPS) ...
Kuhl, Christopher T. (Monterey California. Naval Postgraduate School, 2006-09);Encounters with turbulence generated by complex topography, convection, or mechanical forcing present a significant threat to military aircraft operations. Properly forecasting the initiation, duration, and intensity of ...
The diurnal cycle of high-frequency temperature variability at 0*, 140*W on seasonal and interannual time scales Brainard, Russell E. (Monterey, California. Naval Postgraduate School, 1994-06);The diurnal cycle of high-frequency temperature fluctuations attributable to turbulence and internal waves in the upper central equatorial Pacific Ocean is found to persist over most of the period November 1983 - October ...