Author: C. W. HaldemanPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Uncertainty Analysis of Turbine Aerodynamic Performance Measurements in Short Duration Test Facilities
Author: C. W. HaldemanTurbine Aerodynamic Performance Measurements in Short Duration Facilities
Author: G. R. GuenetteAerodynamic Performance Measurements in a Transient Turbine Test Facility
Author: Nicholas Robert AtkinsPublisher:
ISBN:
Category : Gas-turbines
Languages : en
Pages : 420
Book Description
ASME Technical Papers
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 574
Book Description
Aerodynamic Performance Measurements of a Fully Scaled, Film-coated, Turbine Stage
Author: Christopher Michael SpadacciniPublisher:
ISBN:
Category :
Languages : en
Pages : 148
Book Description
Paper
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 576
Book Description
An Experimental Investigation of Clocking Effects on Turbine Aerodynamics Using a Modern 3-D One and One-half Stage High Pressure Turbine for Code Verification and Flow Model Development
Author: Charles W. HaldemanPublisher:
ISBN:
Category : Turbines
Languages : en
Pages :
Book Description
Abstract: A modern 1 and 1/2 stage high-pressure (HP) turbine operating at the proper design corrected speed, pressure ratio, and gas to metal temperature ratio is used to generate a detailed data set containing aerodynamic, heat-transfer and aero-performance information. The data was generated using the Ohio State University Gas Turbine Laboratory Turbine Test Facility (TTF), a short-duration shock tunnel facility. The research program utilizes an uncooled turbine stage for which all three airfoils are heavily instrumented at multiple spans and on the HPV and LPV endwalls and HPB platform and tips. Heat-flux and pressure data are obtained using traditional shock-tube and blowdown facility operational modes. The aerodynamic (pressure) data obtained is the same in both modes when the corrected conditions are matched. Various experimental conditions and configurations were performed, including LPV clocking positions, off-design corrected speed conditions, pressure ratio changes, and Reynolds number changes. The main focus of this dissertation is the LPV clocking experiments, where the LPV was clocked relative to the HPV at several different passage locations and at different Reynolds numbers. Various methods were used to evaluate the effect of clocking on both the aeroperformance (efficiency) and aerodynamics (pressure loading) on the LPV, including time-resolved measurements, time-averaged measurements and stage performance measurements. A general improvement in overall efficiency of approximately 2% is demonstrated and could be observed using a variety of independent methods. Maximum efficiency is obtained when the time-average pressures are highest on the LPV, and the time-resolved data both in the time domain and frequency domain show the least amount of variation. The gain in aeroperformance is obtained by integrating over the entire airfoil as the three-dimensional effects on the LPV surface are significant.
NASA SP.
Author: Aeronautical Engineering
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 580
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Author: