Journal of Engineering for Gas Turbines and Power · 1984 · 52 citations · 0 references
EngineeringMechanical EngineeringAerodynamicsHeat TransferInternal Combustion EnginesEngine Heat TransferEngine TestingEngine ThermodynamicsHeat Transfer AnalysisHeat Transfer ModelingTurbofan EnginesHeat Flux AnalysisHeat Flux MeasurementHeat Flux PredictionOperating ConditionsShock Tube FlowTurbine OperationTurbine PerformanceTurbine Technology
The experiment’s gasdynamic and physical parameters mimic typical engine operating conditions. The paper reports measurements and analysis of detailed heat‑flux distributions on the nozzle guide vane, rotor, and shroud of the Garrett TFE 731‑2 turbine stage. The study uses a shock tube to generate short‑duration heated air and miniature thin‑film heat‑flux gauges to capture detailed measurements, with a description of the apparatus, measurement procedures, and data‑analysis methods. Results are presented and compared with flat‑plate and STAN5 predictions.
Parts I and II of this paper report the measurements and analysis of detailed heat flux distributions obtained on the nozzle guide vane (NGV), rotor, and shroud of the full-stage rotating turbine of the Garrett TFE 731-2 engine. Part I includes a description of the experimental apparatus, a discussion of the measurements performed and a discussion of the data analysis procedure. Part II is composed of a presentation of experimental conditions, a discussion of results, and comparison of these results with predictions obtained using a flat-plate technique and with predictions obtained using STAN5. The essential features of the measurement program are that a shock tube is used as a short-duration source of heated air and miniature thin-film heat-flux gages are used to obtain detailed measurements on the component parts. The gasdynamic and physical parameters of the experiment are representative of typical engine operating conditions.