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Coolant passage heat transfer with rotation (Document No: 19890003528)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hajek, T. J. Wagner, J. Johnson, B. V. |
| Copyright Year | 1986 |
| Description | In current and advanced gas turbine engines, increased speeds, pressures and temperatures are used to reduce specific fuel consumption and increase thrust/weight ratios. Hence, the turbine airfoils are subjected to increased heat loads escalating the cooling requirements to satisfy life goals. The efficient use of cooling air requires that the details of local geometry and flow conditions be adequately modeled to predict local heat loads and the corresponding heat transfer coefficients. The objective of this program is to develop a heat transfer and pressure drop data base, computational fluid dynamic techniques and correlations for multi-pass rotating coolant passages with and without flow turbulators. The experimental effort is focused on the simulation of configurations and conditions expected in the blades of advanced aircraft high pressure turbines. With the use of this data base, the effects of Coriolis and buoyancy forces on the coolant side flow can be included in the design of turbine blades. |
| File Size | 500306 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890003528 |
| Archival Resource Key | ark:/13960/t5t779177 |
| Language | English |
| Publisher Date | 1986-10-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Engine Coolants Service Life Computational Fluid Dynamics Temperature Effects Gas Turbine Engines Fuel Consumption Airfoils Heat Transfer Coefficients Thermal Stresses Thrust-weight Ratio Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
