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Airfoil deposition model
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kohl, F. J. |
| Copyright Year | 1982 |
| Description | The methodology to predict deposit evolution (deposition rate and subsequent flow of liquid deposits) as a function of fuel and air impurity content and relevant aerodynamic parameters for turbine airfoils is developed in this research. The spectrum of deposition conditions encountered in gas turbine operations includes the mechanisms of vapor deposition, small particle deposition with thermophoresis, and larger particle deposition with inertial effects. The focus is on using a simplified version of the comprehensive multicomponent vapor diffusion formalism to make deposition predictions for: (1) simple geometry collectors; and (2) gas turbine blade shapes, including both developing laminar and turbulent boundary layers. For the gas turbine blade the insights developed in previous programs are being combined with heat and mass transfer coefficient calculations using the STAN 5 boundary layer code to predict vapor deposition rates and corresponding liquid layer thicknesses on turbine blades. A computer program is being written which utilizes the local values of the calculated deposition rate and skin friction to calculate the increment in liquid condensate layer growth along a collector surface. |
| File Size | 620655 |
| Page Count | 29 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850002671 |
| Archival Resource Key | ark:/13960/t9867bj37 |
| Language | English |
| Publisher Date | 1982-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Salts Turbine Blades Failure Analysis Gas Turbine Engines Aircraft Engines High Temperature Environments Thermophoresis Mass Transfer Deposition Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
