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Aerodynamic analysis of multistage turbomachinery flows in support of aerodynamic design
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Adamczyk, John J. |
| Copyright Year | 1999 |
| Description | This paper summarizes the state of 3D CFD based models of the time average flow field within axial flow multistage turbomachines. Emphasis is placed on models which are compatible with the industrial design environment and those models which offer the potential of providing credible results at both design and off-design operating conditions. The need to develop models which are free of aerodynamic input from semi-empirical design systems is stressed. The accuracy of such models is shown to be dependent upon their ability to account for the unsteady flow environment in multistage turbomachinery. The relevant flow physics associated with some of the unsteady flow processes present in axial flow multistage machinery are presented along with procedures which can be used to account for them in 3D CFD simulations. Sample results are presented for both axial flow compressors and axial flow turbines which help to illustrate the enhanced predictive capabilities afforded by including these procedures in 3D CFD simulations. Finally, suggestions are given for future work on the development of time average flow models. |
| File Size | 3324599 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19990116700 |
| Archival Resource Key | ark:/13960/t9673d11k |
| Language | English |
| Publisher Date | 1999-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Turbocompressors Computational Fluid Dynamics Aerodynamics Turbomachinery Unsteady Flow Design Analysis Navier-stokes Equation Axial Flow Turbines Flow Distribution Mathematical Models Aerodynamic Characteristics Three Dimensional Models Axial Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
