INTEGRATION OF 2-D FLUID/STRUCTURE COUPLED SYSTEM FOR CALCULATIONS OF TURBOMACHINERY AERODYNAMIC/ AEROELASTIC INSTABILITIES
A numerical approach for calculating self-excited unstable aerodynamic/aeroelastic behaviours in lurbo-machinery blading systems is described. The flow field through a cascade section with multiple blade passages (whole annulus) is governed by the 2-D unsteady Navier-Stokes equations, which are spat...
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| Published in: | International journal of computational fluid dynamics Vol. 3; no. 3-4; pp. 217 - 231 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
Taylor & Francis Group
01.12.1994
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| ISSN: | 1061-8562, 1029-0257 |
| Online Access: | Get full text |
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| Summary: | A numerical approach for calculating self-excited unstable aerodynamic/aeroelastic behaviours in lurbo-machinery blading systems is described. The flow field through a cascade section with multiple blade passages (whole annulus) is governed by the 2-D unsteady Navier-Stokes equations, which are spatially discretized by using a finite volume scheme. The motion of each blade section is governed by simple rigid body spring-mass structural dynamic equations with two degrees of freedom ("bending" and "torsion"). The coupled aeroelastic equations are simultaneously integrated in time by using the 4-stage Runge-Kutta scheme. Examples of calculated results for blade rows with rotating stall and stall Mutter are presented. |
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| ISSN: | 1061-8562 1029-0257 |
| DOI: | 10.1080/10618569408904508 |