Numerical simulation for aeroelasticity in turbomachines with vortex method

Wenquan Wu, F. Sisto

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A new method for quantitatively predicting the interaction between the unsteady aerodynamics and structural dynamics was developed. The unsteady flow with large scale separation is simulated numerically with the developed Discrete Vortex Method. In this calculation process, the instantaneous unsteady force and moment of force acting on the blades can be obtained at each time step. On other hand, the cascade is considered as an elasticity system with damping including the effects of the intablade phase angle. The blades are excited to vibrate by the unsteady force and moment. To deal with the above two respects, the resulting code consists of two basic subprograms which exchange their data between each other at every computatimal time step and the non-linear problem is then solved in a time-marching discrete continuation fashion. A series of numerical tests are presented including the parameters studies, such as: effects of the damping, incidence etc. For each case, a large number of computational steps is intended to provide sufficient information about the non-linear behavior of the stall flutter. The applicability of the method is demonstrated numerically.

Original languageEnglish
Title of host publicationManufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General
ISBN (Electronic)9780791878873
DOIs
StatePublished - 1994
EventASME 1994 International Gas Turbine and Aeroengine Congress and Exposition, GT 1994 - The Hague, Netherlands
Duration: 13 Jun 199416 Jun 1994

Publication series

NameProceedings of the ASME Turbo Expo
Volume5

Conference

ConferenceASME 1994 International Gas Turbine and Aeroengine Congress and Exposition, GT 1994
Country/TerritoryNetherlands
CityThe Hague
Period13/06/9416/06/94

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