Numerical investigation of non-synchronous vibration using scale adaptive simulation turbulence model

Purvic Patel, Hong Sik Im, Gecheng Zha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Non-Synchronous Vibration simulation is carried out for the GE 1-1/2 stage high speed compressor using a hybrid turbulence model. The Scale Adaptive Simulation (SAS) version of Spalart-Allmaras (SA) hybrid turbulence model is used with the Low Diffusion E-CUSP Riemann solver. A 3rd order WENO scheme for the inviscid flux and a 2nd order central differencing scheme for the viscous flux are used in the present study. The predicted NSV frequency is compared with the experimentally measured. The counter rotating tip vortex instability is found to trigger the non-engine order large amplitude vibration. The predicted frequency with the present hybrid turbulence model agrees well with the rig test results.

Original languageEnglish (US)
Title of host publicationAIAA Propulsion and Energy Forum and Exposition, 2019
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105906
DOIs
StatePublished - Jan 1 2019
EventAIAA Propulsion and Energy Forum and Exposition, 2019 - Indianapolis, United States
Duration: Aug 19 2019Aug 22 2019

Publication series

NameAIAA Propulsion and Energy Forum and Exposition, 2019

Conference

ConferenceAIAA Propulsion and Energy Forum and Exposition, 2019
CountryUnited States
CityIndianapolis
Period8/19/198/22/19

ASJC Scopus subject areas

  • Energy(all)
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Mechanical Engineering

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  • Cite this

    Patel, P., Im, H. S., & Zha, G. (2019). Numerical investigation of non-synchronous vibration using scale adaptive simulation turbulence model. In AIAA Propulsion and Energy Forum and Exposition, 2019 (AIAA Propulsion and Energy Forum and Exposition, 2019). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2019-4175