A numerical jacobian stability solver based on the linearized compressible navier-stokes equations

A. P. Haas, O. M.F. Browne, H. F. Fasel, C. Brehm

Research output: ResearchConference contribution

  • 1 Citations

Abstract

An efficient linearized compressible Navier-Stokes solver has been developed to conduct laminar-turbulent transition predictions in hypersonic flows. Numerical Jacobians are employed to avoid lengthy, error prone derivation and implementation of the stability equations. Combined with a generalized curvilinear implementation, the approach is directly applicable for stability investigations of complex geometries. The governing equations are discretized in time using time-stepping and time-spectral schemes. The time-spectral method allows to efficiently solve time periodic problems by completely bypassing the initial transients that are often not of interest. In this paper, validation results obtained with the time-stepping and time-spectral schemes are presented for an incompressible temporal shear layer, a supersonic spatial shear layer, hypersonic boundary layers on a at plate and cones (straight and ared) and for a biglobal stability analysis of a cylinder wake. Finally, preliminary results for a cone at angle of attack which is susceptible to cross-flow instability are presented.

LanguageEnglish (US)
Title of host publication47th AIAA Fluid Dynamics Conference, 2017
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105005
StatePublished - 2017
Event47th AIAA Fluid Dynamics Conference, 2017 - Denver, United States
Duration: Jun 5 2017Jun 9 2017

Other

Other47th AIAA Fluid Dynamics Conference, 2017
CountryUnited States
CityDenver
Period6/5/176/9/17

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Navier Stokes equations
Cones
Hypersonic boundary layers
Hypersonic flow
Angle of attack
Geometry

ASJC Scopus subject areas

  • Aerospace Engineering
  • Engineering (miscellaneous)

Cite this

Haas, A. P., Browne, O. M. F., Fasel, H. F., & Brehm, C. (2017). A numerical jacobian stability solver based on the linearized compressible navier-stokes equations. In 47th AIAA Fluid Dynamics Conference, 2017 American Institute of Aeronautics and Astronautics Inc, AIAA.

A numerical jacobian stability solver based on the linearized compressible navier-stokes equations. / Haas, A. P.; Browne, O. M.F.; Fasel, H. F.; Brehm, C.

47th AIAA Fluid Dynamics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, 2017.

Research output: ResearchConference contribution

Haas, AP, Browne, OMF, Fasel, HF & Brehm, C 2017, A numerical jacobian stability solver based on the linearized compressible navier-stokes equations. in 47th AIAA Fluid Dynamics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, 47th AIAA Fluid Dynamics Conference, 2017, Denver, United States, 6/5/17.
Haas AP, Browne OMF, Fasel HF, Brehm C. A numerical jacobian stability solver based on the linearized compressible navier-stokes equations. In 47th AIAA Fluid Dynamics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA. 2017.
Haas, A. P. ; Browne, O. M.F. ; Fasel, H. F. ; Brehm, C./ A numerical jacobian stability solver based on the linearized compressible navier-stokes equations. 47th AIAA Fluid Dynamics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, 2017.
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