[Faculty] Fwd: [CSRC-SDSU COLLOQUIUM]: Multiple Solutions and Stability of Transonic Flows over Airfoils

[Jose Castillo]

*DATE*:  Friday, November 4th, 2016

*TITLE*: Multiple Solutions and Stability of Transonic Flows over Airfoils

*TIME*:  3:30 PM

*LOCATION*:  GMCS 314

*SPEAKER*:  Dr. Feng Liu. Department of Mechanical and Aerospace
Engineering. University of California, Irvine.


*ABSTRACT*:  After a brief overview of the activities on numerical
simulation of fluid flows at UC Irvine, I will focus on the findings of
multiple numerical solutions for the Transonic Small-Disturbance equation
and the Euler equations. Both symmetric and asymmetric solutions are
possible for a symmetric airfoil at zero angle of attack within a certain
free-stream Mach number range. The stability of the multiple solutions is
analyzed using numerical methods. It is found, the symmetric solutions tend
to be unstable, while the asymmetric solutions are stable. Conjecture of
the relevance of such stability analysis to the intrinsic unsteady behavior
of transonic buffet over airfoils and wings is discussed.

*HOST*:  Dr. Xiaofeng Liu

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SDSU Computational Science Research Center
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Jose E. Castillo  Ph.D.

Director / Professor

Computational Science Research Center

5500 Campanile Dr

San Diego State University

San Diego CA 92182-1245

619 5947205/3430, Fax 619-594-2459

 http://www.csrc.sdsu.edu/mimetic-book/
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