Implementing a Harmonic Balance Method about Existing Computational Fluid Dynamic Solvers

Speaker: 
Chad Custer
Date of Seminar: 
Fri, 2008-01-18 12:00
Semester & Year: 
Spring 2008
Seminar Location: 
Hudson Hall Room 207
Seminar Contact(s): 
Elizabeth Irish eri@duke.edu or Justin Jaworski jwj@duke.edu
Special Instructions: 
Lunch and beverages will be served
When studying aeroelasticity one is often primarily interested in the response of the flow field to harmonic motion of a body. The High Dimensional Harmonic Balance (HDHB) Method takes advantage of the temporally periodic nature of the flow field by assuming that the conservation variables can each be accurately represented by a Fourier series in time. It is then possible to recast the governing equations and solve for the Fourier coefficients of the conservation variables. The pseudo-time marching scheme used to solve for the Fourier coefficients of the conservation variables takes the same form as the scheme by which the original governing equations are solved for the steady state case. This research explores converting existing time domain Computational Fluid Dynamics flow solvers to the HDHB method by using the HDHB method as a "wrapper" around the original code.