After
several years of planning, the 1st International Workshop on High-Order CFD
Methods was successfully held in Nashville, Tennessee, on January 7 and 8,
2012, just before the 50th Aerospace Sciences Meeting. Over 70
participants from all over the world across the research spectrum of academia,
government labs and private industry attended the Workshop. Many interesting results were presented. The major
findings from the Workshop include:
1. For
problems with smooth solutions and geometries, high-order methods are able to
demonstrate high-order accuracy with h and p-refinement. High-order methods demonstrated
better performance than the 2nd-order finite volume method for both
steady and unsteady problems based on error vs. cost.
2. For
problems with non-smooth solutions or geometries, high-order methods cannot
achieve high-order accuracy as expected. They are comparable to low order
methods in performance.
3. Solution
based hp-adaptations have been shown to be very effective in minimizing the
computational cost to achieve a given level of accuracy.
4. For
RANS simulations, high-order methods are still not as robust as low order
methods in converging to the steady state solution. It is believed that this
behavior is related to non-smoothness introduced in the turbulence models.
If you are interested in doing research on high order methods, the following pacing items may interest you:
1. High-order
mesh generation
2. Solution
based hp-adaptations
3. Scalable,
low memory efficient time integrators for RANS and hybrid RANS/LES approaches
4. Robust,
accuracy-preserving and parameter-free shock capturing
Some of the abstracts of the workshop are contained here:
The next workshop will be held in Cologne, Germany next summer. Check the workshop
web site for updated information.
On a personal note, I will join University of Kansas as the Spahr Professor and Chair of Aerospace Engineering in August 2012. It was a difficult decision, but I do look forward to the new challenges ahead.
