Carl Quillen

Post-doc, Center for Fluid Mechanics, Brown University 

     cbq@cfm.brown.edu, cbq@shore.net  
     13 Kent Square
     Brookline MA 02146
     (617) 731-8036

I graduated in 1987 from Harvard University . It took me until January 1995 to finish my Ph.D. at Brown University. So I may hold the record for the longest (continuously supported) graduate career in the Division of Applied Math. The man who made this possible is Professor Chi-Wang Shu, my long-suffering thesis advisor. I also owe a great deal of thanks to Professor Wai Sun Don, who collaborated with me for much of my thesis research.

My thesis (4Mb gzip'ed postscript)

Right now I'm working for Professor George Karniadakis and Professor Shu to develop a discontinuous Galerkin method using triangular spectral elements.

Some pictures of my daughter Deirdre:

My wife Karen is in some of these too. Careful: this could take some time on a slow link.

Cool Fluid Movies!

These movies are the results of simulations carried out on the AHPCRC Thinking Machines CM5 parallel supercomputer, using a code I rather painfully crafted out of assembly language using the ENO computing method, as developed by Prof. Chi-Wang Shu, Prof. S. Osher and others.

These movies were converted from 4-bit deep gray-scale images, so the quality level may be low. Try "mpeg_play -dither gray" if you are using a unix system. An additional complication seems to be the version of mpeg_encode I used. It may corrupt the first frame.

b2_960.mpg (444k):

This is a 960x480 resolution third order ENO simulation of a Mach 2.0 interaction of a shock wave in air at STP with a hydrogen cylinder. Combustion is modeled with a simple 1-step chemical model. The movie shows a numerical Schlieren images of the simulation up to time 120 microseconds.

b2_960_h20.mpg (38k):

This is the water mass fraction from the previous simulation. Bright areas reflect high density of water.

m2_960.mpg (236k):

This is the same simulation, but combustion has been turned off. The main result is that the vortex takes up considerably less volume, and there is greater net mixing.

stur.mpg (291k):

this is a 496x248 fourth order simulation of a Mach 1.22 interaction with a Helium cylinder. These are numerical Schlieren images.

wave496.mpg (155k):

This is a Mach 2.0 interaction with a sinusoidally perturbed Helium cylinder. This is a fifth order simulation at 496x248 resolution.

wave496f0.mpg (49k):

Helium mass fraction of the previous simulation.