@DanFrederiksen The Navier-Stokes equations are solved (with a bug in this example!) on a time-dependent, body conforming grid. You can take a look at my website if you want and download the shape-changing paper on the research page. Best, S.
@SaverioIV but how does it conform. are the cells always squares of increasingly small size to approximate the form or are special non square cells used on the boundary?
@DanFrederiksen The fluid is discretized on a time-dependent grid which maps conformally along with the changing elliptic shape. See: maeresearch.ucsd.edu/spagnolie/SpagnolieShelleyPoF09.pdf , which is one of a few products of this code *after* the bugs were worked out...!
This is a "simulation" :) of a shape-changing body in an initially quiescent flow. The red and blue are supposed to be the fluid vorticity, which should have stayed close to the body, and should have been left-right symmetric. This result *wasn't even close* to correct when I ran this buggy code. But it made for a good laugh.
I am wondering, how do you implement the geometry in the matrix model of the fluid? chopped cells? or is it either or, always complete cells
DanFrederiksen 1 year ago
@DanFrederiksen The Navier-Stokes equations are solved (with a bug in this example!) on a time-dependent, body conforming grid. You can take a look at my website if you want and download the shape-changing paper on the research page. Best, S.
SaverioIV 1 year ago
@SaverioIV but how does it conform. are the cells always squares of increasingly small size to approximate the form or are special non square cells used on the boundary?
DanFrederiksen 1 year ago
@DanFrederiksen The fluid is discretized on a time-dependent grid which maps conformally along with the changing elliptic shape. See: maeresearch.ucsd.edu/spagnolie/SpagnolieShelleyPoF09.pdf , which is one of a few products of this code *after* the bugs were worked out...!
SaverioIV 10 months ago
@SaverioIV dead link... <_<
ertyqwer 6 months ago
Comment removed
emachines34 2 years ago
[Spaceballs] We've gone plaid! [/Spaceballs]
ruxper 2 years ago
Ludicrous speed, go!
SaverioIV 2 years ago
Which way was the flow direction intended to be?
praduk 3 years ago
This is a "simulation" :) of a shape-changing body in an initially quiescent flow. The red and blue are supposed to be the fluid vorticity, which should have stayed close to the body, and should have been left-right symmetric. This result *wasn't even close* to correct when I ran this buggy code. But it made for a good laugh.
SaverioIV 3 years ago