Another FLASH simulation gone wrong. More adventures with ram pressure stripping. This time I moved the gas disc inside the computational domain so that the stripped wake would be longer. I also set the density of the initial medium and the inflowing wind to the same value. What I forgot to do was move the gravity... these tests use a fixed analytic potential for the dark matter [I don't remember if we used self-gravity for the gas; we probably did but the dark matter is hugely mass dominant]. So now the disc finds itself not only being blasted by a 1,000 km/s wind but also without having any gravity holding it in place. Oops.
And I rendered it rotating as well this time, just for good measure.
Well if you ever got bored of physics you have a promising career as a VFX artist :)
ReplyDeletebut at least it is a good looking error :)
ReplyDeleteIf something goes wrong with observations, it's years of work down the drain.
ReplyDeleteIf something goes wrong with simulations, it looks pretty and can be re-done in an hour. :)
It still looks pretty cool!
ReplyDelete