Why does smoke swirl

There is very little turbulence inside fog. It is a region of water droplets carried around in a very large system of turbulence - the Weather. Look at that from above and it's antics are just as involved as you get with curling smoke. I think it's a matter of scale. The difference in the actual shapes formed by weather and smoke columns is probably to do with the effect of the viscosity of the air.

There are very small forces involved with rising cigarette smoke, compared with the viscosity of the air whereas viscosity plays a much smaller part in large air movements. Air flow just doesn't 'scale', which is why bumble bees in flight look so unlikely. It is a matter that the smoke particles only occupy a small volume of the air and clearly indicate details of the general airflow you can see similar effects in the opposite direction by suapending s block of dry ice in still normally humid air and watching the fog descend from it so it is clearly not a significant propery of the nature if the particles.

Learn, create, test and tell evolution rules in all things God says so! I agree; the particles are only indicators of what's going on. One crossed the entire Tasman Sea, the body of water between Australia and New Zealand, according to the study.

In some cases, the modons broke apart when they collided with a continental shelf; in other cases, the scientists couldn't deduce the reason from the available satellite data.

Still, what stood out about these powerful vortices is that they could travel either east or west at up to 7. Rossby waves are waves that naturally result from the Earth's rotation, according to the National Oceanic and Atmospheric Administration.

Sometimes the modons would pivot toward the north or south, strengthening whichever eddy was spinning in that direction and weakening the other before balancing out again, the study found. Khaykin , S. Godin-Beekmann , A. Hauchecorne , J. Pelon , F. Ravetta , and P. Keckhut , : Stratospheric smoke with unprecedentedly high backscatter observed by lidars above southern France. Earth Environ. Kuhl , D. Rosmond , C. Bishop , J. McLay , and N. Laprise , R. Manney , G. Livesey , C.

Jimenez , H. Pumphrey , M. Santee , I. MacKenzie , and J. McCormack , J. McLay , J. Bishop , and C. Reynolds , : Evaluation of the ensemble transform analysis perturbation scheme at NRL. Ohneiser , K. Orsolini , Y. Peterson , D. Campbell , E. Hyer , M. Fromm , G. Kablick , J. Cossuth , and M. DeLand , : Wildfire-driven thunderstorms cause a volcano-like stratospheric injection of smoke. Hyer , J. Campbell , M. Fromm , C. Bennese , M. Berman , and T. Van , : Quantifying the impact of intense pyroconvection on stratospheric aerosol loading.

Pumphrey , H. Santee , N. Livesy , M. Schwartz , and W. Read , : Microwave Limb Sounder observations of biomass-burning products from the Australian bush fires of February Rosmond , T.

Huret , Y. Orsolini , A. Hauchecorne , and M. Drouin , : Frozen-in anticyclones occurring in polar Northern Hemisphere during springtime: Characterization, occurrence and link with quasi-biennial oscillation.

Torres , O. Rosmond , and R. The pyroCbs from 29 December to 4 January were particularly intense, producing hemispheric-wide aerosol that persisted for months. This plume initially moved eastward toward South America in January, then reversed course and moved westward passing south of Australia in February and eventually reached South Africa in early March. I'm using particles as emitter, and I think curl noise isn't exactly what I want. But I'll give that a try. I think it would be the vorticity confinement on pyro solver or if your using the smome solver you can use the gasvortexconfinement microsolve.

Thanks jkunz07 I'll give that a shot right now. Okay so here is what I got. On this tests I used Gas Turbulence and Gas Disturbance microsolvers, I also tied Gasvortexconfinement and Gasvortexequalizer - but didn't like the results. And I have a new question - I've heard that it's possible to advect color by already cached simulation. Something like a "post sim", not sure. So how can I set that up?

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