| 44 | | [[Image(MassEvolution.png, width=400)]] |
| 45 | | |
| 46 | | [[Image(EnergyEvolution.png, width=400)]] |
| 47 | | |
| | 44 | [[Image(MassCurveOldCooling.png, width=400)]] |
| | 45 | |
| | 46 | The clumpy flow initially has no clumps within a few pc of the interface - so the mass is only about 1 quarter of the the smooth run initially. Overall materially is getting splashed vertically out of the region - but in the clumpy flow I think some additional material escapes out the other side of the hockey puck region at about 2 Myr, but then eventually gets brought back in... |
| | 47 | ---- |
| | 48 | [[Image(EnergyCurves.png, width=400)]] |
| | 49 | |
| | 50 | The Mach numbers for the flows are approximately sonic - but the thermal energy ends up being 3x the kinetic for a M=1 flow. The initial thermal energy density is higher for the smooth flow because the material is at 1 part/cc at the peak of the equilibrium curve - while for the clumpy flow, the material (both the ambient and the clumps) are at a lower pressure. Also plotted are the theoretical growth curves for the thermal energies and the kinetic energy (just looking at the fluxes into the region - ie assuming no conversion of energies). Overall the thermal energies behave similarly - though the unperturbed material flowing in has a thermal energy density that is 2.92 higher. The Kinetic energy of the smooth run also grows for a very short time before quickly beginning to dissipate in what I imagine is a reflected shock working it's way outward before the material has a chance to cool and this shock collapses. In the movies of the smooth flows - you can faintly see this reverse shock until about 2 Myr when the interior has cooled into dense structures and the support falls out... This doesn't happen in the clumpy flow run since most of the kinetic energy is in the dense clumps which plow through the opposing flow... |
| | 51 | |
| | 52 | ---- |
| | 53 | [[Image(EnergyCurvesFirstRuns.png, width=400)]] |
| | 54 | |
| | 55 | Here is also another curve showing the longer time development when the flows are shut-off. The clumpy flow in this plot was generated using a wider grid - and the resolution was slightly different... and the largest effect would be on the gravitational energy since the gravitational well is deeper because of the additional material surrounding the hockey puck... But you do see the rapid dissipation of kinetic energy and thermal energy and the stalling of the mass influx (since the gravitational energy flattens) but then you get very rapid collapse. Then the gravitational energy of the gas appears to lessen but that is because material is getting accreted into sink particles... |
| | 56 | ---- |
