Answers are grounded in this paper and cite their sources.
In this note we present complete, closed-form expressions for random relative velocities between colliding particles of arbitrary size in nebula turbulence. These results are exact for very small particles (those with stopping times much shorter than the large eddy overturn time) and are also surprisingly accurate in complete generality (that is, also apply for particles with stopping times comparable to, or much longer than, the large eddy overturn time). We note that some previous studies may have adopted previous simple expressions, which we find to be in error regarding the size dependence in the large particle regime.
No takes yet. Share an insight, caveat, or question.
A 2007 study studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: