Caustic formation in a non-Gaussian model for turbulent aerosols
Caustic formation in a non-Gaussian model for turbulent aerosols
Caustics in the dynamics of heavy particles in turbulence accelerate particle collisions. The rate <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mi mathvariant="script">J</a:mi></a:math> at which these singularities form depends sensitively on the Stokes number <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"><c:mi>St</c:mi></c:math>, the nondimensional inertia parameter. Exact results for this sensitive dependence have been obtained using Gaussian statistical models for turbulent aerosols. …