id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-336948-8yqdhcnz	Löhner, Rainald	Detailed simulation of viral propagation in the built environment	2020-08-05		.txt	text/plain	5698	314	55	If, for the sake of argument, we consider Stoke's law for the drag of spherical particles, valid below Reynolds numbers of Re = 1, the terminal sink velocity (also known as the settling velocity) of particles will be given by [26] : where ρ p , ρ g , g, μ, d denote the density of the particles (essentially water in the present case), density of the gas (air), gravity, dynamic viscosity of the gas and diameter of the particle respectively. -Spatial discretization using unstructured grids (in order to allow for arbitrary geometries and adaptive refinement); -Spatial approximation of unknowns with simple linear finite elements (in order to have a simple input/output and code structure); -Edge-based data structures (for reduced access to memory and indirect addressing); -Temporal approximation using implicit integration of viscous terms and pressure (the interesting scales are the ones associated with advection); -Temporal approximation using explicit, high-order integration of advective terms; -Low-storage, iterative solvers for the resulting systems of equations (in order to solve large 3-D problems); and -Steady results that are independent from the timestep chosen (in order to have confidence in convergence studies).	./cache/cord-336948-8yqdhcnz.txt	./txt/cord-336948-8yqdhcnz.txt