The size of micro- and nanofluidic devices accounts for their operation in modes that differ significantly from those the corresponding macroscopic counterparts. Deep understanding gas-dynamic processes occurring systems opens new opportunities practical use molecular transport at nanoscale. Models simulation methods with high reliability are described. article also outlines important flow para...

The large-scale expansion dynamics of quantum gases is a central tool for ultracold gas experiments and poses significant challenge theory. In this work we provide an exact reformulation the Gross-Pitaevskii equation Bose in coordinate frame that adaptively scales with system size during evolution, enabling simulations long evolution times or similar manipulation. Our approach makes no hydrodyn...

We propose a two-population lattice Boltzmann model on standard lattices for the simulation of compressible flows. The is fully on-lattice and uses single relaxation time Bhatnagar–Gross–Krook kinetic equations along with appropriate correction terms to recover Navier–Stokes–Fourier equations. accuracy performance are analyzed through simulations benchmark cases including Sod shock tube, sound ...

High-velocity oxygen fuel (HVOF) thermal spraying uses a combustion process to heat the gas flow and coating material. A computational fluid dynamics (CFD) model has been developed to predict gas dynamic behavior in a HVOF thermal spray gun in which premixed oxygen and propane are burnt in a combustion chamber linked to a parallel-sided nozzle. The CFD analysis is applied to investigate axisymm...

We quantify the notion of a dense soliton gas by establishing an upper bound for the integrated density of states of the quantum-mechanical Schrödinger operator associated with the Korteweg-de Vries soliton gas dynamics. As a by-product of our derivation, we find the speed of sound in the soliton gas with Gaussian spectral distribution function.