Results 31 to 40 of about 106,138 (262)

Optimization and verification of droplet infiltration model in contact line theory

open access: yesPolymer Testing, 2023
In order to improve the theory of contact line density, the contact angle model of rectangular convex structure with anisotropy was established, and the integral method and cyclic assignment method were used to solve the droplet volume.
Yanbin Zhang   +4 more
doaj   +1 more source

Numerical analysis on temporal size change of expiratory droplets by considering component variation [PDF]

open access: yesE3S Web of Conferences, 2022
When conducting computational fluid dynamics (CFD) simulations to investigate the evaporation characteristics of respiratory particles, the over-simplification of droplet compositions may cause inaccuracies in the results.
Bu Yunchen   +3 more
doaj   +1 more source

The fermion density operator in the droplet bosonization picture [PDF]

open access: yesNuclear Physics B, 2006
We derive the phase space particle density operator in the 'droplet' picture of bosonization in terms of the boundary operator. We demonstrate that it satisfies the correct algebra and acts on the proper Hilbert space describing the underlying fermion system, and therefore it can be used to bosonize any hamiltonian or related operator.
Enciso, Alberto   +1 more
openaire   +3 more sources

Compensation of Aerodynamic Sampling Effects of a Cloud Droplet Instrument

open access: yesIEEE Access, 2022
Precise sampling is a crucial part of the aerosol measurement processes that ideally requires perfectly isokinetic conditions in which particles in the sampling volume move exactly the same way as they would in an undisturbed flow.
Harri J. Juttula   +3 more
doaj   +1 more source

Density and viscosity ratio effects in droplet formation [PDF]

open access: yes38th Aerospace Sciences Meeting and Exhibit, 2000
New results are reported on the propagation of a vortex ring through immiscible fluid interfaces in the limit of high Weber number in microgravity and in I-G. The main objective of the tests is to detennine the effect of density and viscosity ratios on the dynamics of the interaction.
Kim, Choongil, Bernal, Luis P.
openaire   +1 more source

The boundary density profile of a Coulomb droplet. Freezing at the edge [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2020
Abstract We revisit the problem of computing the boundary density profile of a droplet of two-dimensional one-component plasma (2D OCP) with logarithmic interaction between particles in a confining harmonic potential. At a sufficiently low temperature, but still in the liquid phase, the density exhibits oscillations as a function of ...
Gabriel Cardoso   +2 more
openaire   +3 more sources

A hybrid axisymmetric conservative phase-field lattice Boltzmann method for hollow droplet migration

open access: yesFrontiers in Physics, 2023
A hybrid axisymmetric conservative phase-field lattice Boltzmann method is applied to investigate the influence of Marangoni number (Ma), density ratio (ρr), and radius ratio (Rr) on thermocapillary migration of a deformable hollow droplet with ...
Ximei Qin
doaj   +1 more source

QCD at finite baryon density: nucleon droplets and color superconductivity [PDF]

open access: yesPhysics Letters B, 1998
We use a variational procedure to study finite density QCD in an approximation in which the interaction between quarks is modelled by that induced by instantons. We find that uniform states with conventional chiral symmetry breaking have negative pressure with respect to empty space at all but the lowest densities, and are therefore unstable. This is a
Alford, M., Rajagopal, K., Wilczek, F.
openaire   +2 more sources

Experimental Investigation on the Spray Behaviour of Bluff Body Air-Assisted Atomizer Designs

open access: yesFluids, 2022
This study investigates the gas dynamic effects and atomization behavior of a novel sonic bluff body-assisted two-fluid atomizer with three different geometric configurations based on airflow orifice diameters (d) of 2.0 mm, 3.0 mm, and 4.0 mm.
Raghav Sikka   +3 more
doaj   +1 more source

A multiphase model for exploring electrochemical Marangoni flow

open access: yesElectrochemistry Communications, 2023
A multiphase numerical model based on the volume of fluid (VOF) method is proposed to simulate the transient, electrochemically-generated Marangoni flow in a system comprising a NaOH electrolyte and a eutectic gallium–indium (EGaIn) metal droplet.
E. Karimi-Sibaki   +6 more
doaj   +1 more source

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