Articles with "density ratio" as a keyword



Spatial variability of the Arctic Ocean's double-diffusive staircase

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jc012419

Abstract: The Arctic Ocean thermohaline stratification frequently exhibits a staircase structure overlying the Atlantic Water Layer that can be attributed to the diffusive form of double-diffusive convection. The staircase consists of multiple layers of O(1) m… read more here.

Keywords: double diffusive; arctic ocean; diffusive staircase; density ratio ... See more keywords

Fluid–fluid interactions in pseudopotential lattice Boltzmann models: Effects of model schemes and fluid properties

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Published in 2020 at "International Journal for Numerical Methods in Fluids"

DOI: 10.1002/fld.4943

Abstract: This article demonstrates the characteristics of interparticle forces and forcing schemes in pseudopotential lattice Boltzmann simulations. The Yuan–Schaefer (YS), multipseudopotential interaction (MPI), and piecewise linear methods are examined as techniques of equation of state (EOS)… read more here.

Keywords: density ratio; pseudopotential lattice; lattice boltzmann;

The effect of thinning and cue:density ratio on risk perception by Rana dalmatina tadpoles

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Published in 2018 at "Hydrobiologia"

DOI: 10.1007/s10750-018-3510-6

Abstract: The “risk assessment hypothesis” considers prey density as an important variable to properly assess the actual level of risk, and predicts that, when the ratio between predator cue concentration and prey density is constant, the… read more here.

Keywords: density ratio; cue density; risk; density ... See more keywords

An experimental investigation on streamwise distance and density ratio effects on double-jet film-cooling

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Published in 2019 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2019.04.081

Abstract: Abstract In the present study, flow field and film-cooling effectiveness of several double-jet film-cooling geometries on a flat plate are measured. The streamwise distance varies as s/d = 3.0, 4.0, 5.0, and 6.0, while three spanwise distance… read more here.

Keywords: film; streamwise distance; distance; density ratio ... See more keywords

Improving the flexural-strength-to-density ratio in alumina ceramics with the addition of silicon nitride

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Published in 2020 at "Ceramics International"

DOI: 10.1016/j.ceramint.2020.09.260

Abstract: Abstract Alumina (Al2O3) and silicon nitride (Si3N4) ceramic compositions were studied as prospective materials for ballistic ceramics. Alumina ceramics with contents of 0, 5, 10 and 15 wt% of silicon nitride studied in order to improve… read more here.

Keywords: flexural strength; silicon nitride; strength density; density ratio ... See more keywords

Secondary breakup of drops at moderate Weber numbers: Effect of Density ratio and Reynolds number

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Published in 2019 at "International Journal of Multiphase Flow"

DOI: 10.1016/j.ijmultiphaseflow.2019.04.026

Abstract: Abstract Breakup of liquid drops occurs in several natural and industrial settings. Fully resolved volume of fluid based simulations presented in this study reveal the complete flow physics and droplet dynamics that lead to the… read more here.

Keywords: density; moderate weber; breakup; number ... See more keywords

Effect of the density ratio variation on the dynamics of a liquid jet injected into a gaseous cross-flow

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Published in 2021 at "Physics of Fluids"

DOI: 10.1063/5.0064149

Abstract: In this paper, we investigate the effect of the density ratio on the primary atomization characteristics of a liquid jet injected into a gaseous crossflow. Jets into crossflow with a high density ratio can be… read more here.

Keywords: density ratio; effect density; liquid jet; density ... See more keywords

An improved multiphase lattice Boltzmann flux solver with a modified Cahn–Hilliard equation for multiphase flow with super large density ratio

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Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0189032

Abstract: In this study, a modified Cahn–Hilliard equation with a very simple format was proposed, which can be used to simulate immiscible multi-component/multiphase flow with a super large density ratio. In addition, based on this modified… read more here.

Keywords: equation; large density; density ratio; flow ... See more keywords

Impact of density ratio on droplet dynamics in pulsating flow

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Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0233165

Abstract: Secondary atomization is extensively studied by investigating a droplet subjected to a steady air/gas stream. However, droplets are often subjected to unsteady or pulsating flows, such as in aero-engines or rockets, because of thermo-acoustic instabilities… read more here.

Keywords: density ratio; breakup; pulsating flow; droplet dynamics ... See more keywords

Lattice Boltzmann models for the hydrodynamic equations in multiphase flow with high density ratio

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0260829

Abstract: Multiphase flows with high density ratios, such as water and air flows, have recently been simulated using the lattice Boltzmann (LB) method. This approach corresponds to solving the phase field equations, such as the Cahn–Hilliard… read more here.

Keywords: density ratio; hydrodynamic equations; high density; density ... See more keywords

Deep Mutual Density Ratio Estimation with Bregman Divergence and Its Applications

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Published in 2025 at "Journal of the American Statistical Association"

DOI: 10.1080/01621459.2025.2507437

Abstract: Abstract This article introduces a unified approach to estimating the mutual density ratio, defined as the ratio between the joint density function and the product of the individual marginal density functions of two random vectors.… read more here.

Keywords: mutual density; bregman divergence; density ratio; estimation ... See more keywords