Large eddy simulation of droplet dispersion for inhomogeneous turbulent wall flow

Vinkovic, Ivana; Aguirre, Cesar Augusto; Simoëns, Serge; Gorokhovski, Mikhael

doi:10.1016/j.ijmultiphaseflow.2005.10.005

Cited by 64 publications

(29 citation statements)

References 47 publications

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“…Besides, in the simulation of heavy particles, it is also found that the choice of subgrid model is related to the computational accuracy of particles [30][31][32][33][34]. The aim of the research on resolved-scale scaling law is to provide a better tool for the subgrid modeling in LES.…”

Section: Applications Of Resolved-scale Scaling Law In Lesmentioning

confidence: 99%

Scaling law of resolved-scale isotropic turbulence and its application in large-eddy simulation

Fang

2014

Acta Mech Sin

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Eddy-damping quasinormal Markovian (EDQNM) theory is employed to calculate the resolved-scale spectrum and transfer spectrum, based on which we investigate the resolved-scale scaling law. Results show that the scaling law of the resolved-scale turbulence, which is affected by several factors, is far from that of the full-scale turbulence and should be corrected. These results are then applied to an existing subgrid model to improve its performance. A series of simulations are performed to verify the necessity of a fixed scaling law in the subgrid modeling.

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Section: Applications Of Resolved-scale Scaling Law In Lesmentioning

confidence: 99%

Scaling law of resolved-scale isotropic turbulence and its application in large-eddy simulation

Fang

2014

Acta Mech Sin

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“…The numerical simulation of a SN 2 particle and surrounding gaseous nitrogen (GN 2 ) flow composed of two immiscible fluids involves a combination of three tasks: 1) resolving the flow field, 2) updating the position of the interface and 3) resolving the cryogenic thermal field. The first task is completed by solving the Navier-Stokes equations taking into account the effect of the subgrid scale atomizing flow field by LES [8,9,10]. The second task is performed using the Volume of Fluid (VOF) method [11,12,13].…”

Section: Computational Study For Cooling Heat Transfer and Impingemenmentioning

confidence: 99%

Ultra-high heat flux cooling characteristics of cryogenic micro-solid nitrogen particles and its application to semiconductor wafer cleaning technology

Ishimoto¹,

Oh²,

Zhao³

et al. 2014

AIP Conference Proceedings

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Abstract. The ultra-high heat flux cooling characteristics and impingement behavior of cryogenic micro-solid nitrogen (SN 2 ) particles in relation to a heated wafer substrate were investigated for application to next generation semiconductor wafer cleaning technology. The fundamental characteristics of cooling heat transfer and photoresist removal-cleaning performance using micro-solid nitrogen particulate spray impinging on a heated substrate were numerically investigated and experimentally measured by a new type of integrated computational-experimental technique. This study contributes not only advanced cryogenic cooling technology for high thermal emission devices, but also to the field of nano device engineering including the semiconductor wafer cleaning technology.

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“…The numerical simulation of atomizing flows composed of two immiscible fluids involves two coupled tasks: 1) resolving the flow field and 2) updating the position of the interface. The first task is completed by solving the Navier-Stokes equations taking into account the effect of the subgrid scale atomizing flow field by LES [9,10]. The second task is performed using the Volume of Fluid (VOF) method [11][12][13].…”

Section: Governing Equationsmentioning

confidence: 99%

Integrated Simulation of the Atomization Process of a Liquid Jet Through a Cylindrical Nozzle

Ishimoto

Hoshina

Tsuchiyama

et al. 2007

IIS

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The 3-D structure of liquid atomization behavior through a cylindrical nozzle is numerically investigated and visualized by a new type of integrated simulation technique. CFD (Computational Fluid Dynamics) analysis focused on the consecutive breakup of a liquid column, formation of liquid film, and generation of droplets of a cylindrical flow in the outlet section of the nozzle. Utilizing the governing equations for high-speed atomizing nozzle flow based on the LES-VOF model in conjunction with the CSF model, an integrated parallel computation is performed to clarify the detailed atomization process of a cylindrical nozzle flow and to acquire data, which is difficult to confirm by experiment, such as atomization length, liquid core shape, distribution droplet sizes, spray angle and droplet velocity profiles. According to the present analysis, the atomization rate and the droplets-gas two-phase flow characteristics are found to be controlled by the turbulence perturbation upstream of the injector nozzle, hydrodynamic instabilities at the gas-liquid interface, and shear stresses between the liquid core and periphery of the jet.

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Large eddy simulation of droplet dispersion for inhomogeneous turbulent wall flow

Cited by 64 publications

References 47 publications

Scaling law of resolved-scale isotropic turbulence and its application in large-eddy simulation

Scaling law of resolved-scale isotropic turbulence and its application in large-eddy simulation

Ultra-high heat flux cooling characteristics of cryogenic micro-solid nitrogen particles and its application to semiconductor wafer cleaning technology

Integrated Simulation of the Atomization Process of a Liquid Jet Through a Cylindrical Nozzle

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