Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation

Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation

A Molecular dynamics simulation in a converging-diverging nozzle was performed to study molecular collisions and their influence to average flow velocity according to a variety of vacuum levels. The static pressures and the dynamic pressure exerted by the molecule collision on the selected walls wer...

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Main Authors: Na Jeoungsu, Lee Jaehawn, Hong Changil, Kim Suhee
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201710812002
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spelling doaj-39d7b10dacd747a9bfae3fff6a87074b2021-02-02T02:55:28ZengEDP SciencesMATEC Web of Conferences2261-236X2017-01-011081200210.1051/matecconf/201710812002matecconf_icmaa2017_12002Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD SimulationNa Jeoungsu0Lee Jaehawn1Hong Changil2Kim Suhee3R&D Department of NaJen, Co. LTDDept. of Computer Engineering, Hoseo UniversityDept. of Computer Engineering, Hoseo UniversityDept. of Computer Engineering, Hoseo UniversityA Molecular dynamics simulation in a converging-diverging nozzle was performed to study molecular collisions and their influence to average flow velocity according to a variety of vacuum levels. The static pressures and the dynamic pressure exerted by the molecule collision on the selected walls were compared to figure out the intensity variances of the directional flows. With pressure differences constant between the entrance and the exit of the nozzle, The numerical experiment was performed for molecular velocities and directional flows. The result shows that the velocities are increased at the nozzle exit as the vacuum level gets higher in that area because of less molecular collisionshttps://doi.org/10.1051/matecconf/201710812002
collection DOAJ
language English
format Article
sources DOAJ
author Na Jeoungsu
Lee Jaehawn
Hong Changil
Kim Suhee
spellingShingle Na Jeoungsu
Lee Jaehawn
Hong Changil
Kim Suhee
Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation
MATEC Web of Conferences
author_facet Na Jeoungsu
Lee Jaehawn
Hong Changil
Kim Suhee
author_sort Na Jeoungsu
title Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation
title_short Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation
title_full Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation
title_fullStr Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation
title_full_unstemmed Molecular Clustering and Velocity Increase in Converging-Diverging Nozzle in MD Simulation
title_sort molecular clustering and velocity increase in converging-diverging nozzle in md simulation
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2017-01-01
description A Molecular dynamics simulation in a converging-diverging nozzle was performed to study molecular collisions and their influence to average flow velocity according to a variety of vacuum levels. The static pressures and the dynamic pressure exerted by the molecule collision on the selected walls were compared to figure out the intensity variances of the directional flows. With pressure differences constant between the entrance and the exit of the nozzle, The numerical experiment was performed for molecular velocities and directional flows. The result shows that the velocities are increased at the nozzle exit as the vacuum level gets higher in that area because of less molecular collisions
url https://doi.org/10.1051/matecconf/201710812002
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AT leejaehawn molecularclusteringandvelocityincreaseinconvergingdivergingnozzleinmdsimulation
AT hongchangil molecularclusteringandvelocityincreaseinconvergingdivergingnozzleinmdsimulation
AT kimsuhee molecularclusteringandvelocityincreaseinconvergingdivergingnozzleinmdsimulation
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