Navier-Stokes Analysis of Gaseous Slip Flow in Long Grooves

Niu, Yang-Yao

doi:10.1080/104077899274903

Cited by 9 publications

(3 citation statements)

References 3 publications

(3 reference statements)

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“…According to this figure, plots of Nu show the same trend as those of Po. As expected, based on limiting cases from previous studies [25][26][27][28][29][30][31][32][33][34][35], Nu decreases with either Kn or Br.…”

Section: Resultssupporting

confidence: 68%

Effects of viscous heating, fluid property variation, velocity slip, and temperature jump on convection through parallel plate and circular microchannels

Hooman

Ejlali

2010

International Communications in Heat and Mass Transfer

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Section: Resultssupporting

confidence: 68%

Effects of viscous heating, fluid property variation, velocity slip, and temperature jump on convection through parallel plate and circular microchannels

Hooman

Ejlali

2010

International Communications in Heat and Mass Transfer

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“…In the recent study of Niu [5] and Cheng et al [6], the rotating helical channels were three-dimensionally modeled to investigate the curvature effect of channels, and a laminar compressible N-S solver with first-order velocity slip condition was used.…”

Section: Introductionmentioning

confidence: 99%

Molecular transition and slip flows in rotating helical channels of drag pump

Hwang¹,

Heo²

2001

AIP Conference Proceedings

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Abstract. Numerical and experimental investigations are performed for the rarefied gas flows in pumping channels of a helical-type drag pump. Modern turbomolecular pumps include a drag stage in the discharge side, operating roughly in the pressure range of 10~2~10Torr. The flow occurring in the pumping channel develops from the molecular transition to slip flow traveling downstream. Two different numerical methods are used in this analysis: the first one is a continuum approach in solving the Navier-Stokes equations with slip boundary conditions, and the second one is a stochastic particle approach through the use of the direct simulation Monte Carlo (DSMC) method. The flows in pumping channels are three-dimensional (3D), and the main difficulty in modeling a 3D case comes from the rotating frame of reference. Thus, trajectories of particles are no longer straight lines. In the present DSMC method, trajectories of particles are calculated by integrating a system of differential equations including the Coriolis and centrifugal forces. Our study is the first instance to analyze the rarefied gas flows in rotating frame in the presence of noninertial effects.

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“…В работах [23,24] для изучения влияния кривизны каналов была разработана трехмерная модель вращающегося спирального канала и проведено решение уравнения Навье -Стокса ламинарного течения с учетом граничных условий скольжения для скоростей первого порядка.…”

unclassified

Gas Flow in a Helical Port of a Molecular Vacuum Pump

Демихов¹,

Никулин²,

Свичкарь³

2012

EJSI

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УДК 621.52 К. Е. Д е м и х о в , Н. К. Н и к у л и н , Е. В. С в и ч к а р ь ТЕЧЕНИЕ ГАЗА В СПИРАЛЬНОМ КАНАЛЕ МОЛЕКУЛЯРНОГО ВАКУУМНОГО НАСОСА Приведены исследования течения газа в проточной части молекулярного вакуумного насоса (МВН) в вязкостном режиме течения газа. Проведен выбор и обоснование метода расчета МВН.

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Navier-Stokes Analysis of Gaseous Slip Flow in Long Grooves

Cited by 9 publications

References 3 publications

Effects of viscous heating, fluid property variation, velocity slip, and temperature jump on convection through parallel plate and circular microchannels

Effects of viscous heating, fluid property variation, velocity slip, and temperature jump on convection through parallel plate and circular microchannels

Molecular transition and slip flows in rotating helical channels of drag pump

Gas Flow in a Helical Port of a Molecular Vacuum Pump

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