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Burnett simulations of gas flow and heat transfer in microchannels

Fubing BAO, Jianzhong LIN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 252-263 doi: 10.1007/s11465-009-0037-6

Abstract: In micro- and nanoscale gas flows, the flow falls into the transition flow regime.The Navier-Stokes equations fail to describe the gas flow in this regime.The Burnett equations are first reviewed, and the augmented Burnett equations with high-order slip boundaryconditions are then used to model the gas flow and heat transfer in Couette and Poiseuille flows inthe transition regime.

Keywords： micro- and nanoscale gas flow     slip-transition flow regime     Burnett equations     numerical simulation    

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Experimental study for the stratified to slug flow regime transition mechanism of gas-oil two-phase flow

LIU Yiping, YANG Weilin, WANG Jing

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 152-157 doi: 10.1007/s11708-008-0012-7

Abstract: Theoretical relations that predict the transition from a stratified pattern to a slug pattern, includingcontains less empiricism than the commonly used Taitel-Dukler model, and the ideal model for stratified flowfor the gas-liquid flow in horizontal pipes are presented.regime transition.The effect of pipe diameter on the transition was also studied.

Keywords： two-phase     Superficial     reasonable prediction     one-dimensional     gas-liquid    

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Kinetic roughening transition and missing regime transition of melt crystallized polybutene-1 tetragonal

Motoi YAMASHITA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 125-134 doi: 10.1007/s11705-009-0001-3

Abstract: The kinetic roughening transition occurs around 85°C.

Keywords： isotactic polybutene-1     tetragonal phase (form Ⅱ)     melt crystallization     growth rate     kinetic roughening     morphology    

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Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder

Swati Mukhopadhyay

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 385-391 doi: 10.1007/s11705-011-1101-4

Abstract: distribution of a solute undergoing a first order chemical reaction in an axisymmetric laminar boundary layer flowVelocity slip condition at the boundary is used instead of no-slip condition.The velocity decreases with increasing slip parameter.

Keywords： boundary layer     stretching cylinder     partial slip     mass transfer     similarity solution    

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Investigation of bubble diameter and flow regime between water and dilute aqueous ethanol solutions in

Baharak SAJJADI, Mostafa Keshavarz MORAVEJI, Reza DAVARNEJAD

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 194-202 doi: 10.1007/s11705-010-1019-2

Abstract: effect of ethanol addition into pure water and its concentration on bubble diameter, gas hold-up and flowFor ethanol solutions in lower superficial gas velocity, a homogenous flow regime was observed.The transition flow regime occurred after this datum although in pure water, a homogenous flow regime

Keywords： airlift rector     bubble diameter     gas hold-up     flow regime     ethanol    

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Magnetohydrodynamic slip flow and diffusion of a reactive solute past a permeable flat plate with suction

Krishnendu BHATTACHARYYA, G. C. LAYEK

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 471-476 doi: 10.1007/s11705-011-1130-z

Abstract: The magnetohydrodynamic (MHD) boundary layer slip flow and solute transfer over a porous plate in theThe study reveals that due to the increase in the boundary slip, the concentration decreases and the

Keywords： slip flow     MHD boundary layer     reactive solute diffusion     flat plate     suction/injection    

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Study of two-phase flow regime identification in horizontal tube bundles under vertical upward cross-flow

HUANG Xinghua, WANG Li, JIA Feng

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 333-338 doi: 10.1007/s11708-008-0043-0

Abstract: A wavelet-transform based approach for flow regime identification in horizontal tube bundles under verticalDifferent time-scale characteristics in bubbly flow, churn flow and annular flow were analyzed.The wavelet energy distributions over scales were found to be appropriate for flow regime identificationBased on the wavelet energy distribution over characteristic scales, a criterion of flow regime identificationregime identification in horizontal tube bundles under vertical upward cross-flow condition.

Keywords： two-phase     discrete     appropriate     wavelet-transform     criterion    

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The study of slip line field and upper bound method based on the non-associated flow rule

Zheng Yingren,Deng Chujian,Wang Jinglin

Strategic Study of CAE 2010, Volume 12, Issue 8,   Pages 56-69

Abstract:

The slip line field theory and the upper bound method based on the associatedIn this paper some problems existing in the slip line field theory and the upper bound method based onthe associated flow rule were analyzed.The slip line field theory and the upper bound method based on the non-associated flow rule were deducedaccording to the generalized plastic theory , which eliminated some inconsistencies in the slip line

Keywords： slip line field     upper bound method     associated flow rule     non-associated flow rule     generalized plastic    

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Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 127-138 doi: 10.1007/s11708-020-0661-8

Abstract: This paper investigated effects of slip length and hydraulic diameter on the hydraulic entrance lengthof laminar flow in superhydrophobic microchannels.The dimensionless hydraulic entrance length slightly increases with the increasing slip length at approximatelyA new correlation to predict the entrance length in square microchannels with different slip lengthsThe results not only ascertain the flow characteristics of superhydrophobic microchannels, but also suggest

Keywords： laminar flow     hydraulic entrance length     super hydrophobic surface     slip length     hydraulic diameter    

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Laminar-to-Turbulence Transition Revealed Through a Reynolds Number Equivalence Article

Xiao Dong Chen

Engineering 2019, Volume 5, Issue 3,   Pages 576-579 doi: 10.1016/j.eng.2018.09.013

Abstract:

Flow transition from laminar to turbulent mode (and vice versa)—that is, the initiation of turbulenceEven for pipe flow, predicting the onset of turbulence requires sophisticated instrumentation and/ordirect numerical simulation, based on observing the instantaneous flow structure formation and evolutionFor pipe flow, ≈ 25, and for plate flow

Keywords： Local Reynolds number equivalence     Flow transition from laminar to turbulent mode     Universal law of thewall     Pipe flow     Plate flow     Modeling    

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Analysis of flow over backward facing step with transition

Dwarikanath RATHA,Arindam SARKAR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 71-81 doi: 10.1007/s11709-014-0270-x

Abstract: The flow of air over a backward facing step has been investigated numerically using FLUENT.cases are analyzed for wide range of Reynolds number ranging from 100 to 7000 which covers the laminar, transitionand turbulent flow of air.reattachment length at the bottom wall downstream of the step is minimum for the step with round edged transitionand maximum for the step with a vertical drop transition.

Keywords： Reattachment length     backward facing step     transition     flow separation     k-? model    

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Experimental investigation of multiphase flow behavior in drilling annuli using high speed visualization

Alap Ali ZAHID, Syed Raza ur REHMAN, Anwarul HASAN, S. RUSHD, Mohammad Azizur RAHMAN

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 635-643 doi: 10.1007/s11708-018-0582-y

Abstract: important technique to visualize the drilling conditions and to study the physics of complex multiphase flowThe main advantage of visualizing multiphase flow in a drilling annulus is that the viewer can easilydistinguish fluid phases, flow patterns and thicknesses of cutting beds.The two-phase (solid-liquid) and the three-phase (solid-liquid-gas) flow conditions involved in this

Keywords： visualization     horizontal annulus     hole cleaning     multiphase flow     image analysis     flow regime    

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A Versatile Flow-Profile Engineering Method in the Stokes Flow Regime for Complex-Shaped Flows Article

Zhenyu Yang, Lang Nan, Ho Cheung Shum

Engineering 2021, Volume 7, Issue 5,   Pages 655-662 doi: 10.1016/j.eng.2021.02.008

Abstract: Conventionally, flow profiles are engineered by inducing inertial secondary flow to redistribute theMoreover, each of the flow profiles specifically corresponds to a strictly defined flow condition andcannot be generalized to other flow environments.secondary flow.The flow is manipulated in the Stokes regime by deploying a cascaded series of microsteps with various

Keywords： Microfluidics     Flow profile     Stokes flow     Hydrodynamic focusing     Flow shaping    

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Piezoelectric inertial robot for operating in small pipelines based on stick-slip mechanism: modeling

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0697-z

Abstract: A piezoelectric inertial pipeline robot using a “stick-slip” mechanism was proposed to address this requirementA dynamics model of the stick-slip system was established by combining the dynamics model of the drivingExperimental results show that the proposed pipeline robot with inertial stick-slip mechanism has a great

Keywords： pipeline robot     piezoelectric     inertial drive     stick-slip     large load capacity     dynamics model     small    

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Longitudinal and lateral slip control of autonomous wheeled mobile robot for trajectory tracking

Hamza KHAN,Jamshed IQBAL,Khelifa BAIZID,Teresa ZIELINSKA

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 2,   Pages 166-172 doi: 10.1631/FITEE.1400183

Abstract: novelty of the proposed scheme lies in its methodology that considers both longitudinal and lateral slipBased on the derived slip model, the controller for longitudinal motion slip has been synthesized.The designed controller for lateral slip or skid is based on the proposed side friction model and skid

Keywords： Robot modeling     Robot navigation     Slip and skid control     Wheeled mobile robots    

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Title Author Date Type Operation

Burnett simulations of gas flow and heat transfer in microchannels

Fubing BAO, Jianzhong LIN

Journal Article

Experimental study for the stratified to slug flow regime transition mechanism of gas-oil two-phase flow

LIU Yiping, YANG Weilin, WANG Jing

Journal Article

Kinetic roughening transition and missing regime transition of melt crystallized polybutene-1 tetragonal

Motoi YAMASHITA

Journal Article

Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder

Swati Mukhopadhyay

Journal Article

Investigation of bubble diameter and flow regime between water and dilute aqueous ethanol solutions in

Baharak SAJJADI, Mostafa Keshavarz MORAVEJI, Reza DAVARNEJAD

Journal Article

Magnetohydrodynamic slip flow and diffusion of a reactive solute past a permeable flat plate with suction

Krishnendu BHATTACHARYYA, G. C. LAYEK

Journal Article

Study of two-phase flow regime identification in horizontal tube bundles under vertical upward cross-flow

HUANG Xinghua, WANG Li, JIA Feng

Journal Article

The study of slip line field and upper bound method based on the non-associated flow rule

Zheng Yingren,Deng Chujian,Wang Jinglin

Journal Article

Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Journal Article

Laminar-to-Turbulence Transition Revealed Through a Reynolds Number Equivalence

Xiao Dong Chen

Journal Article

Analysis of flow over backward facing step with transition

Dwarikanath RATHA,Arindam SARKAR

Journal Article

Experimental investigation of multiphase flow behavior in drilling annuli using high speed visualization

Alap Ali ZAHID, Syed Raza ur REHMAN, Anwarul HASAN, S. RUSHD, Mohammad Azizur RAHMAN

Journal Article

A Versatile Flow-Profile Engineering Method in the Stokes Flow Regime for Complex-Shaped Flows

Zhenyu Yang, Lang Nan, Ho Cheung Shum

Journal Article

Piezoelectric inertial robot for operating in small pipelines based on stick-slip mechanism: modeling

Journal Article

Longitudinal and lateral slip control of autonomous wheeled mobile robot for trajectory tracking

Hamza KHAN,Jamshed IQBAL,Khelifa BAIZID,Teresa ZIELINSKA

Journal Article