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Analysis of Coherent Structures in a Turbulent Boundary Layer With Pressure Gradients

Lu Lipeng,Li Zhaorui

Strategic Study of CAE 2002, Volume 4, Issue 11,   Pages 50-56

Abstract: By using the method of direct numerical simulation, the coherent structures in the wall region of a turbulentboundary layer with either steady or changing pressure gradients were studied.

Keywords： coherent structures     turbulent boundary layer     pressure gradients     direct numerical simulation (DNS)    

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The Ejection and Sweep in the Wall Region of a Turbulent Boundary Layer Under Adverse Pressure Gradient

Zhang Qiang,Lu Lipeng

Strategic Study of CAE 2003, Volume 5, Issue 11,   Pages 47-50

Abstract:

The evolution of coherent structures in the wall region of a turbulent boundary layer under adverse

Keywords： coherent structures     turbulent boundary layer     adverse pressure gradients     direct numerical simulation    

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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: the distribution of a solute undergoing a first order chemical reaction in an axisymmetric laminar boundarylayer flow along a stretching cylinder.Velocity slip condition at the boundary is used instead of no-slip condition.

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

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Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over

Krishnendu Bhattacharyya

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 376-384 doi: 10.1007/s11705-011-1121-0

Abstract: paper, an investigation is made to study the effects of radiation and heat source/sink on the unsteady boundarylayer flow and heat transfer past a shrinking sheet with suction/injection.The study reveals that the momentum boundary layer thickness increases with increasing unsteadiness andThe thermal boundary layer thickness decreases with Prandtl number, radiation parameter and heat sink

Keywords： MHD boundary layer     unsteady flow     heat transfer     thermal radiation     heat source/sink     shrinking sheet     suction    

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Dynamic characteristics analysis of active constrained layer damping plate with various boundary conditions

Jing LU, Yu XIANG, Qiao NI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 449-455 doi: 10.1007/s11465-011-0240-0

Abstract: piezoelectric effect, expressions of piezoelectric membrane internal forces in the piezoelectric constrained layerThe control equations of the piezoelectric constrained layer and host plate were obtained in accordinglayer damping (ACLD) plate was derived for the simply supported boundary condition.Then, this method was expanded to the ACLD plate with cantilever boundary condition by virtue of geometricsemi-analytical method was proposed to analyze the dynamic characteristics of the ACLD plate with various boundary

Keywords： active constrained layer damping (ACLD) plate     dynamic characteristics     semi-analytical method     extended    

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Numerical study and control method of interaction of nucleation and boundary layer separation in condensing

Liansuo AN , Zhi WANG , Zhonghe HAN ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 254-261 doi: 10.1007/s11708-009-0047-4

Abstract: Results were presented for viscous and inviscous flow, showing the influence of boundary layer separationFurthermore, the impact of boundary layer separation and wake vortices on velocity profiles and its implicationsThe calculations showed that layer separation and wake vortices influence nucleation rate, leading to

Keywords： wet steam     two-phase flow     spontaneous condensation     numerical simulation     flow separation     profile loss    

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Joule heating on electro-osmotic flow in a closed-end micro-channel with isothermal and convective boundary

Liang ZHAO, Linhua LIU,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 381-388 doi: 10.1007/s11708-009-0057-2

Abstract: between considering Joule heating and without considering Joule heating is small under the convective boundary

Keywords： closed-end micro-channel     electrical double layer     electro-osmotic flow     induced pressure gradient     Joule    

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Experimental study of humid air reverse diffusion combustion in a turbulent flow field

GE Bing, ZANG Shusheng, GU Xin

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 428-434 doi: 10.1007/s11708-007-0062-6

Abstract: Experiments were performed to investigate the differences between the propane/air turbulent diffusionreactive flows past bluff-body and the propane/humid air turbulent diffusion reactive flows in the same

Keywords： propane/humid     propane/air turbulent     bluff-body     turbulent diffusion    

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Large eddy simulation of turbulent buffet forces in flow induced vibration

XI Zhide, CHENG Bingde, LI Pengzhou

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 524-527 doi: 10.1007/s11708-008-0099-x

Abstract: The pressure pulse filter and Smagorinsky sub-grid stress model of the Large Eddy Simulation (LES) are introduced. The fluid field in the annular plenum between the pressure vessel and the core barrel of the1:5 model in the second phase of Qinshan Nuclear Power Plant is simulated, and the distribution of the total pressure in the space and time domains is obtained. The results show that the Power Spectrum Density (PSD) of LES from the calculation and the test are in the same quantity order. Thus, the pressure of LES can be a load to stimulate the barrel vibration.

Keywords： Spectrum Density     Smagorinsky sub-grid     vibration     calculation     Qinshan Nuclear    

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

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 theOn the other hand, with an increase in the magnetic field and mass suction, both boundary layer thicknesses

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

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Numerical simulation of three-dimensional turbulent flow in multistage axial compressor blade row

JIANG Jian, LIU Bo, WANG Yangang, NAN Xiangyi

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 320-325 doi: 10.1007/s11708-008-0041-2

Abstract: Numerical simulation of three-dimensional turbulent flow in a multistage axial compressor blade row isA high resolution, third-order ENN scheme is adopted to catch the shockwave and simulate the turbulent

Keywords： simulation     compressor     multistage     third-order     three-dimensional turbulent    

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URANS simulation of the turbulent flow in tight lattice bundle

Yiqi YU, Yanhua YANG

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 404-411 doi: 10.1007/s11708-011-0165-7

Abstract: In this paper, the turbulent flow with different Reynolds number (5000–215000) and different pitch-to-diameterThe effects of the Reynolds number and the bundle geometry ( / ) on wall shear stress, turbulent kineticenergy, turbulent mixing and large scale coherent structure in tight lattice are analyzed in details

Keywords： tight rod bundle     flow structure     unsteady Reynolds averaged Navier Stokes (URANS)    

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Anti-erosion elastic coating design based on synchronous fluctuation principle

Guo Yuanjun,Xiao Hualin,Xu Daqing,Li Wenbin

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 60-63

Abstract: ">Based on the corresponding relation of characteristic parameters between the perturbation wave of boundarylayer and the surface erosion corrugation wave of fluid-pass section, the anti-erosion design idea iscan realize the synchronistic fluctuate of elastic coating channel border with the perturbation of boundarylayer, and change the passive state that channel border bears particle's impacting into that thelayer is analyzed.

Keywords： erosion     boundary layer     elastic channel border     elastic coating     synchronous fluctuation    

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Numerical simulation of the characteristics of turbulent Taylor vortex flow

ZHOU Xiantao, PAN Jiazhen, CHEN Liqing, SHI Yan, CHEN Wenmei, CHU Liangyin

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 195-201 doi: 10.1007/s11705-007-0036-2

Abstract: Turbulent Taylor vortex flow, which is contained between a rotating inner cylinder and a coaxial fixedBased on the numerical simulation results of the turbulent Taylor vortex flow, its characteristics such
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Safety and serviceability assessment for high-rise tower crane to turbulent winds

Zhi SUN, Nin HOU, Haifan XIANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 18-24 doi: 10.1007/s11709-009-0009-2

Abstract: paper proposes a general scheme for safety and serviceability assessment of high-rise tower crane to turbulent

Keywords： tower crane     buffeting response     wind velocity     modeling    

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Title Author Date Type Operation

Analysis of Coherent Structures in a Turbulent Boundary Layer With Pressure Gradients

Lu Lipeng,Li Zhaorui

Journal Article

The Ejection and Sweep in the Wall Region of a Turbulent Boundary Layer Under Adverse Pressure Gradient

Zhang Qiang,Lu Lipeng

Journal Article

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

Swati Mukhopadhyay

Journal Article

Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over

Krishnendu Bhattacharyya

Journal Article

Dynamic characteristics analysis of active constrained layer damping plate with various boundary conditions

Jing LU, Yu XIANG, Qiao NI

Journal Article

Numerical study and control method of interaction of nucleation and boundary layer separation in condensing

Liansuo AN , Zhi WANG , Zhonghe HAN ,

Journal Article

Joule heating on electro-osmotic flow in a closed-end micro-channel with isothermal and convective boundary

Liang ZHAO, Linhua LIU,

Journal Article

Experimental study of humid air reverse diffusion combustion in a turbulent flow field

GE Bing, ZANG Shusheng, GU Xin

Journal Article

Large eddy simulation of turbulent buffet forces in flow induced vibration

XI Zhide, CHENG Bingde, LI Pengzhou

Journal Article

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

Krishnendu BHATTACHARYYA, G. C. LAYEK

Journal Article

Numerical simulation of three-dimensional turbulent flow in multistage axial compressor blade row

JIANG Jian, LIU Bo, WANG Yangang, NAN Xiangyi

Journal Article

URANS simulation of the turbulent flow in tight lattice bundle

Yiqi YU, Yanhua YANG

Journal Article

Anti-erosion elastic coating design based on synchronous fluctuation principle

Guo Yuanjun,Xiao Hualin,Xu Daqing,Li Wenbin

Journal Article

Numerical simulation of the characteristics of turbulent Taylor vortex flow

ZHOU Xiantao, PAN Jiazhen, CHEN Liqing, SHI Yan, CHEN Wenmei, CHU Liangyin

Journal Article

Safety and serviceability assessment for high-rise tower crane to turbulent winds

Zhi SUN, Nin HOU, Haifan XIANG

Journal Article