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Algebraic-stress Turbulent Model of Planar 2-D Pollutant Convection-Diffusion in Curvilinear Coordinates

Wu Xiuguang,Shen Yongming,Wang Min,Yang Zhifeng

Strategic Study of CAE 2005, Volume 7, Issue 7, Pages 60-64

Abstract: The anisotropic algebraic-stress turbulent model is introduced to simulate the turbulence items, andalgebraic-stress turbulent model of planar 2-D pollutant convection-diffusion in curvilinear coordinatesThe meandering channel with measured data of concentration in lab is adopted to validate the model.and that of the k-ε model shows the model in the paper is superior to k-ε turbulentmodel in dealing with anisotropy.

Keywords： pollutant convection-diffusion anisotropic algebraic-stress turbulent model k-ε model

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Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranesby Algebraic Method

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1, Pages 58-70 doi: 10.1007/s11465-014-0289-7

Abstract:

In the current paper, a simplified model of Tower Cranes has been presented in order to investigateanalyze the nonlinear differential equation governing on the presented system in three different cases by AlgebraicThe simplification of the solution procedure in Algebraic Method and its application for solving a wideof study such as fluid mechanics, chemical engineering, etc. make AGM be a powerful and useful role model

Keywords： Algebraic Method (AGM) tower crane oscillating system angular frequency

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Improved analytical model for residual stress prediction in orthogonal cutting

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3, Pages 249-256 doi: 10.1007/s11465-014-0310-1

Abstract:

The analytical model of residual stress in orthogonal cutting proposed by Jiann is an important toolIn application of the model, a problem of low precision of the surface residual stress prediction isboundary conditions, unreasonable calculation method of thermal stress, ignorance of stress constraintwith the real cutting process; an improved calculation method of thermal stress is adopted; a stressAlso, Jiann’s model and the improved model are simulated under the same conditions with cutting

Keywords： residual stress analytical model orthogonal cutting cutting force cutting temperature

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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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Multiscale model of micro curing residual stress evolution in carbon fiber-reinforced thermoset polymer

Xinyu HUI, Yingjie XU, Weihong ZHANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3, Pages 475-483 doi: 10.1007/s11465-020-0590-6

Abstract: A thermochemical coupling model is developed at the macroscale level to obtain the distributions of temperatureMeanwhile, a representative volume element model of the composites is established at the microscale levelinformation from the macroscale perspective, the curing residual stresses are calculated using the microscale model

Keywords： CFRP curing residual stress multiscale modeling finite element method

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Damage-constitutive model for seawater coral concrete using different stirrup confinements subjected

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3, Pages 429-447 doi: 10.1007/s11709-022-0913-2

Abstract: Subsequently, the stress−strain curves of specimens subjected to axial loading were measured.cohesive-elastic ring model and modified elastic beam theory.Moreover, a damage-constitutive model of CAC considering the lateral stress was set up based on damageThe lateral stress model showed a good agreement with the experimental data, and the proposed damage-constitutivemodel had a good correlation with the measured stress−strain curves.

Keywords： coral aggregate concrete stress−strain curves lateral effective stress peak stress axial−lateralcurves damage-constitutive model.

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Predictive model to decouple the contributions of friction and plastic deformation to machined surfacetemperatures and residual stress patterns in finish dry cutting

Subhash ANURAG, Yuebin GUO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3, Pages 247-255 doi: 10.1007/s11465-010-0097-7

Abstract: This study provides a finite element method based on a predictive model to decouple the contributionsResidual stress reversal from subsurface maximum residual to surface maximum residual stress may occur

Keywords： surface temperature friction residual stress finite element analysis (FEA) dry cutting tool property

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The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3, Pages 265-269 doi: 10.1007/s11465-014-0311-0

Abstract: On the basis of the analytical model for residual stress, a series of simulations for residual stressorder to obtain the influences of cutting speed, depth of cut and tool edge radius on surface residual stressAnd these influences are explained from the perspective of formation mechanism of residual stress in

Keywords： residual stress analytical model strain plastic cutting parameter

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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) areThe fluid field in the annular plenum between the pressure vessel and the core barrel of the1:5 model

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

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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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Research and development of a high-quality thermal-stress online monitoring model for the 600 MW turbine

ZHANG Hengliang, XIE Danmei, XIONG Yangheng, SUN Kunfeng

Frontiers in Energy 2007, Volume 1, Issue 3, Pages 322-326 doi: 10.1007/s11708-007-0047-1

Abstract: To monitor and control its thermal state, a rotor s temperature and thermal stress fields must be calculatedThe result shows that the analytical model gained has high quality and the computing course is very short

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Thermal fluid-structure interaction and coupled thermal-stress analysis in a cable stayed bridge exposed

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 609-628 doi: 10.1007/s11709-018-0452-z

Abstract: In this paper, thermal fluid structure-interaction (TFSI) and coupled thermal-stress analysis are utilizedThe results revealed that TFSI models and coupled thermal-stress models are significant in detecting

Keywords： fire scenario transient heat transfer TFSI model coupled thermal-stress XFEM

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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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A time−space porosity computational model for concrete under sulfate attack

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0985-7

Abstract: This study proposes a mechanical–chemical model to simulate the spatiotemporal distribution of the porosityIn addition, the expansion strain at the macro-scale is obtained using a stress analysis model of compositeThe results demonstrate that the expansion strains calculated using the suggested model agree well withThe proposed model can forecast and assess the porosity of concrete covers and provide a credible approach

Keywords： expansion deformation porosity internal expansion stress external sulfate attack mechanical–chemicalcoupling model

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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 fixedouter cylinder with fixed ends, is simulated by applying the development in Reynolds stress equationsresulted from the truncation error between the numerical solution and exact solution of the Reynolds stressBased on the numerical simulation results of the turbulent Taylor vortex flow, its characteristics suchperiodicity of axial velocity, the wave periodicity of pressure distribution, the polarization of shear stress

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Title Author Date Type Operation

Algebraic-stress Turbulent Model of Planar 2-D Pollutant Convection-Diffusion in Curvilinear Coordinates

Wu Xiuguang,Shen Yongming,Wang Min,Yang Zhifeng

Journal Article

Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranesby Algebraic Method

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Journal Article

Improved analytical model for residual stress prediction in orthogonal cutting

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

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

GE Bing, ZANG Shusheng, GU Xin

Journal Article

Multiscale model of micro curing residual stress evolution in carbon fiber-reinforced thermoset polymer

Xinyu HUI, Yingjie XU, Weihong ZHANG

Journal Article

Damage-constitutive model for seawater coral concrete using different stirrup confinements subjected

Journal Article

Predictive model to decouple the contributions of friction and plastic deformation to machined surfacetemperatures and residual stress patterns in finish dry cutting

Subhash ANURAG, Yuebin GUO,

Journal Article

The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

Large eddy simulation of turbulent buffet forces in flow induced vibration

XI Zhide, CHENG Bingde, LI Pengzhou

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

Research and development of a high-quality thermal-stress online monitoring model for the 600 MW turbine