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Numerical Simulation of Rotor/Stator Interaction in Turbomachinery by Use of a Disturbance Vortex Method

Chen Maozhang,Peng Bo

Strategic Study of CAE 2000, Volume 2, Issue 2,   Pages 15-23

Abstract:

A disturbance vortex method for simulating rotor/stator interaction in turbomachinery was developedThis method has some obvious advantages in simulating unsteady flow in turbomachinery, such as understandableaim to lay down a solid mathematical and physical foundation for the disturbance vortex method.From the simulation results it can seen that the disturbance vortex method still converges fast evendisturbance motion.

Keywords： turbomachinery     rotor/stator interaction     disturbance vortex method     compressible flow     unsteady flow    

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Investigation of vortical flows over oscillating body using fast Lagrangian vortex method

Baoshan ZHU ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 297-306 doi: 10.1007/s11708-009-0010-4

Abstract: A computational method facilitating long-time and high-resolution unsteady vortical flows is developedwith the advantages of the discrete vortex methods.The effectiveness of the present method is examined by comparing the numerical results of unsteady separatedInteresting results about vortex shedding patterns and lock-in characteristics are provided for the thin

Keywords： unsteady vortical flows     fast vortex method     vortex shedding     rotational oscillation     thin cambered blade    

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Application of a Novel Fuzzy Clustering Method Based on Chaos Immune Evolutionary Algorithm for Edge

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 85-89 doi: 10.1007/s11465-005-0023-6

Abstract:

A novel fuzzy clustering method based on chaos immune evolutionary algorithm (CIEFCM) is presentedIn CIEFCM, a tiny disturbance is added to a filial generation group using a chaos variable and the disturbanceThe experimental results show that the method not only can correctly detect the fuzzy edge and exiguous

Keywords： disturbance amplitude     disturbance     diversity     generation     processing    

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An overview of vortex-induced vibration (VIV) of bridge decks

Teng WU, Ahsan KAREEM

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 335-347 doi: 10.1007/s11709-012-0179-1

Abstract: A brief overview of vortex-induced vibration (VIV) of circular cylinders is first given as most of VIV

Keywords： vortex-induced vibration (VIV)     Volterra series     bridge    

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Development of an axial-type fan with an optimization method

Chong-hyun CHO, Soo-yong CHO, Chaesil KIM,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 414-422 doi: 10.1007/s11708-009-0038-5

Abstract: a flowrate of 416.6m/min is developed using an optimization technique based on the gradient methodoptimization of the fan blade, a three-dimensional axial-type fan blade is designed based on the free-vortexmethod along the radial direction.Through these procedures, an initial axial-fan blade designed by the free vortex method is modified toThe experimental and numerical tests show that this optimization method can improve the efficiency and

Keywords： axial-type fan     gradient method     free-vortex method     design variable     total pressure     static pressure     operating    

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Kinetic energy based model assessment and sensitivity analysis of vortex induced vibration of segmental

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 480-501 doi: 10.1007/s11709-017-0435-5

Abstract: Bridge decks are created in ABAQUS CFD program with the support of MATLAB codes to simulate and analyze vortexTwo benchmarks from the literature Von Karman and Dyrbye and Hansen are considered to validate the vortexLatin hypercube experimental method is dedicated to generate the surrogate models for the kinetic energyperformed very well in revealing the rational effects and the roles of each parameter in the generation of vortexshedding and predicting vortex induced vibration of the deck.

Keywords： vortex induced vibration     reynolds number     kinetic energy     vorticity     latin hypercube sampling    

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Modal disturbance investigation of rod-shaped ultrasonic motor using bending vibrations

ZHANG Jiantao, ZHU Hua, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 343-347 doi: 10.1007/s11465-008-0058-6

Abstract: Modal disturbance of a rod-shaped ultrasonic motor using bending vibrations can cause problems such asIn this paper, a dynamic analysis model of a stator is created on the basis of the finite element methodAccordingly, the structure parameters of the stator are modified to separate working modes from disturbanceThe frequency separation between working modes and disturbance modes is more than 2 kHz.The validity of the method is verified.

Keywords： Hamilton principle     disturbance     separation     frequency separation     dynamic analysis    

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Numerical investigation and analysis of heat transfer enhancement in channel by longitudinal vortex based

TAO Wenquan, WU Junmei

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 71-78 doi: 10.1007/s11708-008-0001-x

Abstract: The effects of Reynolds number (from 800 to 3 000), the attack angle of vortex generator (from 15° to90°) and the shape of vortex generator were examined.The longitudinal vortex improves the field synergy of the large downstream region of longitudinal vortexregion near vortex generator.vortex can only enhance the local heat transfer.

Keywords： inherent mechanism     integral     surface     rectanglar     longitudinal    

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Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted vortex

Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 333-345 doi: 10.1007/s11708-009-0061-6

Abstract: If vortex generators (VGs) are punched on the fin surface, the heat transfer performance of the fin can

Keywords： heat transfer enhancement     vortex generator     finned flat tube bank     heat exchanger    

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Aerodynamic interference effects and mitigation measures on vortex-induced vibrations of two adjacent

Xiaoliang MENG, Ledong ZHU, Zhenshan GUO

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 510-517 doi: 10.1007/s11709-011-0129-3

Abstract: with semi- and full-closed bridge decks, the aerodynamic interference between the two decks on the vortex-inducedtunnel tests with a spring-suspended sectional model aided with computational fluid dynamics (CFD) method

Keywords： separated parallel decks     vortex-induced vibration     aerodynamic interference     aerodynamic mitigation measure    

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Investigation of flow dynamics and decrease of vortex noise inside volute of centrifugal fans

LI Chunxi, WANG Songling

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 235-240 doi: 10.1007/s11708-008-0040-3

Abstract: anti-vortex rings were added separately.vortices were broken effectively and the flow fields inside the fan were more uniform with the two anti-vortexrings were effective in decreasing vortex noise.The cone-cylinder-shaped anti-vortex ring was more effective than the cylinder-shaped one in breakinglarge-scale vortexes and decreasing vortex noise.

Keywords： cylinder-shaped     evolution     computational     effective     large-scale    

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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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Influence of fluid-structure interaction on vortex induced vibration and lock-in phenomena in long span

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 363-384 doi: 10.1007/s11709-016-0353-y

Abstract: It was concluded that the two-way approach predicts earlier vortex induced vibration for lower critical

Keywords： vortex-induced vibration     fluid-structure interaction     Strouhal number     lock-in     kinetic energy    

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Virtual reality system of manned maneuvering unit taking into consideration the disturbance from an astronaut

CHENG Jian, FAN Xiu-min, XU An, HONG Xin, HUANG Wei-dong

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 282-287 doi: 10.1007/s11465-006-0042-y

Abstract: Based on the dynamics/kinematics model of an astronaut equipped with an MMU, a disturbance model of theFinally, the paper presents two different results between loading and unloading the disturbance modelThe MMU virtual reality provides a new method for the simulation of real space walking, and also a perfectmethod for developing prototype MMU.

Keywords： real-time emendation     disturbance     maneuvering     MMU     correction    

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A Simplified Nonlinear Model of Vertical Vortex-Induced Force on Box Decks for Predicting Stable Amplitudesof Vortex-Induced Vibrations

Le-Dong Zhu, Xiao-Liang Meng, Lin-Qing Du, Ming-Chang Ding

Engineering 2017, Volume 3, Issue 6,   Pages 854-862 doi: 10.1016/j.eng.2017.06.001

Abstract: of force and vibration responses were carried out to investigate the nonlinear behaviors of vertical vortex-inducedThe mechanisms of the onset, development, and self-limiting phenomenon of the vertical vortex-induced

Keywords： Box deck of bridge     Vertical vortex-induced vibration     Vertical vortex-induced force     Simplified nonlinear    

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Title Author Date Type Operation

Numerical Simulation of Rotor/Stator Interaction in Turbomachinery by Use of a Disturbance Vortex Method

Chen Maozhang,Peng Bo

Journal Article

Investigation of vortical flows over oscillating body using fast Lagrangian vortex method

Baoshan ZHU ,

Journal Article

Application of a Novel Fuzzy Clustering Method Based on Chaos Immune Evolutionary Algorithm for Edge

Journal Article

An overview of vortex-induced vibration (VIV) of bridge decks

Teng WU, Ahsan KAREEM

Journal Article

Development of an axial-type fan with an optimization method

Chong-hyun CHO, Soo-yong CHO, Chaesil KIM,

Journal Article

Kinetic energy based model assessment and sensitivity analysis of vortex induced vibration of segmental

Nazim Abdul NARIMAN

Journal Article

Modal disturbance investigation of rod-shaped ultrasonic motor using bending vibrations

ZHANG Jiantao, ZHU Hua, ZHAO Chunsheng

Journal Article

Numerical investigation and analysis of heat transfer enhancement in channel by longitudinal vortex based

TAO Wenquan, WU Junmei

Journal Article

Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted vortex

Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,

Journal Article

Aerodynamic interference effects and mitigation measures on vortex-induced vibrations of two adjacent

Xiaoliang MENG, Ledong ZHU, Zhenshan GUO

Journal Article

Investigation of flow dynamics and decrease of vortex noise inside volute of centrifugal fans

LI Chunxi, WANG Songling

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

Influence of fluid-structure interaction on vortex induced vibration and lock-in phenomena in long span

Nazim Abdul NARIMAN

Journal Article

Virtual reality system of manned maneuvering unit taking into consideration the disturbance from an astronaut

CHENG Jian, FAN Xiu-min, XU An, HONG Xin, HUANG Wei-dong

Journal Article

A Simplified Nonlinear Model of Vertical Vortex-Induced Force on Box Decks for Predicting Stable Amplitudesof Vortex-Induced Vibrations

Le-Dong Zhu, Xiao-Liang Meng, Lin-Qing Du, Ming-Chang Ding

Journal Article