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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.pressure distribution of the flow field are calculated by integral formulations in combination with a fastThe 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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A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1472-9

Abstract:

• A spectral machine learning approach is proposed for predicting mixed antibiotic.

Keywords： Antibiotic contamination     Spectral detection     Machine learning    

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Multiscale stochastic finite element method on random field modeling of geotechnical problems – a fast

Xi F. XU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 107-113 doi: 10.1007/s11709-014-0268-4

Abstract: The Green-function-based multiscale stochastic finite element method (MSFEM) has been formulated basedIn this study a fast computing procedure based on the MSFEM is developed to solve random field geotechnicalA unique fast computing advantage of the procedure enables computation performed only on those locationssettlement shows that the procedure achieves significant computing efficiency compared with Monte Carlo method

Keywords： multiscale     finite element     settlement     perturbation     random field     geotechnical    

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Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 55-65 doi: 10.1007/s11465-019-0545-y

Abstract: When a fast-steering mirror (FSM) system is designed, satisfying the performance requirements before

Keywords： fast-steering mirror     structural parameter     PI controller     bandwidth     notch filter    

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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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A sampling method based on URL clustering for fast web accessibility evaluation

Meng-ni ZHANG,Can WANG,Jia-jun BU,Zhi YU,Yu ZHOU,Chun CHEN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 449-456 doi: 10.1631/FITEE.1400377

Abstract: To address this issue, we propose a novel page sampling method based on URL clustering for web accessibilityWe use a data set of 45 web sites to validate our method.Experimental results show that our URLSamp method is both effective and efficient for web accessibility

Keywords： Page sampling     URL clustering     Web accessibility evaluation    

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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 understandableconsideration with the aim to lay down a solid mathematical and physical foundation for the disturbance vortexmethod.From the simulation results it can seen that the disturbance vortex method still converges fast even

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

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A Fast Evaluation and Research Method for Exploration Potential of Oversea Basins

Hong-quan Kang,Yun-hua Deng,Huai-cun Jia,Tao Cheng,Bo Bai

Frontiers of Engineering Management 2016, Volume 3, Issue 4,   Pages 338-342 doi: 10.15302/J-FEM-2016052

Abstract: overseas basins with different exploration degrees and offers a new evaluation system and research methodfor fast evaluation and risk analysis on hydrocarbon potential.This new system and method, which is an effective system for fast basin evaluation, is suggested to be

Keywords： geological risk analysis     probability model     evaluation factors     oversea exploration     hydrocarbon exploration    

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A fast compound direct iterative algorithm for solving transient line contact elastohydrodynamic lubrication

Jian LIU,Yuxue CHEN,Zhenzhi HE,Shunian YANG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 156-167 doi: 10.1007/s11465-014-0297-7

Abstract:

A fast compound direct iterative algorithm for solving transient line contact elastohydrodynamicFirst, by introducing a special matrix splitting iteration method into the traditional compound directiterative method, the full matrices for the linear systems of equations are transformed into sparsebanded ones with any half-bandwidth; then, an extended Thomas method which can solve banded linear systemsalgorithm increases computing speed several times more than the traditional compound direct iterative method

Keywords： elastohydrodynamic lubrication     transient     line contact     matrix splitting iteration method     the Thomas method    

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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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Fast Marching Method for Microseismic Source Location in Cavern-Containing Rockmass: Performance Analysis Article

Ruochen Jiang, Feng Dai, Yi Liu, Ang Li

Engineering 2021, Volume 7, Issue 7,   Pages 1023-1034 doi: 10.1016/j.eng.2020.10.019

Abstract: high-accuracy location in a complex cavern-containing structure, this study develops an MS location methodusing the fast marching method (FMM) with a second-order difference approach (FMM2).In addition, our proposed method was applied to locate the recorded blasting and MS events that occurredThe location results of the blasting activities show that our method can effectively reduce the locationOur proposed method can offer a more accurate rock fracture location and facilitate the delineation of

Keywords： Fast marching method     Microseismic event location     Cavern-containing complex rock mass     Runge–Kutta method    

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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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Title Author Date Type Operation

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

Baoshan ZHU ,

Journal Article

A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning

Journal Article

Multiscale stochastic finite element method on random field modeling of geotechnical problems – a fast

Xi F. XU

Journal Article

Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Journal Article

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

Teng WU, Ahsan KAREEM

Journal Article

A sampling method based on URL clustering for fast web accessibility evaluation

Meng-ni ZHANG,Can WANG,Jia-jun BU,Zhi YU,Yu ZHOU,Chun CHEN

Journal Article

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

Chen Maozhang,Peng Bo

Journal Article

A Fast Evaluation and Research Method for Exploration Potential of Oversea Basins

Hong-quan Kang,Yun-hua Deng,Huai-cun Jia,Tao Cheng,Bo Bai

Journal Article

A fast compound direct iterative algorithm for solving transient line contact elastohydrodynamic lubrication

Jian LIU,Yuxue CHEN,Zhenzhi HE,Shunian YANG

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

Fast Marching Method for Microseismic Source Location in Cavern-Containing Rockmass: Performance Analysis

Ruochen Jiang, Feng Dai, Yi Liu, Ang Li

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