fluid

FLUID MECHANICS

流体力学

Jin Xiaohong

金晓宏 Rong Zhijun 容芷君 Fu Liandong 付连东

FLUID POWER TRANSMISSION & CONTROL INSTITUTE

流体传动及控制研究所

MECHATRONIC CONTROL ENGINEERING DEPARTMENT

机械电子工程系

WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

武汉科技大学 2003.09

CONTENTS目录

1. Fluid Properties 流体性质

1.1 Definition of a fluid 流体定义

1.2 Force, Mass, Length, and Time Units 力、质量、长度和时间单位

1.3 Viscosity（流体的）粘性

1.4 Continuum（流体的）连续介质（假设）

1.5 Density, Specific Volume, Specific Weight, Specific Gravity, Pressure

密度、比容、重度、比重、压强 1.6 *Perfect Gas 理想气体

1.7 Bu

After review the quantum Hall effect on the fuzzy two-sphere $S^2$ and Zhang and Hu's 4-sphere $S^4$, the incompressible quantum Hall fluid on $S^2$, $S^4$ and torus are discussed respectively. Next, the corresponding Laughlin wavefunctions on $S^2$ are al

IncompressibleQuantumHallFluid

Bo-YuHou andDan-TaoPeng

InstituteofModernPhysics,NorthwestUniversity

Xi’an,710069,P.R.China

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Abstract

AfterreviewthequantumHalle ectonthefuzzytwo-sphereS2andZhangandHu’s4-sphereS4,theincompressiblequantumHall uid

JournalofFluidsandStructures24(2008)527–540

/locate/jfs

Fluid–structureinteractionbetweenatwo-dimensional

mat-typeVLFSandsolitarywavesby

theGreen–Naghditheory

D.Xiaa,R.C.Ertekinb,Ã,J.W.Kimc

b

INTECEngineeringPartnershipLtd.,15600JFKBlvd,Houston,TX77032,USA

DepartmentofOceanandResourcesEngineering,UniversityofHawaii,2540DoleSt.,HolmesHall402,Honolulu,HI96822,USA

c

TechnipUSA,11700OldKatyRd.,Suite150,Houston,TX77079,USA

Received1June2007;accepted22October2007

Availableonline7January2008

a

Abstract

Thetwo-dimensional,nonlinearhydroelast

基于fluid cavity 的气囊充气过程模拟

ABAQUS中的fluid cavity 功能可以模拟气体或者液体的行为，为不熟悉CFD 或不研究复杂的结构-气体（液体）相互作用的工程师提供了有效的计算手段。现有的fluid cavity的教程大多采用关键字的方法添加，实际上fluid cavity分析已经可以通过GUI来实现，并非不许编辑关键字。

本教程采用壳单元建立了三个圆形气囊，并采用fluid cavity模拟了三个独立气囊依次充气的过程。本教程仅为说明fluid cavity 功能的使用，材料参数等取值较为随意，并未采用气囊常用的橡胶材料或织物，如有偏差请谅解。

一、基础理论和背景知识

ABAQUS中的fluid cavity可以基于表面定义流体腔，流体腔的填充物可以使液体或气体。在采用隐式求解器的情况下可以计算气体（液体）-结构相互作用，在采用显示求解的情况下可以计算气体（液体）-结构的热力耦合问题。在定义fluid cavity时，系统自动生成流体单元，以F3D4单元为例，F3D4单元为5节点金字塔形单元，底面的四个点为流体腔壁处的节点，顶部的节点为流体腔参考节点，流体腔参考节点需位于流体腔内部。

图 1 F3D4 单元

F3D4单元

We conduct a numerical study of the dynamic behavior of a dense hard sphere fluid by deriving and integrating a set of Langevin equations. The statics of the system is described by a free energy functional of the Ramakrishnan-Yussouff form. We find that th

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aNonlinearhydrodynamicsofahardsphere uidneartheglasstransitionLisaM.LustandOriolT.VallsSchoolofPhysicsandAstronomyandMinnesotaSupercomputerInstitute,UniversityofMinnesota,Minneapolis,Minnesota55455-0149andChandanDasguptaDepartmentofPhysics,Ind

Research paper

Validation of lateral?uid?ow in an overpressured sand-shale sequence during development of Azeri-Chirag-Gunashli oil?eld and Shah Deniz gas?eld:South Caspian Basin,Azerbaijan

Rashid J.Javanshir a,1,Gregory W.Riley b,Stephan J.Duppenbecker c,*,

Nazim Abdullayev d

a BP1St James's Square,London,SW1Y4PD,UK

b BP Building F,Chertsey Road,Sunbury on Thames,TW167LN,UK

c BP Building C,Chertsey Road,Sunbury-on-Thames,TW167LN,UK

d BP153Neftchilar Avenue,Baku,AZ1010,Azerbaijan

a r t i c l e i n f o

Article history:

Received24Novem

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Violent Fluid-Structure Interaction simulations using a coupled SPH/FEM methodThis content has been downloaded from IOPscience. Please scroll down to see the full text.2010 IOP Conf. Ser.: Mater. Sci. Eng. 10 012041

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Violent Fluid-

Fluid slip along hydrophobic microchannel walls has been observed experimentally by Tretheway and Meinhart [Phys. Fluids, 14 (3) (2002) L9]. In this paper, we show how fluid slip can be modeled by the lattice Boltzmann method and investigate a proposed mec

JournalofComputationalPhysics202(2005)

181–195

/locate/jcp

Simulationof uidslipat3Dhydrophobicmicrochannel

wallsbythelatticeBoltzmannmethodq

LuodingZhu

a

ba,*,DerekTrethewayb,LindaPetzolda,b,CarlMeinhartbDepartmentofComputerScience,UniversityofCaliforniaSantaBarbara,SantaBarbara,

Fluid slip along hydrophobic microchannel walls has been observed experimentally by Tretheway and Meinhart [Phys. Fluids, 14 (3) (2002) L9]. In this paper, we show how fluid slip can be modeled by the lattice Boltzmann method and investigate a proposed mec

JournalofComputationalPhysics202(2005)

181–195

/locate/jcp

Simulationof uidslipat3Dhydrophobicmicrochannel

wallsbythelatticeBoltzmannmethodq

LuodingZhu

a

ba,*,DerekTrethewayb,LindaPetzolda,b,CarlMeinhartbDepartmentofComputerScience,UniversityofCaliforniaSantaBarbara,SantaBarbara,

Research paper

Validation of lateral?uid?ow in an overpressured sand-shale sequence during development of Azeri-Chirag-Gunashli oil?eld and Shah Deniz gas?eld:South Caspian Basin,Azerbaijan

Rashid J.Javanshir a,1,Gregory W.Riley b,Stephan J.Duppenbecker c,*,

Nazim Abdullayev d

a BP1St James's Square,London,SW1Y4PD,UK

b BP Building F,Chertsey Road,Sunbury on Thames,TW167LN,UK

c BP Building C,Chertsey Road,Sunbury-on-Thames,TW167LN,UK

d BP153Neftchilar Avenue,Baku,AZ1010,Azerbaijan

a r t i c l e i n f o

Article history:

Received24Novem