A KIND OF FAST CHANGING COHERENT STRUCTURE IN A TURBULENT BOUNDARY LAYER

来源 :Acta Mechanica Sinica | 被引量 : 0次 | 上传用户：yuyisea

【摘要】

：

Coherent structures of a turbulent boundary layer were investigatedby hydrogen bubble method.A kind of fast changing structure was observed.Thatis a spot in whi

【作者】

：

连淇祥

【机构】

：

InstituteofFluidMechanics

【出处】

：

Acta Mechanica Sinica

【发表日期】

：

1999年3期

【关键词】

：

TURBULENT boundary layer COHERENT STRUCTURE SMALL-SCALE STRUCTURE turbulent boun

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

Coherent structures of a turbulent boundary layer were investigatedby hydrogen bubble method.A kind of fast changing structure was observed.Thatis a spot in which all the hydrogen bubbles vanish much faster than in other regions.This investigation verifie

其他文献

ON THE MECHANISM OF THE FORMATION OF HORIZONTAL CRACKS IN A VERTICAL COLUMN OF SATURATED SAND

Extended horizontal cracks have been observed experimentally in avertical column of saturated sand when a flow of water is forced to percolate upwardthrough it.

期刊

LIQUEFACTIONcracksPERCOLATIONliquefaction cracks percolation

A STUDY ON THE MECHANISM OF HIGH-LIFT GENERATION BY AN AIRFOIL IN UNSTEADY MOTION AT LOW REYNOLDS NU

The aerodynamic force and flow structure of NACA 0012 airfoilperforming an unsteady motion at low Reynolds number (Re=100) are calculatedby solving Navier-Stoke

期刊

HIGH-LIFTAIRFOILFLAPPINGMOTIONlowREYNOLDSNUMBERhigh-lift airfoil flappi

外向并购中的人力资源管理风险与策略——以联想并购NECPC为例

实现跨国并购的成功关键在于有效整合双方企业的资源。由于跨文化因素的影响,跨国并购过程中人力资源的整合更具挑战性。在理论层面上,跨国并购中的人力资源管理风险主要能分

期刊

外向并购人力资源联想日本电气

ELECTROMECHANICAL DEFORMATION AND FRACTURE OF PIEZOELECTRIC/FERROELECTRIC MATERIALS

This review presents the progress and current status of the inves-tigation on electromechanical deformation and fracture of piezoelectric/ferroelectricmaterials

期刊

ELECTROMECHANICALDEFORMATIONelectricFRACTUREandFATIGUEpiezoelectric/ferroe

LARGE EDDY SIMULATION OF COMPLEX TURBULENT FLOWS:PHYSICAL ASPECTS AND RESEARCH TRENDS

In the current paper,we have primarily addressed one powerful simu-lation tool developed during the last decades——Large Eddy Simulation (LES),whichis most sui

期刊

LESenergyDISSIPATIONbackscatterlocalandNON-LOCALinteractionSGSmodelLES

ON NUMERICAL TECHNIQUES IN CFD

Numerical techniques play an important role in CFD.Some of themare reviewed in this paper.The necessity of using high order difference scheme isdemonstrated for

期刊

HighorderACCURATESCHEMEEULEREQUATIONSNAVIER-STOKESEQUATIONShigh order ac

LATTICE-BOLTZMANN MODEL FOR COMPRESSIBLE PERFECT GASES

We present an adaptive lattice Boltzmann model to simulate super-sonic flows.The particle velocities are determined by the mean velocity and internalenergy.The

期刊

latticeBOLTZMANNEulerEQUATIONN-SEQUATIONadaptiveVELOCITIESPERFECTgasla

TAILING WAVETRAIN GENERATION IN PRECURSOR SOLITON GENERATION IN TWO-LAYER FLOW

A theory of tailing wavetrain generation for the precursor solitongeneration in two-layer flow is presented by using averaged KdV equations(AKdV),which are deri

期刊

TAILINGwavetraingroupVELOCITYSOLITONtwo-layerFLOWtailing wavetrain group

OXYHYDROGEN COMBUSTION AND DETONATION DRIVEN SHOCK TUBE

The performance of combustion driver ignited by multi-spark plugsdistributed along axial direction has been analysed and tested. An improved ignitionmethod with

期刊

COMBUSTIONDRIVERDETONATIONDRIVERgaseousDETONATIONshocktubeshockTUNNELc

AN EXPERIMENTAL STUDY ON TURBULENT COHERENT STRUCTURES NEAR A SHEARED AIR-WATER INTERFACE

The turbulence structures near a sheared air-water interface wereexperimentally investigated with the hydrogen bubble visualization technique. Sur-face shear wa

期刊

AIR-WATERinterfacesurfaceSHEARCOHERENTSTRUCTURESflowVISUALIZATIONair-wat

A KIND OF FAST CHANGING COHERENT STRUCTURE IN A TURBULENT BOUNDARY LAYER

与本文相关的学术论文