国家自然科学基金(11072236)

作品数:9被引量:8H指数:2
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Interaction between strain and vorticity in compressible turbulent boundary layer
《Science China(Physics,Mechanics & Astronomy)》2014年第12期2316-2329,共14页CHU You Biao WANG Li LU Xi Yun 
supported by the National Natural Science Foundation of China(Grant Nos.11132010 and 11072236);the 111 Project(GrantNo.B07033)
The interaction of strain and vorticity in compressible turbulent boundary layers at Mach number 2.0 and 4.9 is studied by direct numerical simulation(DNS)of the compressible Navier-Stokes equations.Some fundamental c...
关键词:direct numerical simulation compressible flow turbulent boundary layer 
Large Eddy Simulation of a Vortex Ring Impacting a Bump
《Advances in Applied Mathematics and Mechanics》2014年第3期261-280,共20页Heng Ren Ning Zhao Xi-Yun Lu 
the National Natural Science Foundation of China(Grants 11132010,11372304 and 11072236);the 111 Project(Grant B07033)。
A vortex ring impacting a three-dimensional bump is studied using large eddy simulation for a Reynolds number Re=4×104 based on the initial diameter and translational speed of the vortex ring.The effects of bump heig...
关键词:Large eddy simulation vortex ring vortical structure turbulent state. 
Large eddy simulation of a vortex ring impinging on a three-dimensional circular cylinder被引量:1
《Theoretical & Applied Mechanics Letters》2013年第3期46-50,共5页Heng Ren Xiyun Lu 
supported by the National Natural Science Foundation of China (11132010 and 11072236);the 111 Project (B07033)
Abstract A vortex ring impacting a three-dimensional circular cylinder is studied using large eddy simulation (LES) for a Reynolds number Re = 4 × 10^4 based on the initial translation speed and diameter of the vor...
关键词:large eddy simulation vortex ring circular cylinder vortical structure high Reynoldsnumber 
Effects of the injector geometry on a sonic jet into a supersonic crossflow被引量:3
《Science China(Physics,Mechanics & Astronomy)》2013年第2期366-377,共12页WANG GuoLei CHEN LiWei LU XiYun 
supported by the National Natural Science Foundation of China(Grant Nos.11132010 and 11072236)
Large-eddy simulation of a sonic injection from circular and elliptic injectors into a supersonic crossflow has been performed.The effects of injector geometry on various fundamental mechanisms dictating the intricate...
关键词:large-eddy simulation compressible turbulence supersonic flow JET shock wave shock and turbulence interaction 
A numerical study of fluid injection and mixing under near-critical conditions
《Acta Mechanica Sinica》2012年第3期559-571,共13页Hua-Guang Li Xi-Yun Lu Vigor Yang 
supported in part by the National Natural Science Foundation of China (11132010 and 11072236)
Nitrogen injection under conditions close vicinity of the liquid-gas critical point is studied numerically. The fluid thermodynamic and transport properties vary drasti- cally and exhibit anomalies in the near-critica...
关键词:Liquid-gas critical point Real-fluid Fluid in-jection Shear layer instability Vortical dynamics 
A Consistent Characteristic Boundary Condition for General Fluid Mixture and Its Implementation in a Preconditioning Scheme被引量:1
《Advances in Applied Mathematics and Mechanics》2012年第1期72-92,共21页Hua-Guang Li Nan Zong Xi-Yun Lu Vigor Yang 
This work was supported in part by the National Natural Science Foundation of China(Nos.11132010 and 11072236).
Characteristic boundary conditions that are capable of handling general fluid mixtures flow at all flow speeds are developed.The formulation is based on fundamental thermodynamics theories incorporated into an efficie...
关键词:Real-fluid preconditioning method method of characteristics LODI relations 
The Effect of Mach Number on Turbulence Behaviors in Compressible Boundary Layers被引量:1
《Chinese Physics Letters》2011年第6期190-193,共4页WANG Li LU Xi-Yun 
by the National Natural Science Foundation of China(No 11072236);the 111 Project(No B07033);the Funda-mental Research Funds for the Central Universities(No WK2090050007).
The effects of Mach number on turbulence behaviors are investigated by means of direct numerical simulation of compressible turbulent boundary layers with the free-stream Mach numbers 2,4 and 6.Some typical turbulent ...
关键词:TURBULENT TURBULENCE QUANTITIES 
DIRECT NUMERICAL SIMULATIONS OF TURBULENT CHANNEL FLOWS WITH CONSIDERATION OF THE BUOYANCY EFFECT OF THE BUBBLE PHASE
《Journal of Hydrodynamics》2011年第3期282-288,共7页LIU Nan-sheng CHENG Bao-guo QUE Xia LU Xi-yun 
supported by the National Natural Science Foundation of China(Grant Nos.10772173,10972211 and 11072236);the Fundamental Research Funds for the Central Universities;the Science and Technology Innovation Foundation of the Chinese Academy of Sciences(Grant No.CXJJ-11-M69)
Turbulent channel flows with consideration of the buoyancy effect of the bubble phase is investigated by means of the Direct Numerical Simulation (DNS). This two-phase system is solved by a two-way coupling Lagrangi...
关键词:Direct Numerical Simulations (DNS) turbulent bubbly flow upflow/downflow turbulence fluctuations bubble statistics turbulence structures 
Effects of the jet-to-crossflow momentum ratio on a sonic jet into a supersonic crossflow被引量:2
《Theoretical & Applied Mechanics Letters》2011年第1期53-57,共5页Guo-Lei Wang~(a)) and Xi-Yun Lu~(b)) Department of Modern Mechanics,University of Science and Technology of China,Hefei,Anhui 230026,China 
supported by the National Natural Science Foundation of China(11072236);the Fundamental Research Funds for the Central Universities(WK2090050007)
Numerical investigation of a transverse sonic jet injected into a supersonic crossflow was carried out using large-eddy simulation for a free-stream Mach number M = 1.6 and a Reynolds number Re = 1.38×10~5 based on t...
关键词:large-eddy simulation compressible turbulent flow jet into supersonic CROSSFLOW 
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