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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Prandtl Boundary Layer in An Infinitely Long Convergent Channel
无穷长 收敛通道 Prandtl边界层
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2023/11/7
This talk is about the large Reynold number limits and asymptotic behaviors of solutions to the 2D steady Navier-Stokes equations in an infinitely long convergent channel. We will show that for a gene...
Vortex Filament Simulation of the Turbulent Boundary Layer
Vortex Filament Simulation Turbulent Boundary Layer
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2016/5/18
A hybrid vortex fi lament scheme with the capability of simulating bounded turbulent fl ows is described. Viscous generation of new vortex elements at solid surfaces is accomplished through the interm...
Investigations on convective boundary layer turbulence using SODAR data
convective boundary layer acoustic sounding turbulence
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2015/9/16
Acoustic sounding (SODAR) data collected in convective conditions were analysed to estimate high order
statistics of the vertical velocity in the lower half of the Convective Boundary Layer (CBL). Li...
DELAYING TRANSITION FURTHER WITH THE AID OF A SHORT COMPLIANT PANEL IN A BLASIUS BOUNDARY LAYER FLOW
compliant boundary layer wavepackets
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2014/5/4
The cost of fuelling especially for those in the transport industries could be reduced drastically if there is a means of reducing drag force over their vehicles while in motion. One way to overcome t...
Hydrodynamics of intertidal oyster reefs: The influence of boundary layer flow processes on sediment and oxygen exchange
fi ltration respiration turbulence Crassostrea virginica
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2014/4/1
An intertidal Crassostrea virginica oyster reef was instrumented to quantify processes affecting boundary
layer flow, suspended sediment deposition and erosion, and the flux of oxygen to ...
Hydrodynamics of intertidal oyster reefs: The influence of boundary layer flow processes on sediment and oxygen exchange
fi ltration respiration turbulence Crassostrea virginica
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2014/4/1
An intertidal Crassostrea virginica oyster reef was instrumented to quantify processes affecting boundary
layer flow, suspended sediment deposition and erosion, and the flux of oxygen to ...
Boundary layer flow over a moving surface in a nanofluid with suction or injection
Nanofluid Moving plate Boundary layer Suction/injection Dual solutions
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2012/2/24
An analysis is performed to study the heat transfer characteristics of steady two-dimensional boundary layer flow past a moving permeable flat plate in a nanofluid. The effects of uniform suction and ...
A Comment Upon Previous Studies on 3-D Boundary Layer Transition
3-D Boundary Layer Transition
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2009/10/15
The common feature of the experimental studies upon 3-D boundary layer development on swept flat plates cited in the available literature is the application of streamwise and/or spanwise pressure grad...
MEASUREMENTS OF HIGHER-ORDER TURBULENT STATISTICS IN A TURBULENT BOUNDARY LAYER SUBJECTED TO A SHORT ROUGHNESS STRIP
measurements turbulence boundary layer
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2009/10/14
Hot-wire measurements have been undertaken in a turbulent boundary layer which is subjected to an impulse in form of a short roughness strip with the aim of determining its effect on turbulence struct...
COMBINED OF MAGNETIC FIELD AND THERMOPHORESIS PARTICLE DEPOSITION IN FREE CONVECTION BOUNDARY LAYER FROM A VERTICAL FLAT PLATE EMBEDDED IN A POROUS MEDIUM
mass transfer magnetic field thermophoresis
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2009/10/14
Deals with heat and mass transfer by steady laminar boundary layer flow of Newtonian, viscous fluid over a vertical flat plate embedded in a fluid-saturated porous medium in the presence of thermophor...
PERSISTENCE OF THE LAMINAR REGIME IN A FLAT PLATE BOUNDARY LAYER AT VERY HIGH REYNOLDS NUMBER
transition flow control boundary layer theory
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2009/10/13
Starting from the Navier-Stokes and the continuity equations of a viscous incompressible fluid, a statistical theory is developed for the prediction of transition and break down to turbulence in a lam...
VALIDATION OF THE COMPUTATIONAL FLUID DYNAMICS (CFD) METHOD FOR PREDICTING WIND FLOW AROUND A HIGH-RISE BUILDING (HRB) IN AN URBAN BOUNDARY LAYER CONDITION
CFD High-Rise residential building Urban wind
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2010/9/28
Virtual Experiments or, more specifically, the Computational Fluid Dynamics (CFD) method have been used in numerous airflow studies. Most CFD code providers claim that their software can simulate and ...
Frictional Drag Reduction by the Nonlinear Effect of an Unsteady Boundary Layer
Drag Reduction Additional Pressure Gradient Apparent Friction Force Skin Friction Flat Plate Unsteady Boundary Layer
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2009/5/12
An unsteady boundary layer past an elastic flat plate with a leading fixed edge and a surging trailing edge was investigated utilizing both numerical and analytical methods. Analytical solutions for l...
Control of the laminar boundary layer around a profile by suction
boundary layer laminar two-dimensional
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2010/9/27
A laminar and two-dimensional incompressible boundary layer around a profile and its control using suction is studied numerically. The study is based on the Prandtl boundary layer model. Using the met...
Turbulence Scales Simulations in Atmospheric Boundary Layer Wind Tunnels
Wind Tunnels Atmospheric Boundary Layer
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2010/8/11
The simulation of the air flow over models in atmospheric boundary layer tunnels is a research domain based on advanced scientific technologies imposed by the necessity of studying the turbulent fluid...