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turbulent boundary layer studies

Investigation into the flow physics of large experimental offshore wind farms in a
        turbulent boundary layer wind tunnel, John James Turner

Investigation into the flow physics of large experimental offshore wind farms in a turbulent boundary layer wind tunnel, John James Turner

... Corten et. al. aimed to get a basic understanding of the power production stabilization of wind farms with an 8 row and 3 column array of two bladed turbines. They also drew attention to the overestimate in efficiency of ...

197

A Study on the Turbulent Characteristics within the Hurricane Boundary Layer

A Study on the Turbulent Characteristics within the Hurricane Boundary Layer

... to turbulent mixing (Prandtl, ...micro-scales, studies suggested that there is a similar variation between the turbulent integral length scale, calculated from spatial correlation coeffi- cients, and ...

248

On the merging of turbulent spots in a supersonic boundary layer flow

On the merging of turbulent spots in a supersonic boundary layer flow

... and turbulent spots in a variety of ...of turbulent flow is the sum of the areas of individual turbulent ...synthetic turbulent boundary layer by triggering an array of spots in a ...

9

On the properties of turbulent boundary layer over polar cusps

On the properties of turbulent boundary layer over polar cusps

... The bicoherence has substantial value only if three pro- cesses, with the highest frequency being the sum of the lower frequencies, are phase coupled (cf. Consolini and Lui, 2000). The simplest such case is the harmonic ...

9

On the core flow and turbulent boundary layer in a curved duct

On the core flow and turbulent boundary layer in a curved duct

... such studies is the ratio h : a defined above. Many experimental studies of the three-dimensional turbulent core or turbulent boundary layer fiow through curved ducts are either ...

322

Laboratory modelling of the transfer processes between the ocean and atmosphere in the boundary layers

Laboratory modelling of the transfer processes between the ocean and atmosphere in the boundary layers

... atmospheric boundary surface layer (see, for example, [16] and references ...of studies argue that spray cause reducing of the aerodynamic resistance of the water surface at hurricane ...surface ...

8

Phytoplankton aggregations in a turbulent boundary layer

Phytoplankton aggregations in a turbulent boundary layer

... ubiquitously turbulent ocean. Many studies have also made comparisons between the spectra of phytoplankton distribution and inert tracers such as temperature and salin- ity (Seuront et ...

202

A simulation of a large-scale drifting snowstorm  in the turbulent boundary layer

A simulation of a large-scale drifting snowstorm in the turbulent boundary layer

... Prior studies have rarely consid- ered full-scale drifting snowstorms in the turbulent boundary layer; thus, the transportation feature of snow flow higher in the air and its contribution are ...

11

The Walker Function »

The Walker Function »

... of turbulent flows is known to be severely hampered by the extremely rapid variations in the mean and higher-order statistics in the near-wall ...early studies [1, 2, 3] showed that the basic structure of ...

9

Adjustment of a turbulent boundary layer to a 'canopy' of roughness elements

Adjustment of a turbulent boundary layer to a 'canopy' of roughness elements

... shear layer that forms at the top of the canopy (Hunt & Durbin 1999), and interaction between the boundary layer and canopy flows through eddies generated by a mixing-layer instability at ...

31

Spectral characteristics of turbulent boundary layers – comparison of Particle Image Velocimetry and Thermal Anemometry

Spectral characteristics of turbulent boundary layers – comparison of Particle Image Velocimetry and Thermal Anemometry

... the turbulent boundary layer (BL) over a rough surface, the lowest parts (the inner layer where the viscous forces are dominant, the buffer layer and lower part of the inertial ...

5

Influence of suboptimally forced streamwise streaks on the turbulent boundary layer and shear layer

Influence of suboptimally forced streamwise streaks on the turbulent boundary layer and shear layer

... by turbulent separated flows. These include turbulent boundary layer separation ...and turbulent shear layers ...in boundary layers can lead to loss of performance of the flow ...

56

Periodic Wall Blow/Suction Perturbation Evolution in Turbulent Boundary Layer

Periodic Wall Blow/Suction Perturbation Evolution in Turbulent Boundary Layer

... The experiment is carried out in the low-turbulent level wind tunnel of the Fluid Mechanics Laboratory of Tianjian University. The test section of wind tunnel is made of wood; the cross-section of the test section ...

8

Characteristics of Fiber Suspension Flow in a Turbulent Boundary Layer

Characteristics of Fiber Suspension Flow in a Turbulent Boundary Layer

... a turbulent boundary ...a turbulent channel ...profile, turbulent kinetic energy, Reynolds stress, turbulent dissipation rate and eddy viscosity coefficient are ...the turbulent ...

13

Perturbation Analysis of “k—ω” and “k—ε” Turbulent Models. Wall Functions

Perturbation Analysis of “k—ω” and “k—ε” Turbulent Models. Wall Functions

... Compartment showed poor results and hight κ. We explain it as comparison of compressible and incompressible flow, not enough dense mesh, σ ∗ = 0.5 instead σ ∗ = 1 as was evaluated. More tests are required and work ...

5

Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets

Wall-Pressure Fluctuations of Modified Turbulent Boundary Layer with Riblets

... The pressure drop in Figure 3 is clearly reduced when the groove space is 1000, 1333, and 2000 μm, with clearly distinguished low stable pressure drop areas. But interestingly to note that those stabilized areas of ...

13

The Effect of Curvature on the Transition from Laminar to the Turbulent Boundary Layer

The Effect of Curvature on the Transition from Laminar to the Turbulent Boundary Layer

... we see that the effect of curvature is to increase the boundary lsyer thickness on the convex side of the sheet and to decrease it on the concave side for both the laminar and the turbul[r] ...

70

Theoretical investigation of turbulent boundary layer over a wavy surface

Theoretical investigation of turbulent boundary layer over a wavy surface

... In turbulent shear flow at large Reynolds number, away from the wall, production and dissipation of energy are nearly of the same order of magnitude, though they P-1.ay not exactly balan[r] ...

104

An experimental investigation of the turbulent boundary layer over a wavy wall

An experimental investigation of the turbulent boundary layer over a wavy wall

... viii LIST OF FIGURES Number Title Page 1 Wind Tunnel-General View 68 2 Experimental Set- Up 69 3 Wavy Wall Models - Details of Construction 70 4 Wavy Wall Models 71 5 Shape of Wavy Wall [r] ...

204

BODY DRAG, FEATHER DRAG AND INTERFERENCE DRAG OF THE MOUNTING STRUT IN A PEREGRINE FALCON,FALCO PEREGRINUS

BODY DRAG, FEATHER DRAG AND INTERFERENCE DRAG OF THE MOUNTING STRUT IN A PEREGRINE FALCON,FALCO PEREGRINUS

... drag coefficient body drag coefficient skin friction coefficient, laminar boundary layer skin friction coefficient, turbulent boundary layer drag on an object body drag erroneous body dr[r] ...

20

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