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Albatross Flight in the Ocean Boundary Layer

Boundary Layer Transition Flight Experiment Overview

Boundary Layer Transition Flight Experiment Overview

... of boundary layer transition but did in many cases make interpretation of the data difficult and resulted in less accurate temperature measurements for certain portions of the ...quality flight data, ...

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Infrared Imaging of Boundary Layer Transition Flight Experiments

Infrared Imaging of Boundary Layer Transition Flight Experiments

... V. HYTHIRM Imaging As detailed in Ref. 9, the HYTHIRM project has multiple tasks, such as establishing an understanding of the capabilities and experience of national assets to obtain IR imagery, developing simulation ...

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Numerical Simulations of the Boundary Layer Transition Flight Experiment

Numerical Simulations of the Boundary Layer Transition Flight Experiment

... B. DPLR simulations Within DPLR, the best practices for modeling surface anomalies on the Shuttle is to use a local analysis approach, where an existing baseline solution for an undamaged Orbiter is interpolated and ...

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Recommendations for Hypersonic Boundary Layer Transition Flight Testing

Recommendations for Hypersonic Boundary Layer Transition Flight Testing

... and flight capability at Sandia National Laboratories 9 to conduct hypersonic flight ...pre-existing flight program, surface instrumentation for this proposal was quite mature, with heat shield ...

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The Flight of Albatross—How to Transform It into Aerodynamic Engineering?

The Flight of Albatross—How to Transform It into Aerodynamic Engineering?

... The flight of albatross (Diomedea exulans) takes advantage of the up-drift which is determined by the product of relative wind velocity and it’s gradient above the sea surface, to power its elegant ...

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Boundary Layer Transition Flight Experiment Overview and In-Situ Measurements

Boundary Layer Transition Flight Experiment Overview and In-Situ Measurements

... The data from the three flights also refutes hypothesis B, although not as directly as it refutes hypothesis A. The basis for this statement hinges on the methods used to develop the Version 2 of the BLT tool and the ...

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Boundary Layer Transition Flight Experiment Overview and In-Situ Measurements

Boundary Layer Transition Flight Experiment Overview and In-Situ Measurements

... associated thermocouples. Figure 13 is a graphic showing the turbulent wedge for an assumed disturbance location in addition to the thermocouples and associated BLT Mach numbers. The asy[r] ...

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A global perspective on Langmuir turbulence in the ocean surface boundary layer.

A global perspective on Langmuir turbulence in the ocean surface boundary layer.

... One reason, we argue, is that current parameterizations are missing key surface-wave processes that force Langmuir turbulence that deepens the OSBL more rapidly than steady wind forcing. Scaling arguments are presented ...

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Langmuir turbulence and surface heating in the Ocean Surface Boundary Layer

Langmuir turbulence and surface heating in the Ocean Surface Boundary Layer

... the boundary layer turbulence was resolved, with the shallowest simulated boundary layers being just over 10 m ...damping layer is imposed below 65 m to damp gravity waves and prevent their ...

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Flight speed and performance of the wandering albatross with respect to wind

Flight speed and performance of the wandering albatross with respect to wind

... the flight performance of wandering albatrosses Diomedea exulans soaring over the Southern ...which flight speed and performance of albatrosses is facilitated or constrained by wind conditions encountered ...

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In-Flight Boundary-Layer Transition of a Large Flat Plate at Supersonic Speeds

In-Flight Boundary-Layer Transition of a Large Flat Plate at Supersonic Speeds

... A flight experiment was conducted to investigate the pressure distribution, local-flow conditions, and boundary-layer transition characteristics on a large flat plate in flight at supersonic ...

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Flight Experiment Verification of Shuttle Boundary Layer Transition Prediction Tool

Flight Experiment Verification of Shuttle Boundary Layer Transition Prediction Tool

... hypersonic flight conditions, even though local conditions at the trip are actually supersonic due to its large angle of attack during ...the boundary layer transition results have been reviewed and ...

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In-Flight Boundary-Layer Transition on a Large Flat Plate at Supersonic Speeds

In-Flight Boundary-Layer Transition on a Large Flat Plate at Supersonic Speeds

... the boundary layer to turbulent and propagates as a wedge ...laminar boundary layers allow less heat to be transferred from the freestream to the surface (colder than freestream) than do turbulent ...

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Observations of turbulent fluxes and turbulence dynamics in the ocean surface boundary layer

Observations of turbulent fluxes and turbulence dynamics in the ocean surface boundary layer

... the ocean surface boundary layer can be explained by a gradient-transport model that includes the effects of wave breaking, buoyancy forcing, and shear ...surface layer have made limited ...

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HIFiRE-1 Turbulent Shock Boundary Layer Interaction - Flight Data and Computations

HIFiRE-1 Turbulent Shock Boundary Layer Interaction - Flight Data and Computations

... Figure 3 SBLI Transducer Layouts IV. Computations The computations proceeded in two stages. The first stage of computations consisted of calculations for test results from the CUBRC LENS wind tunnel. This permitted ...

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Instability WaveStreak Interactions in a High Mach Number Boundary Layer at Flight Conditions

Instability WaveStreak Interactions in a High Mach Number Boundary Layer at Flight Conditions

... The instabilities of optimal streaks with finite initial amplitudes in supersonic and hypersonic boundary layers has been recently addressed by Paredes et al. (2016a,c, 2017c). Furthermore, Paredes et al. (2017a) ...

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Space Shuttle Boundary Layer Transition Flight Experiment Ground Testing Overview

Space Shuttle Boundary Layer Transition Flight Experiment Ground Testing Overview

... the flight control surface deflections at the time of closest approach for the HYTHIRM observation and were tested at the flight specific angles of ...STS-119 flight image, captured at approximately ...

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Shuttle Return To Flight Experimental Results: Cavity Effects on Boundary Layer Transition

Shuttle Return To Flight Experimental Results: Cavity Effects on Boundary Layer Transition

... Test Model Description To support the cavity boundary layer transition testing, cast ceramic models (9.6-inch long from nose to body-flap hinge) were manufactured, all of which share a common construction ...

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Shuttle Return To Flight Experimental Results: Protuberance Effects on Boundary Layer Transition

Shuttle Return To Flight Experimental Results: Protuberance Effects on Boundary Layer Transition

... boundary layer transition database 5,6 ...a boundary layer transition perspective, and finally how large can a repair site be without adversely affecting the aerothermodynamic perfor- mance of ...

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Boundary-Layer Stabilization with Dielectric Barrier Discharge Plasmas for Free-Flight Application

Boundary-Layer Stabilization with Dielectric Barrier Discharge Plasmas for Free-Flight Application

... 8 Outlook This thesis answers highly relevant questions related to the physical mech- anisms of DBD transition delay, control effectiveness optimization and the applicability under non-laboratory conditions for higher ...

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