B-1 AFT nacelle flow visualization study
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National Aeronautics and Space Administration, National Technical Information Service, distributor , [Washington, DC, Springfield, Va
B-1 aircraft., Nacelles., Flow visualization., Flight tests., High speed photography., Cam
|Statement||James L. Gunter and Robert Celniker.|
|Series||[NASA contractor report] -- NASA CR-127493.|
|Contributions||Celniker, Robert., United States. National Aeronautics and Space Administration.|
|The Physical Object|
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The objectives of this initial portion of the B-I aft nacelle flow visuali- zation program were to (I) conduct studies leading to selection of both a flow visualization technique and a camera, and (2) perform design studies to install the camera and the flow visualization devices.
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B-1 AFT nacelle flow visualization study. [James L Gunter; Robert Celniker; United States. National Aeronautics and Space Administration.]. B-1 AFT Nacelle Flow Visualization Study. By Robert Celniker.
Abstract. A 2-month program was conducted to perform engineering evaluation and design tasks to prepare for visualization and photography of the airflow along the aft portion of the B-1 nacelles and nozzles during flight test.
Several methods of visualizing the flow were Author: Robert Celniker. A flow visualization study was made in the 9 × 9-inch supersonic wind tunnel at Wichita State University to examine shock and boundary layer flow interaction for a nacelle in close proximity to the lower surface of a simulated Size: 1MB.
This is the 2nd edition of the book, Flow Visualization: Techniques and Examples, which was published by Imperial College Press in Many of the chapters have been revised and updated to take into consideration recent changes in a number of flow visualization and measurement techniques, including an updated high quality flow : TEE TAI LIM.
A wide range of active flow control studies can be found on the subjects of flow mechanism [10,11], comparison of effectiveness of different actuators [12, 13], parameter studies including.
The parameters that must be measured include the flow rate of the water and air, the pressure in the inlet and outlet of the multiphase pump, the rotational speed n and so on.
The LWQ series of turbine meter, whose measuring range is from 5 m 3 /h to m 3 /h, is used to measure the gas flow rate; the accuracy grade of the meter reaches %.
The LW80 series of B-1 AFT nacelle flow visualization study book flow meter, whose Cited by: The results in figure 20 show the pressure distribution on the nacelle and blade surfaces as well as on a plane perpendicular to the axis of rotation at the aft end of the nacelle.
The flow field pressures were taken from the flow field of the rear row and show near-field acoustic pressure perturbations spiraling out into the flow. This is the 2nd edition of the book, Flow Visualization: Techniques and Examples, which was published by Imperial College Press in Many of the chapters have been revised and updated to take into consideration recent changes in a number of flow visualization and measurement techniques, including an updated high quality flow gallery.
Some Principles of Flow Visualization Techniques in Wind Tunnels Proceedings of 82nd rdThe IIER International Conference, Berlin, Germany, 3 -4th OctoberISBN: 17 Fig. Frame de Figure two strands of LED UV illuminator with LEDs show flow around the model with α = Size: 2MB.
Flow Visualization Paperback – December 3, by Wolfgang Merzkirch (Author) out of 5 stars 1 rating. See all 5 formats and editions Hide other formats and editions. Price New from Used from eTextbook "Please retry" $ — 5/5(1).
A flow visualization study was made in the 9 x 9 inch supersonic wind tunnel at Wichita State University to examine shock and boundary layer flow interaction for a nacelle in close proximity to.
The role of the flow visualization in providing the necessary insight for the development of theoretical models of complex afterbody and base flows is described.
Methods of calculating the turbulent base pressure for axisymmetric configurations are discussed. Emphasis is placed on the treatment of supersonic flows for cylindrical, boattail, and flare bodies as well as sharp and blunt Cited by: 3.
to flow speed, flow direction was also analyzed via a five-hole multi-directional probe and surface flow visualization techniques. Experimental flow analysis in this study was conducted to support computational models and to provide insight into techniques that may further improve the flow characteristics within the bypass flow region.
View Flow Visualization Research Papers on for free. Experimental aerodynamic investigations of the NASA Common Research Model have been conducted in the NASA Langley National Transonic Facility and the NASA Ames 11 ft wind tunnel.
Data have been obtained at chord Reynolds numbers of 5 million for five different configurations at both wind tunnels. Force and moment, surface pressure, and surface flow visualization data were obtained in both Cited by: A computational fluid dynamics (CFD) study was performed on the flow meter model to confirm workability, but the flow meter still failed.
Description B-1 AFT nacelle flow visualization study FB2
A flow visualization test was performed using a frequency controlled pump to feed a clear model with three flow meters downstream. Each meter allowed a different flow rate to be measured.
In The Maritime Engineering Reference Book, Composite propeller blades. Although all propellers are subject to hydroelastic effects the isotropic behaviour of the conventional propeller metals tends generally to reduce these effects to negligible proportions except for highly biased skew or particularly specialized designs.
The anisotropic behaviour of carbon fibre composites. Flow Visualization: Techniques and Examples. Figure Chemical structure and emission spectra for 1-BrNp in CDs with (B) and without (A) added alcohol (from Gendrich, ).
rience m of displacement after 5 ms. Such a displacement is readily mea-surable. Obviously, displacement, and, correspondingly, measurement accuracy, increases as.
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invite the waves to flow over your toes and ankles. You watch the waves glide smoothly towards you, gently sweeping around your feet, and the trails of sea water that flow slowly back out again.
The cool water feels soft and comforting as you enjoy a few moments allowing yourself to gaze out on the far reaching Size: 91KB.
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Two-phase Flow Visualization Study (x=, Tsat=30oC, G=kg/m2s) S2TS Lab. Micro Motion Coriolis Flow and Density Measurement Recommended for you. A high enthalpy wind tunnel is intended to study flow of air around objects moving at speeds much faster than the local speed of sound (hypersonic speeds).
"Enthalpy" is the total energy of a gas stream, composed of internal energy due to temperature, the product of pressure and volume, and the velocity of flow.
Duplication of the conditions of. Abstract. Time-resolved PIV was applied to study fully developed sheet cavitation on a hydrofoil with a spanwise varying angle of attack.
The hydrofoil was designed to have a three-dimensional cavitation pattern closely related to propeller cavitation, studied for its adverse effects as vibration, noise, and erosion by: Title: Flow Visualization Techniques for Flight Research Author: David F.
Fisher and Robert R. Meyer, Jr. Subject: H Keywords: Boundary layer transition, Flight testing, Flow visualization, Vortex fl ow. This book is much more than a set of static rules for making visualizations. It taps into both well-established and cutting-edge research in visual perception and neuroscience, as well as the emerging field of visualization science, to explore why good charts /5.
Cengel fluid mechanics 6 ; Cengel fluid mechanics 6 | Author: Leandro Cavalheiro Fundamentals of Flow Visualization 5–5 5–6 5–7 1 lbf W.
( lbm)( ft/s2)a b. lbf lbm % ft/s2 Discussion Mass is the same regardless of its location. However, on some other planet. The flow visualization technique is a promising non-intrusive method to illustrate the complex flow field spatially and temporally.
A basic flow visualization setup consists of a high-powered laser and optic lenses to generate the laser sheet, a camera, a tracer particle generator, and a data by: 1. The Begell Digital Library Journals Collection is a consolidated and peer-reviewed collection of leading academic, research, and applied work in the fields of engineering and biomedical sciences.
All journals are peer reviewed for academic and professional communities and provide information in the fields of thermal & fluids engineering, heat & mass transfer, multiphase systems, fluid dynamics.
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4 FLUID FLOW FOR CHEMICAL ENGINEERS done by experimental flow visualization or by calculating the velocityfield. The terms ‘path’, ‘streakline’ and ‘streamline’ have different meanings. Consider a flow visualization study in which a small patch of dye is .The Whitcomb area rule, also called the transonic area rule, is a design technique used to reduce an aircraft's drag at transonic and supersonic speeds, particularly between Mach and This is one of the most important operating speed ranges for commercial and military fixed-wing aircraft today, with transonic acceleration being considered an important performance metric for combat.
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