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3 edition of Experimental results of the control of a vortical flow by tangential blowing found in the catalog.

Experimental results of the control of a vortical flow by tangential blowing

Experimental results of the control of a vortical flow by tangential blowing

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Published by Stanford University, Dept. of Aeronautics and Astronautics, National Aeronautics and Space Administration, National Technical Information Service, distributor in Stanford, Calif, [Washington, DC, Springfield, Va .
Written in English


Edition Notes

StatementN.J. wood and L. Roberts
SeriesNASA contractor report -- NASA CR-176932
ContributionsRoberts, L, United States. National Aeronautics and Space Administration
The Physical Object
FormatMicroform
Pagination1 v
ID Numbers
Open LibraryOL14982778M

Christian Breitsamter Editors New Results in Numerical and Experimental Fluid Numerical Investigation of Unsteady Tangential Blowing at the Rudder of a Vertical Tailplane Airfoil .. 39 Anna Kröhnert Part IV Laminar Flow Control and Transition.   A detailed experimental investigation to understand and quantify the development of loss and blockage in the flow field of a transonic, axial flow compressor rotor has been undertaken. Detailed laser anemometer measurements were acquired upstream, within, and downstream of a transonic, axial compressor rotor operating at design and off-design.

Experimental Investigation of the Flow Field in a Transonic, Axial Flow Compressor with Respect to the Development of Blockage and Loss [Sudder, Kenneth L., National Aeronautics and Space Administr] on *FREE* shipping on qualifying offers. Experimental Investigation of the Flow Field in a Transonic, Axial Flow Compressor with Respect to the Development of Blockage and LossCited by:   One of the methods of representing a turbocharger-turbine in the exhaust system of internal combustion engines is by assuming quasi-steady flow at turbine boundaries, while taking into account the generation of pressure waves both upstream and downstream of the turbine due to non-steady flow conditiCited by: 1.

New Results in Numerical and Experimental Fluid Mechanics X Contributions to the 19th STAB/DGLR Symposium Munich, Germany, Numerical Investigation of Unsteady Tangential Blowing at the Rudder of a Vertical Tailplane Airfoil. Dynamic Actuation for Brand: Springer International Publishing.   Active flow control techniques for separation control include synthetic jets [40], slot blowing [41], suction [42], vortex generator jets [], and more recently, plasma actuators [57]. Coupled with a feedback loop, active flow control can be adapted to any flight condition allowing for a controlled flow field regardless of the situation.


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Experimental results of the control of a vortical flow by tangential blowing Download PDF EPUB FB2

Get this from a library. Experimental results of the control of a vortical flow by tangential blowing. [N J Wood; L Roberts; United States. National Aeronautics and Space Administration.]. J Wood has written: 'Experimental results of the control of a vortical flow by tangential blowing' Asked in Physics, Mechanical Engineering, USB Flash Drives, US Marine Corps What is turbine.

An experiment has been conducted on axisymmetric bodies at Mach number M=6 and in the Reynolds number range R= to Tangential blowing of gas and surface cooling lead to elimination of the separated zone, for certain levels of blown gas flow rate and wall temperature.

The actual aerodynamic parameters in no-separation flow are close to the theoretical prediction for a Cited by: 9. Forebody Tangential Blowing (FTB) is a pneumatic device that modifies the vortical flow over the forebody of an aircraft operating at high angles of attack.

Modified vortical flow in turn creates. J Wood has written: 'Experimental results of the control of a vortical flow by tangential blowing' Asked in Authors, Poets, and Playwrights What has the author J S Harris written.

The rest of the book deals with vortices and vortical flows, following their natural evolution stages. unsteady flow can be effectively controlled by periodic blowing buffet control. The. The physics of the multiscale patterns of flows is introduced in the first part: it is the foundation for analysis of the control of flow.

Then a careful distinction is made between control as a Cited by: 4. Refereed Journal Articles, Book Chapters, and Books. Sun and R.M. Cummings, "Evaluation of Missile Aerodynamic Characteristics Using Rapid Prediction Techniques. This banner text can have markup. web; books; video; audio; software; images; Toggle navigation.

data will be invoked and compared with during discussion of the present results. Experimental Procedure The experiment is carried out in an open-loop, low-speed wind tunnel. The test section is 50 cm high x 76 cm wide and the contraction ratio inlet has 5 flow conditioning screens.

The flow is driven by an axial fan. EXPERIMENTAL PROFILES OF VELOCITY COMPONENTS AND RADIAL PRESSURE DISTRIBUTIONS IN A VORTEX CONTAINED IN A SHORT CYLINDRICAL CHAMBER* by Joseph M. Savino and Edward G.

Keshock** Lewis Research Center SUMMARY An air vortex was generated in a flat cylindrical chamber formed by two inch diameter disks that were spaced inches apart File Size: 1MB. The computational results showed good agreement with the experimental results, particularly for the formation of droplet-shaped bubbles and their transformation into a donut-shaped rings.

A similar method for simulating a real sump with an outlet pipe in which a limited slippage exists between the gas and liquid phases was proposed by Robinson Cited by: 1.

Manipulation of vortex instabilities for aerodynamic performance increase is of great interest in numerous aeronautical applications.

With increasing angle of attack, the leading-edge vortex of a semi-slender delta wing becomes unsteady and eventually collapses, endangering the flight stability. Hence, active flow control by pulsed blowing stabilizes the vortex system, enlarging the flight Author: Andrei Buzica, Christian Breitsamter.

Our results are compared with experimental data. The numerical and experimental profiles show a good agreement. We observe that blowing dramatically decreases the mean temperature, permitting to protect the wall from the main hot flow. Blowing is shown to increase the velocity and temperature fluctuations.

These results show that the critical Reynolds number at the peak exists not only in plunging jet flow but also in plunging curtain flow.

This suggests that, if we measure the critical Reynolds number at the peak for a given set of experimental conditions of curtain flow, we can predict the onset velocity of air entrainment at the peak for Cited by: Active flow control is a technique to improve the fluid dynamics of an aerodynamic body utilizing an active actuator and energy input.

Much progress on the application of active flow control techniques for wind turbine blades has been accomplished in the last decade.

The main focus has been on regulating unsteady aerodynamic blade loads and vibration by controlling the flow locally along the Cited by: 1. American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA   Experimental control of swept-wing transition through base-flow modification by plasma actuators - Volume - Srikar Yadala, Marc T.

Hehner, Jacopo Serpieri, Nicolas Benard, Philipp C. Dörr, Markus J. Kloker, Marios KotsonisCited by: Unfortunately, this book can't be printed from the OpenBook.

If you need to print pages from this book, we recommend downloading it as a PDF. Visit to get more information about this book, to buy it in print, or to download it as a free PDF. For a vortex ring at Re=, it was found that two types of azimuthal flow (axial flow) exist inside the vortex tube.

The axial flow appears when the amplitude of a wavy deformation of the vortex ring becomes appreciable. The axial flow starts to grow before the wave-breaking and its speed increases gradually. In order to investigate the relation between the deformation of the vortex core and Cited by:.

Special Session: NATO Task Group AVT I - Experimental Investigations • Monday, 16 June • hrs.nonwoven materials. The experimental data in the results show how the fiber drag varies with stagnation pressure, air injection angle, fiber length, test section orientation, die setback, and exit velocity.

A Fanno flow analysis was used to model the flow in the injection nozzles to determine the exit : Bryan David Haynes.The velocity of shear flow A ranges from 0 m/s to m/s and the velocity of shear flow B ranges from m/s to m/s.

The fitting expression of shear flow A is, and shear flow B is v(y) = + the two types of the shear flows' shear parameter are and the v m are m/s and m/s respectively.

The corresponding Reynolds numbers are and Cited by: 5.