Last edited by Mikagami
Thursday, August 6, 2020 | History

3 edition of Drag reduction on circular cylinders by ejecting jet from rear stagnation region found in the catalog.

Drag reduction on circular cylinders by ejecting jet from rear stagnation region

Drag reduction on circular cylinders by ejecting jet from rear stagnation region

progress report for the period ending June 30, 1997 ... under Cooperative Agreement NCC1-232

  • 276 Want to read
  • 4 Currently reading

Published by Dept. of Mechanical Engineering, College of Engineering and Technology, Old Dominion University, National Aeronautics and Space Administration, National Technical Information Service, distributor in Norfolk, Va, [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Drag reduction.,
  • Circular cylinders.,
  • Stagnation point.,
  • Ejection.,
  • Computational fluid dynamics.,
  • Finite volume method.,
  • Navier-Stokes equation.,
  • Reynolds number.,
  • Injection.,
  • Pressure measurement.,
  • Algorithms.

  • Edition Notes

    Statementby S. Atsuchi and S.N. Tiwari.
    SeriesNASA contractor report -- NASA CR-206329.
    ContributionsTiwari, S. N., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15491664M

    Drag Reduction Near-Wall Region on. Ron F. Blackwelder 4. Frontiers of Flow Control. Examples of such control include changing of the geometry of a jet exit from circular to elliptic (Gutmark and Ho, wall motion for body shapes other than cylinders . Figure 3: Potential drift force on fixed circular cylinders, h/a = Comparison with the numerical data of Garrison [11]. Figure 4: Potential drift moment on fixed circular cylinders, h/a = Comparison with the numerical data of Garrison [11]. and 2it Fx2 tanh kh e = G(k2)dk2 + c.c. gD3 8(ka) 0.

    title: pressure distributions along the surface of ogive and cone cylinders at zero angle of attack for higher supersonic mach numbers summary of literature survey, id: ad Title: STATIC STABILITY AND DRAG MEASUREMENTS ON A SCALE MODEL OF THE ANGLED ARROW PROJECTILE AT A MACH NUMBER OF USING VARIOUS NOSE AND FIN . Contribute to emjotde/forcealign development by creating an account on GitHub. Dismiss Join GitHub today. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.

    AEROGRAPHER'S MATE 3 & 2 The first aerological personnel held the rating of Quartermaster with meteorological duties (QMA). This was changed in to Aerographer (Aerog). With the establishment of the warrant rank in , the rating became Aerographer's Mate (AerM). Bill Gunston - The Cambridge Aerospace Dictionary (Cambridge Aerospace Series) () код для вставки.


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Drag reduction on circular cylinders by ejecting jet from rear stagnation region Download PDF EPUB FB2

Get this from a library. Drag reduction on circular cylinders by ejecting jet from rear stagnation region: progress report for the period ending J under Cooperative Agreement NCC [S Atsuchi; S N Tiwari; United States.

National Aeronautics and. An experimental study on a passive, self-suction, and self-jet control method was conducted to manipulate the flow around a circular cylinder at the Reynolds number R≈× Blowing or jet is a typical active control means for vortex manipulation and drag reduction.

15, 16 Williams et al. 17 experimentally observed that ejecting fluid from small holes on the cylinder. Full text of "Flow control [electronic resource]: fundamentals and practices" See other formats. You can write a book review and share your experiences.

Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them., Free ebooks since The writer of this book is not an authority to be believed upon face-value alone.

New assertions made in this book about German saucers will be accompanied with documentation. Assertions made by others will be accompanied with their references. This book will briefly touch upon most of the facts, ideas, writers and researchers in this field.

Full text of "DTIC ADA Proceedings of the International Symposium on Seawater Drag Reduction, July Newport, Rhode Island" See other formats. The book is intended for an undergraduate course in fluid mechanics, and there is plenty of material for a full year of instruction.

Chapter 7 has added some new data on drag and resistance of various bodies, notably biological systems which adapt to the flow of wind and water. Try to achieve an exit jet condition which kg/m3. This is an archive of past discussions.

Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page.

Fluid Mechanics Frank White 5th Ed - ID:5ca11de. Fluid Mechanics McGraw-Hill Series in Mechanical Engineering CONSULTING EDITORS Jack P. Holman, Southern Methodist Univ. pressure will increase until, in the stagnated region (or stagnation point), a maximum value is achieved, shown by the sum in Equation ().

Long ago it was realized that this relationship provides a means of measuring flow speed, either in the laboratory or on an airplane, boat, etc. This eventually led to the invention of the pitot static tube. Let's make a mental the scale is such that one astronomical unit is equal to one millimeter (1/25th inch).There is a glowing dot for the Sun, and one millimeter away is a microscopic speck representing the Earth.

The edge of the solar system is about at Pluto's orbit, which varies from 30 mm to 50 mm from the Sun (about 1 and 3/16 inch to almost 2 inches). In a real fluid with viscosity, the streamlines off the back do not perfectly mirror those on the front.

Instead of traveling all the way around the back of the cylinder to the rear stagnation point, the fluid leaves the cylinder partway around at two different locations, the upper and lower separation by: 3. The drag of fruit flies is estimated to be times the lift force required to sustain the fly’s weight.

The body mass specific power is W/kg, the muscle-mass specific power is W/kg, and the muscle efficiency is 17%. This drag-to-lift ratio is higher compared with those in large fast birds or in hovering by: Circular streamlines, however, do not imply that a flow should have vorticity everywhere.

Consider the flow around circular paths in which the velocity vector is tangential and is inversely proportional to the radius of the streamline. That is, C r ue = - u, =o. () Using Q.

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