File:Mesure des pressions sur une paroi circulaire de rayon r = 12 cm déviant ou non un jet de nombre de Reynolds1.000.000.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(840 × 649 pixels, file size: 820 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
Français : Mesure des pressions sur une paroi circulaire de rayon r = 12 cm déviant ou non un jet de nombre de Reynolds 106 . La pression commence par chuter sur un angle de 9° (installation d'un gradient transversal), puis reste constante si le rapport h/r de la largeur du jet dévié au rayon est inférieur à 0,25 (effet Coanda) le long d'un angle additionnel qui est un effet Coanda véritable, enfin elle remonte jusqu'à la pression ambiante, à nouveau sur un angle de 9° au point où le jet décolle de la paroi.Si h/r est supérieur à 0,5,la zone intermédiaire n'apparaît pas et il n'y a pas d'effet Coanda véritable.
English: Measuring pressure along a circular wall of radius r = 12 cm deflecting a jet, Reynolds number 106 . The pressure begins to fall along an angle 9° (installing a transverse gradient), and the remains constant if the h/r ratio of the width of the deflected jet to the radius is less than 0.25 along an additional angle which is a true Coanda effect, and finally increases back to the ambient pressure again over another angle 9°. If h/r is more than 0.5, no true Coanda effect occurs.
Date
Source Own work: Expériences effectuées par l'auteur et J. Liermann dans le laboratoire de l'auteur à la SNECMA, publiées dans: Kadosch M.,"Mécanisme de la déviation des jets propulsifs" in "Publications Scientifiques et Techniques du Ministère de l'Air", Paris, BSTMA n°124 p146, 1959, et dans: Kadosch M., Déviation d'un jet par adhérence à une paroi convexe in Journal de Physique et le Radium, avril 1958, Paris, p.9A
Author M. Kadosch

Licensing

[edit]
I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current14:26, 11 October 2015Thumbnail for version as of 14:26, 11 October 2015840 × 649 (820 KB)Marcel kadosch (talk | contribs)User created page with UploadWizard

You cannot overwrite this file.

There are no pages that use this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Mesure_des_pressions_sur_une_paroi_circulaire_de_rayon_r_%3D_12_cm_déviant_ou_non_un_jet_de_nombre_de_Reynolds1.000.000.jpg&oldid=504158039"