Turbulence Measurements In A Subsonic Aerodynamic Window Jet

Wataru Masuda; Shigeo Andoh

doi:10.1117/12.950565

20 June 1989 Turbulence Measurements In A Subsonic Aerodynamic Window Jet

Wataru Masuda, Shigeo Andoh

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950565
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

The structure in an initial mixing region of a two-dimensional curved jet along a circular arc is investigated by measurering the mean velocity, the turbulent intensities, the turbulent shear stress, the terms in the turbulent energy equation and terms in the Reynolds stress transport equation. It is found that the profiles of the rms intensity for the axial fluctuating velocity component and the Reynolds stress exhibit an obvious asymmetry due to the influence of the centrifugal force. By using the measured distribution of the mean velocities and the Reynolds stresses, the curvature factor and the eddy viscosity, which is included in the expression given by Sawyer, are estimated along the jet centerline and it is shown that the Sawyer's expression is somewhat inadequate in the initial mixing region of a two-dimensional curved jet. The profiles of the terms in the turbulent energy equation and the Reynolds stress transport equation also exhibit an obvious asymmetry. However, the generation term and the pressure-strain redistribution term in the Reynolds transport equation exhibit an obvious asymmetry only within the region of about a few slot thicknesses downstream of the nozzle exit and the asymmetry of these terms

Citation Download Citation

Wataru Masuda and Shigeo Andoh "Turbulence Measurements In A Subsonic Aerodynamic Window Jet", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950565

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Chemical lasers

Velocity measurements

Turbulence

Diffusion

Aerodynamics

Calibration

Dysprosium

Show All Keywords

Keywords/Phrases

Search In:

Publication Years