VELOCITY AND INERT SCALAR MEASUREMENTS IN ROCKET PLUMES

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Authors
  1. Sislian, J.P.
Corporate Authors
Toronto Univ, Toronto ONT (CAN) Inst for Aerospace Studies;Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
An experimental investigation of the flowfields of a premixed hydrogen/air flame and isothermal air jet exhausting vertically into a coaxial air stream in the presence (bluff-body) and absence (nonbluff-body) of a base has been investigated in order to compare the turbulence structures of the two cases, and to obtain data for evaluation and refinement of mathematical models of turbulence. In both configurations, the central and annulus air velocities were 306 m/s and 100 m/s, respectively. The corresponding Reynolds numbers were 1.3 x 5E for the central jet falme and 1.5 x 5E for central isothermal jet; the annular air jet Reynolds number was 9 x E4. Schlieren photography was employed to visualize the flowfields, followed by systematic measurements of the mean and fluctuating flow quantities using a four-beam, two-component, two-colour laser Doppler velocimeter. The axial turbulence macroscale was determined from the measured longitudinal spatial correlation coefficient.
Date of publication
01 Jan 1992
Number of Pages
441
DSTKIM No
96-01952
CANDIS No
203316
Format(s):
Document Image stored on Optical Disk;Hardcopy

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