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The interaction of two opposing, asymmetric curved wall jets

โœ Scribed by H. S. Rew; S. O. Park

Publisher
Springer
Year
1988
Tongue
English
Weight
882 KB
Volume
6
Category
Article
ISSN
0723-4864

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โœฆ Synopsis

An experimental investigation was made of a two dimensional flow formed by the interaction of two asymmetric turbulent curved wall jets past a circular cylinder. Measurements were made of velocity and turbulence intensity profiles of the two curved wall jets before the interaction, and those of the merged jet after the interaction. The location of the interaction region of the two opposing curved wall jets and the flow direction of the merged jet were found to depend primarily on the ratio of initial momentum fluxes. The velocity and turbulence intensity profiles of the merged jet were similar to those of the plane turbulent jet. However, the growth rate of the merged jet was approximately 1.5 times larger than that of the plane jet. The influence of the momentum flux ratio on the growth rate appeared to be insignificant.

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positions where the wall pressure has maximum and minimum values respectively penetration length of jet distance from the wall forward flow fraction yaw and pitch angles of flow direction (Fig. 4) velocity ratio, 2 = Ufl Uo density of the fluid nondimensional stream function 1