Abstract:
An experimental investigation of a conical flow formed by the interaction of two asymmetric turbulent curved wall jets past a circular cone is
presented. Measurements were made of velocity and turbulence intensity profiles of the two jets in the wall jet, the interaction, and the
merged jet regions. 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 the slot exit velocities of the two jets. The mean velocity and streamwise turbulence intensity
profiles of the merged jet were similar to those in a turbulent free jet. Regardless of jet-exit velocity ratios, self-similar mean velocity profiles
for different values of downstream location prevails up to the beginning of interaction region. The streamwise and lateral turbulence
intensities increase with increasing the streamwise distance up to the interaction region, where the turbulence behavior becomes random
and is characterized by larger peak values of the turbulence intensity compared to wall jet region. The maximum velocity decay and jet halfwidth
growth increased parabolically with streamwise distance. No significant effect of conical shape was observed. Surface flow
visualization was carried out for several exit jet velocity ratios. Three dimensionality was seen to be reduced as the secondary jet
momentum increases.