Studies on Opposed Turbulent Jets : Impact Position and Turbulent Component in Jet Center

In our previous reports, it was clarified that fluctuations in the jet center have an important effect on opposed turbulent jet flow fields. In the jet center, where symmetrical flow fields are characterized, the turbulent structure will be different from those in other parts of the jet. In the turbulent opposed jet center, the fluctuating velocity plays a role equal in importance to that of mean velocity, static pressure and fluctuating velocity. The present paper deals with the influences of the variations of the fluctuating velocity, employing the grid in the center of turbulent opposed jets, to the impact position.