Notice of RetractionA numerical study of the effect of geometrical factors on jet mixing

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

The turbulent flow characteristic in jet mixer was predicted based on CFD method adopted RNG k - ε turbulent model. Some detailed information about the velocity and turbulence kinetic energy was obtained. The results show that normalized centerline velocities at different jet velocities have the similar distribution. With the distance increasing, it gradually decreases and the curve is to be smoother. The axial velocity is almost positive, while the radial velocity is negative. As the radial distance rising, the curves of radial velocity tend to vary alike, which increase at first, to the certain extent, then decay progressively and trend to be smooth at last. The peak value of the axial velocity is to be lower far from the mixer bottom. The tangential velocity fluctuate strongly, the value was smaller about an order of magnitude than other components of velocities. The turbulence in the centerline zone tends to be larger and the magnitude of turbulent kinetic may be five times difference at the different radial position. The results can be theoretical basis for the optimum design and scale-up of the jet mixer.