I am trying to find the effect on turbulence characteristics when flow passes through a converging section. For this experiment I will use a PIV system to gather data about the flow. However, I could not find any specific literature on flow through symmetric converging channel. (The converging channel I would be using is type of a converging hopper with a circular hole exit.) I have attached a 2d drawing of this Please advise if you know any similar papers relating to this.
Turbulence: Suggest research papers similar to this experiment
fluid dynamics