I'm working on deciding where to place two gyres in my tank. The gyres will be placed vertically. I'm presently considering placing them on opposite sides of my overflow box. The idea is to have the gyres run on alternate intensities to get a moving spot of random flow in the tank that travels back and forth across the tank. The issue however is I don't know how the gyre flow is going to behave. Specifically, I don't know whether the current is going to travel laminarly along the side wall and across the front (like on the left) or, if upon hitting the side wall, it is going to become random and not travel lamilarly across the side and front (like on the right). Anyone with some fluid dynamics knowledge have an answer for me?