[CFDstudent2010]

Hello, the aim of my project is to find the optimum location of an impeller within a pump that produces the maximum mass flow rate for zero pressure across the pump. I ran my calculation in fluent and obtained DP0 as shown in the image 'parameters', which i am happy with. The problem is that when running direct optimisation, i am getting a warning as shown at the bottom in the image 'directopt warning'. The same message pops up shortly after for Zmovement.

For context, Xmovement and Zmovement are the movement in the x and z direction for the pump housing (so that impeller stays in its same position) and radial distance and angular distance are related to said movements as they are the polar co-ordinates.

Please help