I have a project in which I am designing a lightweight, portable hydropower system, and I'm unsure of how exactly I am to choose the correct style of turbine. For context, the turbine is only really going to be used in a 'Run-of River' style, in areas with a flow rate between 1.0 m/s and 4.0 m/s. It's something I haven't really worked on before, so any advice would be much appreciated.