I'm a sophomore of Mechanical Engineering, but I do like delving into more advanced subjects that I haven't seen in undergrad yet, and among those are fluid dynamics. I've made a little bit of research into turbomachinery (while looking for some classes that could interest me hereafter) and found it really interesting. I like Control Systems, also, things like PID and PLC, and I wonder if there is (or could be) any connection between those two subjects. Would Control Systems of Turbomachinery be a field of work? I mean, something integrating both areas and requiring knowledge of both?