Fluid Mechanics and Turbo Machines by Madan Mohan Das is a that does its job well for the average undergraduate. It is not a masterpiece of pedagogical innovation, but it is a dependable workhorse. If you want a single volume to cover both subjects without breaking the bank, this is a solid choice. Just supplement it with a more visual reference (like Cengel) for deeper conceptual clarity.
Good for passing exams and understanding basics; not sufficient for advanced research or design.