Reddit mentions of Computational Methods for Fluid Dynamics

If you're starting out, I'd start with NASA's Indices for propulsion and aerodynamics to get familiarized with everything.

NASA Propulsion Index

NASA Aerodynamics Index

Once you get into it and have the physics and math foundation you can get into the weeds:

Fundamentals of Aerodynamics

This is more of a reference than a learning tool:
NACA airfoil generator

And then if you get into CFD/simulation An Introduction to Computational Fluid Dynamics and Computational Methods for Fluid Dynamics are pretty good.

While Anderson's book is pretty good, I wouldn't recommend it in this case. He writes primarily from an aerodynamics view, with the assumption that the Mach number will be important, and deals mainly with density based solvers. None of that is going to be relevant to most hydrodynamics situations. I would instead recommend something that focuses more on pressure based solvers and low Mach number flows, like Ferziger & Peric, or Versteeg & Malalakesera if you want something that is a bit more of a hand book. I find Ferziger & Peric especially helpful for dealing with OpenFOAM because so much of the terminology is similar.

I second the whole CFD-Online lurking. I use OpenFOAM every day (actually right this moment) and its taken me a few years to get to where I am right now. Just some tips on learning

• Be patient, its difficult
  
• Read the users guide and programmer's guide but realize there are mistakes in it....but its a good place to start.
  
• CFD-Online and Google are your friends. There are many resources out there including free courses, wiki articles, training material from old workshops, and blogs.
  
• Read this book by Ferziger and Peric' as this is where some of the methods implemented in OF come from.
  
• Read this thesis by one of the original programmers. This is the most important resource you have.
  
  Granted, all of this can be done while playing with OpenFOAM and the tutorials, but...if you want to master it...then look through what I have provided. Also, if you want to get using it quickly, try using a preprocessor like swiftSnap or HELYX-OS.

Numerical Simulation in Fluid Dynamics: A Practical Introduction
The nice thing about this book is that it guides you through the creation of a basic CFD code with lots of pseudo code and recommended method interfaces and data structures. The discretization is done in finite differences. Advanced topics like turbulence, energy transport and free boundary problems are also discussed.

Computational Methods for Fluid Dynamics
In contrast to the first one, this book does not provide you any recommendations regarding the implementation but covers more topics like finite volume discretization, numerical solvers, multigrid, DNS, LES etc.

I would say, if you want a practical approach, pick the first one, if you are more interested in the theory of different methods and concepts, pick the second one.