<p>I’m not sure you understand you exactly what “computational physics” is. It’s not unlike those high school graduates who claim they just want to study “theoretical physics”. </p>
<p>Computational physics is not a field in an of it self, but a sub-discipline of the different specialties within physics. For example, someone could be working on something esoteric like modelling the behavior of quarks at high energies, while someone else could be working on something practical such as modelling hydrodynamic turbulence. Both are “computational physicists”, but as you can see are in completely different fields. </p>
<p>As for engineering physics, my impression for most programs is that there is an emphasis of using the principles of quantum mechanics to solve practical problems. This would be great if you want to do some energy generation from a nuclear or even fusion approach, but things like Tesla Motors are not really at the cutting-edge of energy generation research. For things like that and for most energy generation topics, mechanical engineering is the obvious choice. </p>