Aerofoils are two-dimensional cross-sections of wings that generate lift to balance aircraft. Hydrofoils are underwater wings that allow boats to "fly" on water. Computational fluid dynamics (CFD) uses computer simulations to analyze fluid flow, heat transfer, and other phenomena by solving equations governing fluid motion. CFD was used to study the effects of angle of attack, Reynolds number, and proximity to walls on conventional and non-conventional hydrofoil sections. Results showed thicker hydrofoils perform better at large angles of attack while thinner foils are better for applications requiring small angles of attack like hydrofoil crafts.