What area does 'computational fluid dynamics' (CFD) focus on?

Computational Fluid Dynamics (CFD) specifically focuses on the numerical analysis and simulation of fluid flow, which encompasses both gases and liquids. CFD utilizes mathematical models and algorithms to solve and analyze fluid dynamics equations, primarily the Navier-Stokes equations that describe the motion of fluid substances. This area applies computational power to evaluate how fluids behave under various conditions, including velocity, pressure, temperature, and composition, across different surfaces and boundaries.

CFD is extensively used in various fields such as aerospace, automotive, and civil engineering, allowing engineers to analyze complex flow patterns, predict outcomes of fluid motion, and optimize designs before physical prototypes are made. The computational techniques in CFD enable high-fidelity simulations that can capture turbulent flows, laminar flows, and interactions between fluids and solids, which are critical for understanding real-world fluid behavior.