计算流体力学（英语：Computational Fluid Dynamics，简称CFD）是21世纪流体力学领域的重要技术之一，使用数值方法在计算机中对流体力学的控制方程进行求解，从而可预测流场的流动。目前有多种商业CFD软件问世，比如FLUENT、CFD-ACE+（CFDRC）、Phoenics、CFX、Star-cd等。

目前在工程领域CFD方法已经得到广泛的应用。美国海空军下一代F-35战斗机所使用的附面层分离进气道是CFD的成果之一。附面层分离进气道通过特殊设计形状的突起分离流速较慢的附面层以改善涡轮风扇发动机的进气流场。此设计比传统的附面层隔板方法可以减轻数百公斤重量，同时在一定速度范围内能够维持很好的分离效率。

Computational fluid dynamics, usually abbreviated as CFD, is a branch of fluid mechanics that uses numerical analysis and algorithms to solve and analyze problems that involve fluid flows. Computers are used to perform the calculations required to simulate the interaction of liquids and gases with surfaces defined by boundary conditions. With high-speed supercomputers, better solutions can be achieved. Ongoing research yields software that improves the accuracy and speed of complex simulation scenarios such as transonic or turbulent flows. Initial experimental validation of such software is performed using a wind tunnel with the final validation coming in full-scale testing, e.g. flight tests.