Hydraulic libraries contain blocks for the hydraulic domain, organized into elements, sources, sensors, and utilities. For a complete list of domains available for modeling fluid systems, see Fluid System Modeling.

Starting in R2020a, it is recommended that you use the Isothermal Liquid blocks for modeling hydraulic systems where the working fluid temperature remains constant during simulation. For information on the upgrade process for legacy hydraulic models, see Upgrading Hydraulic Models to Use Isothermal Liquid Blocks.