👉 The term "barostat" is typically used in the context of fluid dynamics and aerodynamics, particularly in the field of fluid mechanics. In this context, a barostat refers to an apparatus that is designed to maintain a fluid flow at a constant pressure. A barostat can be thought of as a device that measures the velocity (v) and density (ρ) of a fluid. The velocity is measured by means of a velocity sensor or a measuring chamber, while the density is
