The local speed of sound downstream in region 2 for one-dimensional compressible flow, often denoted as , refers to the speed at which small disturbances or pressure waves propagate through the fluid in a specific region of the flow downstream from a certain point. This parameter is crucial in the analysis of compressible fluid dynamics and is associated with the local thermodynamic properties of the fluid in that particular region.
- Specific heat ratio (γ)
- Critical speed of sound (a*) in m/s
- Velocity downstream at region 2 (u2) in m/s
- Local speed of sound downstream at region 2 (a2) in m/s