Reference Conditions

1
Reference Conditions

• We frequently refer local flow conditions back to
  special (reference) condtions.
• We saw for stagnation conditions
• T0 constant for adiabatic, p0 for adiabatic and
  veversible (isentropic) flows

2
Critical States

• Critical states (M1)

3
Reference Speeds

• Maximum velocity in an adiabatic flow
• Stagnation speed of sound
• Critical speed of sound