Calculate transient wave velocity and maximum delta time.
The maximum shut off time is the time taken for the pressure transient to travel to the pipe inlet, and back again. The pressure transient is reduced if the shut off time is greater than the maximum shut off time. The wave velocity can be calculated for liquid and gas combined, or for liquid only.
Tool Input
- schdtype : Line Pipe Schedule Type
- diamtype : Diameter Type
- ODu : User Defined Outside Diameter
- IDu : User Defined Inside Diameter
- wtntype : Pipe Wall Thickness Type
- tnu : User Defined Wall Thickness
- endtype : End Constraint Type
- fluptype : Fluid Type
- L : Pipeline Length
- ρ : Liquid Density
- E : Pipe Elastic Modulus
- K : Liquid Bulk Modulus
- ν : Pipe Poisson's Ratio
- P : Operating Pressure
- T : Operating Temperature
- Z : Gas Compressibility Factor
- GOR : Gas Moles to Liquid Volume Ratio
Tool Output
- C : End Constraint Factor
- ID : Pipe Inside Diameter
- Tmax : Maximum Shut Off Time
- Va : Pressure Wave Velocity
- tn : Pipe Wall Thickness