Calculate water hammer transient head and transient pressure.
The pressure transient is reduced if the effective shut off time is greater than the maximum shut off time. For long pipe sections the effective shut off time is less than the actual shut off time because of fluid friction losses. The maximum shut off time is the time taken for the pressure transient to travel to the pipe inlet, and back again.
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
- flowtype : Liquid Flow Type
- QΔu : User Defined Delta Liquid Volume Flow Rate
- MΔu : User Defined Delta Liquid Mass Flow Rate
- VΔu : User Defined Delta Liquid Velocity
- 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
- HΔ : Pressure Transient Delta Head
- ID : Pipe Inside Diameter
- MΔ : Delta Liquid Mass Flow Rate
- PΔ : Pressure Transient Delta Pressure
- QΔ : Delta Liquid Volume Flowrate
- Tmax : Maximum Shut Off Time
- VΔ : Delta Liquid Velocity
- Va : Pressure Wave Velocity
- tn : Pipe Wall Thickness