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DNVGL RP F115 Pipeline Local Pressure

Calculate DNVGL RP-F115 pipeline local stationary internal and external pressure from elevation.

The external pressure is calculated from the water depth. The internal fluid density is assumed constant. Elevation is measured relative to any arbitrary datum (+ve above the datum -ve below the datum). Use the Result Plot option to plot pressure versus elevation.

Reference : DNVGL-RP-F115 Pre-commissioning of Submarine Pipelines (Download from the DNVGL website)

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CALCULATOR : DNVGL-RP-F115 Pipeline Internal And External Pressure From Elevation [FREE]   ±

Calculate DNVGL-RP-F115 pipeline internal and external stationary pressure from elevation using Bernoulli's equation.

The local internal pressure is calculated from the reference pressure and relative elevation. The external pressure is calculated from the water depth. The internal fluid density is assumed constant.

Tool Input

  • pletype : External Pressure Type
    • Pleu : User Defined Local External Pressure
  • plitype : Internal Pressure Type
    • Priu : User Defined Reference Internal Pressure
    • Pliu : User Defined Local Internal Pressure
  • ρf : Internal Fluid Density
  • ρe : External Fluid Density
  • Zr : Reference Elevation Relative To Datum
  • Zl : Local Elevation Relative To Datum
  • Zs : Surface Elevation Relative To Datum

Tool Output

  • ΔPl : Pressure Difference Across Pipe Wall
  • Δz : Local Elevation Relative To Reference Elevation
  • Ple : External Pressure
  • Pli : Internal Pressure At Local Elevation
  • Pri : Internal Pressure At Reference Elevation
  • wd : Water Depth