Wave Speed in Pipeline

Where:

𝑎 − Wave Speed

𝐾_𝑠 − Adiabatic Bulk Modulus of fluid

𝜌 − Density of fluid

𝐸 − Modulus of Elasticity for Steel Pipe (psi)

𝐷 − Pipe Diameter (in)

𝑡 − Pipe Wall Thickness (in)

𝜇 − Poisson’s Ratio (0.30 for Steel)

𝑚 − coefficient for type of pipe support

• Pipe anchorage only at the upstream end = 
• Pull pipe restraint from axial movement = (1 − 𝜇²)
• Longitudinal expansion joints along the pipeline = (1.0)

𝐾_𝑠 − Adiabatic Bulk Modulus

𝑃 − Pressure (psig)

𝑇 − Temperature (°𝑅) = (℉ + 460)

𝐴𝑃𝐼 − API gravity of liquid @ 60℉

𝐴 = 1.286×10⁶

𝐵 = 13.55

𝐶 = 4.122×10⁴

𝐷 = 4.53×10³

𝐸 = 10.59

𝐹 = 3.228

Input Parameter

1. To create a new case, click the “Add Case” button
2. Select the Wave Speed in Pipeline application from the Miscellaneous module list.
3. Enter Case Name, Location, Date and any necessary notes.
4. Fill out all required fields.
5. Make sure the values you are inputting are in the correct units.
6. Click the CALCULATE button.

• Nominal Pipe Size (in)
• Nominal Wall Thickness (in)
• Product Type
• Pipe Type
• Liquid Specific Gravity
• Liquid Temperature (°F)
• Pressure (psi)

Outputs/Reports

1. View the results.
2. If an input parameter needs to be edited be sure to hit the CALCULATE button after the change.
3. To SAVE, fill out all required case details then click the SAVE button.
4. To rename an existing file, click the SAVE As button. Provide all case info then click SAVE.
5. To generate a REPORT, click the REPORT button.
6. The user may export the Case/Report by clicking the Export to Excel/PowerPoint icon.
7. To delete a case, click the DELETE icon near the top of the widget.

• Adiabatic Bulk Modulus (psi)
• Wave Speed in Pipeline (ft/sec)

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