Water • Surge Microsoft Excel (.xlsx)
Water Hammer (Joukowsky Surge)
Estimate surge pressure from sudden valve closure in a pipeline.
Download Excel Workbook (.xlsx)
Version 0.1
What this workbook is
A real, downloadable Microsoft Excel workbook — not a rendered demo. Every sheet is built around a single engineering method: inputs in one place, calculated results and a PASS / WARN / FAIL check sheet, with the method, sources and assumptions recorded next to the numbers. Open it in Excel, Sheets or LibreOffice, change the inputs, and the workbook recalculates.
- Light cells are user-entered inputs on the Inputs sheet.
- Dark cells are calculated automatically and are not editable.
- The method and sources for every calculation are listed below and inside the workbook.
What you enter
- ✓Flow velocity
- ✓Pipe diameter & wall thickness
- ✓Pipe modulus
- ✓Fluid bulk modulus
What it calculates
- ✓Wave speed (m/s)
- ✓Surge pressure (bar)
- ✓Combined pressure
Method
Δp = ρ·c·Δv; c = 1/√(دپ(1/K + D/(e·E)))
Sources
- [1] Joukowsky 1898; hydraulic transients texts (Chaudhry, Wylie & Streeter)
Inside the workbook
CoverTitle, scope and revision block
SummaryCore inputs and headline results
InputsYour project values (light cells)
CalculationsStep-by-step working sheet (dark cells)
OutputsReadback of results for reporting
ChecksPASS / WARN / FAIL against stated limits
ReferenceSources for each calculation
Notes & AssumptionsScope, exclusions and stated limits