Q=C⋅L⋅He3/2cap Q equals cap C center dot cap L center dot cap H sub e raised to the 3 / 2 power : Discharge coefficient. : Effective length of the crest. Hecap H sub e : Total energy head. Troubleshooting Common Installation Issues
Secure a reputable XLS template (often available through university engineering departments or professional hydraulic software portals).
Most advanced design sheets use VBA (Visual Basic for Applications) to iterate complex calculations or generate coordinate tables. ogee spillway designxls install
Select "Enable all macros" (ensure the source is trusted first).
The spreadsheet will apply the standard equation for the downstream shape: Q=C⋅L⋅He3/2cap Q equals cap C center dot cap
xn=K⋅Hdn−1⋅yx to the n-th power equals cap K center dot cap H sub d raised to the n minus 1 power center dot y are coordinates, and
Windows often blocks macros in files downloaded from the internet. Right-click the file in your folder, select Properties , and check the Unblock box at the bottom. Summary of Benefits Manual Calculation Ogee Design XLS Speed Hours/Days Accuracy Prone to human error Formula-locked precision Visualization Requires manual plotting Automatic chart generation Iteration Instant "What-If" analysis The spreadsheet will apply the standard equation for
Ensuring the profile prevents sub-atmospheric pressure (cavitation).
Ensure you haven't renamed or moved supporting data sheets within the workbook.