Most advanced design sheets use VBA (Visual Basic for Applications) to iterate complex calculations or generate coordinate tables.
Select "Enable all macros" (ensure the source is trusted first). ogee spillway designxls install
Ensure you haven't renamed or moved supporting data sheets within the workbook. Most advanced design sheets use VBA (Visual Basic
Before entering data, ensure the "Settings" or "Inputs" tab is set to your required unit system (SI/Metric or US Customary). Step-by-Step Design Procedure Using the XLS tool typically follows this logical flow: 1. Define Design Inputs You must provide the fundamental hydraulic parameters: Design Head ( Hdcap H sub d ): The maximum head for which the profile is shaped. Design Discharge ( ): The target flow rate. Crest Elevation: The vertical height of the spillway crest. Approach Depth ( ): The height from the upstream floor to the crest. 2. Calculate the Crest Profile Before entering data, ensure the "Settings" or "Inputs"
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
Secure a reputable XLS template (often available through university engineering departments or professional hydraulic software portals).
Open Excel and go to File > Options > Trust Center > Trust Center Settings > Macro Settings .