Hydraulic Analysis - Open Channel Pipe Flow
This tool was developed using the Camp or Manning Equation to help users to size partially full pipe based on the slope available. The Camp method is recommended as a flow depth dependent variation in Manning roughness coefficient has been used to improve the accuracy.
Nearly full circular pipes will carry more liquid than a completely full pipe. Maximum flow is achieved at about 93% of full pipe flow, and maximum velocity at about 78% of full pipe flow.