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There are several mathcad code files that are integral in the development of the Linear Flow Orifice Meter. The pages below include attachments to the actual mathcad files as well as documentation on the code.
Mathcad Codes
The Sutro Weir Design Documentation
Flow Rate Through Weir Documentation provides information on the design of a sutro weir.
The Entrance Tank Mathcad Code Documentation is a page devoted to the improvement of the LFOM design and include information on the optimal orifice diamter, total riser pipe height (including factors of safety etc.), and influences on the optimal number of riser pipes.