There is a need for a faster and easier way to find pipe diameter in gravity flow drainage pipe sizing when pipe % filled and flow design criteria are given. In BS EN 12056-2, sanitary drainage pipe shall be designed with a filling degree of 50% for System I, 70% for System II and 100% for System III.
The traditional way of finding pipe diameter is to use various charts. This process is too tedious and time consuming. Thus this gravity flow drainage pipe sizing software is specially designed in a simple yet effective way to find pipe diameter.
Built-in features:
calculation in imperial or metric system via the selection of flow units (l/s, m3/s, gpm and ft3/s).
find pipe diameter option for a given pipe % filled and flow criteria.
find pipe % filled option for a given pipe diameter and flow criteria.
pipe flow full and partial capacities for a given/selected pipe diameter.
The popular Manning formula (see Wikipedia) for gravity flow hydraulic design is used to do the tedious hydraulic calculations. Iterative approximation methods have been used to find some solutions.
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