Revision as of 22:54, 31 January 2024 view source Angelos Livogiannis (talk \| contribs) 182 edits →Spacing of Road Gullies (UK standards: BS EN 124 and BS7903) ← Older edit		Revision as of 20:32, 2 February 2024 view source Angelos Livogiannis (talk \| contribs) 182 edits →UK Water Industry Research (UKWIR) Inlet Capture Tool Newer edit →
Line 119: == UK Water Industry Research (UKWIR) Inlet Capture Tool == In 2023, the UK Water Industry Research (UKWIR) Limited released the Modelling Sewer Inlet Capacity Restrictions Report [https://ukwir.org/modelling-sewer-inlet-capacity-restrictions/ Modelling Sewer Inlet Capacity Restrictions Report]. The main aim was to develop a sewer modelling methodology to enable the representation of inlet inflow restrictions, focusing on the development of a new 1D model approach to provide more accurate model sewer flooding predictions. The new modelling approach has been devised by combining the findings from a literature review and the development of semi-empirical relationships from academic studies which investigated factors affecting inlet capacity. The new approach allows for 2 types of gully response reflecting 2 flow conditions: Subcritical flow on a shallow road gradient and Supercritical flow on a steep road gradients. A threshold of 0.02 is used to distinguish between shallow and steep road gradients. The reported equations can be used for the production of input inlet curves for TUFLOW 1D pit inlet modelling. A template for the generation of the UKWIR Inlet Curve can be downloaded from [https://downloads.tuflow.com/Other/Inlet_Spreadsheets/Inlet%20Curve%20Capture%20tool%20v4.xlsx here]. The template determines both Subcritical Head-Discharge and Supercritical Head-Discharge relationships obtained from the Modelling Sewer Inlet Capacity Restrictions Report based on user input values of water depth (in metres). Two sets of curves can be generated, curves based on default parameters, and those based on user-defined parameters.

1D Pits: Difference between revisions