All ideas

The cumulative area calculation discounts everything before a flow through structure and the nodes attached to the structure. LLFA's are now requesting calc files due to the print out also reading your incorrect pathing of calculations. Theirs no ...

We have recently been challenged by Wiltshire LLFA regarding half drain times. As I understand it, Flow calculates the half drain time to CIRIA 156 which gives a significantly longer half drain time than the BRE365 method that Micro Drainage uses....

We currently have an existing building which is due to be refurbished. As part of the proposed works, we are introducing an attenuation structure with a restricted discharge flow of 1 l/s. In the existing condition, surface water freely discharges...

This is especially applicable now given some areas may have 100% impermeable while other will have greenfield with a possible option to turn to impermeable. Users can also adjust Cv value locally. The design report should contain the new additions.

Improved modelling, including building drainage so designs can be modelled to base of internal stacks within buildings to allow for greater collaboration between other design disciplines for general clash detection. Typically, Architects, Structur...

It would be useful for engineers detailing and coordination to export directly from flow to IFC

If designing a lined porous paving system, you are unable to have it non-attenuating. This requirement should be removed to design it to discharge elsewhere

It seems that if a pipe has a swale upstream then the pipe uses the Manning's equations to compute flows etc, but if it has nothing upstream or a pipe upsteam then it uses the Colebrook-White equations. This means that on the same storm water syst...

Always having mass balance issues when utilising flow through structure. It could be something from adding orifice to inlets same size as pipe, lifting/dropping structure slightly increasing/decreasing length of structure, that sorts the issue. Th...