Inlet works are complex hydraulic structures and may comprise screens, grit removal systems, bypass and overflows. The satisfactory operation of each element of an inlet works is dependent on the hydraulic profile in order to maintain acceptable velocities, head losses and satisfactory flow presentation. Computational Fluid Dynamics (CFD) provides an assessment of the hydraulic performance of an inlet works; this is summarised in the following topic areas.

Design review

Computational Fluid Dynamics (CFD) can offer a cost effective method of assessing the likely performance of an inlet works. In arrangements where site constraints dictate a departure from a conventional design approach to the layout, CFD modelling can identify, compare and develop alternatives.

Flow and velocity profiles

Flow and velocity profiles within an inlet works are an important aspect of the hydraulic regime required to ensure satisfactory operation of plant, such as screens, grit/grease removal systems, bypasses and overflows. Computational Fluid Dynamic (CFD) modelling can readily assess flow patterns and velocities generated throughout a works over a comprehensive flow range to identify any potential areas of non-compliance. The abstracted data may be presented as streak-line plots and velocity contours at any given point within the system to allow comprehensive understanding of the operating regime.