Sogea Maroc used CFD simulation with SimScale to assess the efficiency of a water treatment basin

50% of the design time saved by using numerical simulation instead of physical tests

Design time saved

Sogea Maroc logo

Sogea Maroc is a reference company in the fields of hydraulics, industrial engineering, and construction and engineering structures. As a major player in Marroco, it celebrates 83 years of challenging collaboration with clients from all over the world. The strong engineering and project management experience combined with a reactive organization and partnerships with local companies, enables Sogea Maroc to deploy solutions that are both global and scalable.

The Challenge

Investigating the Design of a Water Treatment Facility Basin

The engineers at Sogea Maroc needed to investigate the design of a water treatment facility basin and check for any possible disturbance phenomena as well as determine the overflow of the structure based on the provided operating conditions (inlet flows and maximum outlets) with the filling of the basin.

Phase fraction of free surfaces
Phase Fraction of Free Surfaces

The main goal in using a CFD simulation, more precisely free-surface multiphase flow modeling, was to determine the flow topology at the outlets of the basin.

SimScale has allowed us to have a very fine knowledge not only in terms of flow type and flow regime but also flow velocities, flow distribution and turbulence phonomenes that occur at the same time on the inlets and outlets of the projected water storage basin, both in the case of maximum flow operation and in the case of low flows. This allowed us to optimize the design and dimensioning of the structure and to provide the necessary equipment and facilities to put in place both in the working and the final project phase.

Sorgea Maroc engineer

Fadili Tarik

CFD Engineer

How They Solved It with SimScale

Using CFD to Accurately Assess Water Level and Flow Velocity Distribution for the Basin

Sogea Maroc’s engineering team decided to go with the SimScale cloud-based CAE platform and simulated a pre-filled basin configuration with multiple inlets and several free and suction outlets. In order to be able to assess the free-surface contour at different times, showing the water level and the height with reference to the basin floor, Fadili Ham, CFD engineer at Sogea Maroc, ran a multiphase analysis.

Mesh Used for the Multiphase Flow Analysis, Three Million Elements
Mesh Used for the Multiphase Flow Analysis, Three Million Elements

After being uploaded onto the platform, the CAD was meshed using the hex-parametric algorithm with different types of refinement. The result was a 3-million elements mesh as seen above.

“With the SimScale hydraulic model, we were able to highlight our technical solution and satisfy our customer. Thus, we were able to optimize the cost of carrying out the project,” mentioned Fadili Tarik.

The Results

Water Level and Free Surface Assessment Over Time on a Facility Basin

The CFD simulations performed in the cloud with SimScale gave Sogea Maroc’s team valuable insights into the performance of the facility basin. The results shown the flow topology, velocity magnitude, and direction of the flow as it moves within the facility basin.

Recirculation regions could be observed around the suction pipes. Fadili could then assess that these recirculations were present as some of the pumps were not operational during the analysis. Hence the flow was sucked and recirculation regions were formed.

Velocity Contour of Water Flow
Velocity Contour of Water Flow

In the end, the simulation results were able to show that for the given flow conditions, no overflow of the basin would happen and the water level drop from the initial pre-filled height would be under control and would not cause operational problems.

Details of Velocity around Pumps Used in the Facility
Details of Velocity around Pumps Used in the Facility

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