Hydraulic engineering encompasses a diverse range of applications, including water resources management, flood control, dam and levee design, and the development of sustainable urban drainage systems. CFD simulations are valuable tools for addressing a wide range of typical problems in hydraulic engineering:

  • Pipeline flow analysis: Evaluating fluid flow in pipelines, including the effects of diameter, material, roughness, and flow rate on system performance.
  • Head losses estimation: Assessing head losses caused by friction, pipe bends, and obstructions in hydraulic systems, and identifying potential improvements.
  • Water elevations prediction: Modeling water elevations in dams, levees, and rivers under various conditions, such as extreme rainfall events or changes in riverbed geometry.
  • Water distribution network optimization: Analyzing and optimizing water distribution networks to ensure adequate water supply, pressure, and flow rates throughout the system.
  • Sediment transport and erosion: Investigating sediment transport processes and erosion in rivers, channels, and coastal areas to inform the design and maintenance of hydraulic structures.
  • Turbulence and vortex analysis: Studying turbulent flow and vortex formation in hydraulic systems to predict and mitigate their impact on system performance and structural integrity.
  • Cavitation prediction: Identifying areas susceptible to cavitation in pumps, turbines, and other hydraulic equipment, which can lead to performance degradation and equipment damage.
  • Fluid-structure interactions: Analyzing the interactions between fluid flow and hydraulic structures, such as bridges, culverts, and offshore platforms, to ensure structural integrity and safety.

Flow distribution

Computational Fluid Dynamics (CFD) simulations have become an invaluable tool in the field of hydraulic engineering, providing numerous benefits in solving flow distribution problems. The ability to achieve even flow distributions across channels, tanks, and pipes is critical to the efficient operation of hydraulic systems and ensures optimal performance in various applications.

  • Cost and Time Efficiency: CFD simulations enable hydraulic engineers to analyze complex flow patterns without the need for physical testing, reducing costs and time spent on experiments. By quickly identifying and resolving issues related to uneven flow distributions, engineers can optimize designs and prevent potential problems before they arise.
  • Enhanced Design Accuracy: CFD simulations allow engineers to visualize and analyze flow behavior under various operating conditions, leading to more accurate and optimized designs. This improved accuracy is crucial for achieving even flow distributions, preventing unwanted phenomena such as flow separation, turbulence, and cavitation, which can negatively impact system performance.
  • Sustainability and Environmental Considerations: As hydraulic systems become more advanced and environmentally conscious, CFD simulations provide an effective means of optimizing designs for minimal environmental impact. By achieving even flow distributions, engineers can reduce energy consumption, minimize erosion, and promote sustainable practices.
  • Improved Safety and Reliability: Uneven flow distributions can lead to system failures, structural damage, and potential hazards. CFD simulations help hydraulic engineers identify and mitigate these risks, ensuring the safety and reliability of hydraulic infrastructure.
  • Versatility and Scalability: CFD simulations can be applied to a wide range of hydraulic engineering applications, from small-scale pipe networks to large-scale water distribution systems. This versatility allows engineers to address flow distribution problems across various scales, enhancing the overall efficiency and effectiveness of hydraulic systems

Water surface effects

Stirred tank reactors (STRs) are widely used in chemical, pharmaceutical, and other process industries for mixing, reaction, and mass transfer processes. However, the complex fluid dynamics in STRs often lead to undesirable water surface effects, such as splashing, air entrainment, and vortex formation. Computational Fluid Dynamics (CFD) simulations have emerged as an effective tool to analyze and minimize these effects, ensuring optimal reactor performance and product quality.

  • Visualizing Complex Fluid Dynamics: CFD simulations provide a detailed insight into the fluid flow patterns within stirred tank reactors. By simulating various operating conditions and geometries, engineers can visualize the water surface effects and identify the root causes of unwanted phenomena.
  • Minimizing Splashing: Splashing can lead to material loss, contamination, and hazardous conditions. Through CFD simulations, engineers can optimize impeller design, agitation speed, and other parameters to reduce splashing and maintain a stable liquid surface.
  • Preventing Air Entrainment: The unwanted entry of air into the liquid phase can negatively affect product quality, mass transfer efficiency, and process control. CFD simulations enable engineers to evaluate the effects of agitation, baffle design, and liquid level on air entrainment. This allows for the implementation of appropriate design modifications to minimize or prevent air entry into the liquid.
  • Reducing Vortex Formation: The formation of a vortex at the liquid surface can lead to reduced mixing efficiency, air entrainment, and even damage to the impeller. By utilizing CFD simulations, engineers can study the impact of impeller type, positioning, and agitation speed on vortex formation. This helps in selecting the most suitable design parameters to prevent or minimize vortex formation and ensure optimal reactor performance.
  • Enhanced Process Control: By accurately modeling and understanding the water surface effects in stirred tank reactors, engineers can develop more effective control strategies. This can result in improved mixing efficiency, enhanced mass transfer, and better product quality.

In our videos we introduce CFD solutions for hydraulics

The most innovative technology for analysing and optimising designs in the field of Hydraulic Engineering is called „Computational Fluid Dynamics“. This is the simulation of fluid flow using computational procedures.

CFD in water treatment: distribution chamber

Unsteady analysis of flow distribution in distribution chamber in a wastewater treatment plant.

This is an easy example of how automatic optimization of hydraulic structures can be achieved with CFD simulations.

CFD simulation of the filling process of a hydraulic facility. This simulation shows the potential of computational fluid dynamic as a reliable tool for analyzing hydraulic problems and dynamic processes involving fluid flow.

Do you have questions about our CFD simulations?