WHY CHOOSE SIMCENTER STAR-CCM+™ FOR CAVITATION SIMULATION

WHY CHOOSE SIMCENTER STAR-CCM+™ FOR CAVITATION SIMULATION

Simcenter Star CCM+

Fluid cavitation in Simcenter generates gas bubbles in water around fast-moving objects in low-pressure environments, which is an undesirable reality for designers and shipbuilders. It is a natural phenomenon that must be carefully mitigated and controlled.

Cavitation leads to many issues for ship owners and operators, including:

• Noise
• Vibration
• Erosion
• Adverse impact on performance
• Structural damage

Predicting cavitation and exploring alternative designs to reduce it is essential in the design process. Even small adjustments to propeller shapes can significantly improve ship performance. However, cavitation is a complex challenge to address.

Traditionally, cavitation tunnels have been used to evaluate propeller performance and cavitation. But experimental data is only available at the end of the design process, making it costly and difficult to explore alternatives. Moreover, scaled-down propellers and hulls in tunnels cannot accurately replicate real-world cavitation.

Fortunately, advances in simulation technology allow the maritime industry to better plan for cavitation mitigation and its impacts. Read on to learn how cavitation simulation can improve cavitation prediction, accelerate the design process, and produce better, more efficient ships.

What Can Cavitation Simulation Deliver?

Computational Fluid Dynamics (CFD) allows you to design and optimize ships before any prototype testing. A digital twin of the ship is created and evaluated under various operating conditions. Instead of modeling individual gas bubbles, CFD uses a cavitation model to simulate bubble formation.

Marine CFD provides designers with additional insights and capabilities to simulate propeller and hull performance quickly and accurately while accounting for cavitation effects.

Why Choose Simcenter STAR-CCM+™ for Cavitation Simulation

Simcenter STAR-CCM+ is a multiphysics CFD software within Siemens’ Xcelerator portfolio. It simulates products operating in real-world conditions within an integrated environment, including CAD, automated meshing, multiphysics CFD, post-processing, and design exploration. This allows designers to identify the best designs faster.

Specifically for cavitation simulation, Simcenter STAR-CCM+ includes two validated cavitation models: the Rayleigh-Plesset model and the Schnerr-Sauer model. With Simcenter STAR-CCM+, you can perform full-scale simulations and predict cavitation under realistic operating conditions. This approach provides more accurate cavitation assessments at a larger scale than model-scale experiments.

Source: Siemens

SDE TECHNOLOGY CO., LTD (SDE TECH) was established in 2014. By 2018, we became a Smart Expert Partner – a leading partner of Siemens Digital Industries Software in the Southeast Asia – Pacific region for Siemens NX (Unigraphics NX), Simcenter, Solid Edge, Tecnomatix, and Teamcenter solutions.