New CoreMarine breakthrough in Smoothed Particle Hydrodynamics (SPH) | CoreMarine

New CoreMarine breakthrough in SPH

Research paper on Smoothed Particle Hydrodynamics

Smoothed Particle Hydrodynamics
Pressure field snapshot at t = T /4. Left: Normal fluid jet impact against a solid wall. Right: Normal fluid jet impact.

13 November 2024

CoreMarine has released a new research paper, Boundary conditions for SPH through energy conservation, detailing a significant leap forward in computational fluid dynamics (CFD) methods. This is key to CoreMarine’s work to advance cutting-edge asset simulation technologies.

The paper by CoreMariners Jose Luis Cercos-Pita and Pablo Eleazar Merino-Alonso, together with Daniel Dugue and Javier Calderon-Sanchez from ETS Ingenieros Navales, Universidad Politécnica de Madrid, was published in the journal Computers & Fluids, vol. 285.

The challenge

Simulating fluid behavior accurately with Smoothed Particle Hydrodynamics (SPH) is complex, especially when it comes to managing boundary conditions (like walls or barriers) without sacrificing energy conservation or stability. Most current methods struggle with this, leading to less accurate results.

“Dealing with boundary conditions in SPH poses significant difficulties. Despite considerable attention from researchers and numerous publications dedicated to formulating and assessing wall boundary conditions, few of them have addressed the crucial aspect of energy conservation.”
- Jose Luis Cercos-Pita

Our breakthrough

The research team has developed a novel approach that introduces an energy-conserving boundary condition within the Boundary Integrals (BI) framework. This ensures:

  • Enhanced stability in simulations involving solid boundaries.
  • Accurate energy conservation, even during complex interactions like impacts or oscillations.

We tested this in a variety of real-world applications, from modelling the impact of a fluid jet to simulating a spacecraft’s water landing. Our method has proven its versatility and reliability in diverse and challenging scenarios.

Why it matters

This advancement in SPH not only improves simulation accuracy but also opens the door for more robust CFD applications across industries—from designing safer hydraulic structures to more precise modelling of fluid-structure interactions in aerospace.

The team’s work will be used to refine and improve our own suite of CoreDigital tools.

Contact us if you’d like to dive into the details of this new report, or learn more about our industry-leading software, engineering and construction for offshore assets.

⬇️Download the paper here