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Flow simulation

LESER sets the standard in product development

Casting simulation software, finite element analysis and flow simulation are digital tools which, combined with practical experience gained from 1.5 million safety valves in operation, form the basis for innovative product development.

Close coordination between all disciplines involved in the development process is crucial. The objective is to achieve the best possible product within the shortest time possible, working together with the designer. The brochure LESER THE COMPANY describes several examples. In this article, we introduce the people in charge and shed some light on their work.

Voltar

LESER sets the standard in product development.

Casting simulation, finite elements and flow simulation -  digital tools, coupled with the practical experience gained from 1.5 million safety valves in operation, form the basis for innovative
product development.
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Jakub Ozmina

Jakub Ozmina

My name is Jakub Ozmina, and I have been in charge of casting technology at LESER for nearly ten years. In my job, I use casting simulation for the development of castings.

Casting simulation maps the casting process, from the flow of the molten metal into the mold to complete solidification and cooling, in a complex combination of physical processes. The geometric shape of the casting as determined by the development engineer in an earlier phase of product development has far-reaching consequences for the casting process. Design optimization attempts can be elaborated internally, and their effectiveness can be validated through simulation. In all this, the designer works closely with the FTM team.

Based on the simulation results, LESER can define a highly optimized design. This streamlines the initial sampling process, ensuring robust casting quality and contributing to a stable supply chain. As a positive side effect, cooperation between the supplier of castings and LESER has improved significantly.

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Christopher Lie Indah Wahju

Christopher Lie Indah Wahju

My name is Christopher Lie Indah Wahju, and I have been working for LESER for just over ten years. As a CAE engineer, I am in charge of evaluating the structural integrity of our components. We casually refer to this as “stress analysis”.
Stress analytics is a good approach to calculating simple geometries. However, when various loads coincide or geometries are more complex, these methods quickly reach their limits or lead to designs with significantly thicker walls. The Finite Elements Method (FEM) is a numerical method to determine load-induced deformation and the resulting exposure of the component to expansion and stresses. Computer-aided simulation allows us to account for the geometry as well as stresses more precisely and make more realistic predictions of the actual component behavior.

Today, LESER uses FEM throughout the development process, from the early design stage through to documentation for approval purposes. FEM is a powerful tool that even allows us to answer specific customer inquiries.
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Dr Oleksandr Khalimon

Dr Oleksandr Khalimon

I am Dr Oleksandr Khalimon. I have been with LESER for seven years and am in charge of Computational Fluid Dynamics (CFD) applications.
CFD has been used successfully atLESER to support development processes.The use of powerful software accelerates the development of safety valves and makes it less costly by avoiding a large number of physical prototype tests.

While LESER in Hamburg owns one of the world's biggest safety valve test stands, the facility cannot be used for all nominal widths. CFD not only enables LESER to provide proof of the specified mass flow but can also shorten the development process by five percent.