A piston bowl is a recess in the piston crown primarily used in (direct injection) Diesel engines, where it basically forms the combustion chamber. The design and shape of the piston bowl influences the movement of air and fuel during…
Automating the Generation of a Structured Mesh for CFD Analysis
For the fully-automated shape optimization with CFD, one key task is to robustly automate the geometry and mesh generation as well as the actual CFD flow analysis. Within one of our ongoing research projects, GAMMA, we recently had the challenge…
Design Optimization of Propeller Boss Cap Fins
There is a lot of research going on to further improve the efficiency of ships by lowering the overall energy consumption. Besides the optimization of the operational profile of the ships (speed, trim, loading etc.), there are many things you…
Quick Guide: Geometry Scripting
Geometry scripting is really a cool thing! It allows you to create highly customized geometry parts – parts that are often impossible to create with the typical capabilities of a graphical user interface (GUI).
CFD Flow Domain for Ship Hulls from NAPA IGES Files
From time to time we receive NAPA IGES files from our maritime customers which are basically an assembly of often hundreds of single surface patches. The question is then: How can we quickly create a watertight, box-like flow domain for…
Introduction to PFF (Propeller Free Format)
For the exchange of propeller geometry data, CAESES® offers the possibility to import and export files using a format that is called PFF (Propeller Free Format). We support the PFF format since these files are widely used by ship and…
How To Create a Response Surface in 4 Easy Steps
Response surfaces, also known as surrogate models or meta models, are nowadays often used whenever the evaluation of a function is not directly possible or simply too expensive. In the context of engineering and simulation, a typical application is the…
Stefan Harries: What CAESES Does
What exactly is CAESES® and what does it? This short interview with one of the founders from FRIENDSHIP SYSTEMS, Dr. Stefan Harries, will give you some quick insights: Q: What is the most important functionality that CAESES provides? “Most…
How to Define the CAD Geometry for a Turbo Inlet Duct
When you design high performance engines in the field of motors sports, you can find a variety of complex duct geometries, air intake manifolds and other weird-shaped components. In order to increase the horse power of the engine, you can…
Video: Generate Streamlines from SHIPFLOW CFD Results
CAESES® comes with a set of CFD post-processing features, which are mainly used to quickly assess and compare the flow behavior of the generated design candidates. The visualization of 3D streamlines is a standard procedure of CFD engineers to get…