Mr. Claus Abt

Please install CAESES after downloading it from our website CAESES.com/downloads Cheers Claus

That is actually the case. If you use the result pool, exactly that happens. You can even define an epsilon (at the design variable) which will regard two variable values as "the same" within that range. If e.g. all design variables for a large structure are within 0.1 mm, you should probably not trigger the simulation .... the default is zero. Cheers Claus

Depends a bit on your computer resources. If you can do many evaluations, it is fine. You can also try the Dakota surrogate models to save time and cpu-hours.

Do you mean the profile shape or the contour?

HI Matthias, I would probably use a polycurve and assemble it from lines and curves depending on the individual needs of the particular region. Cheers Claus

Please take a look into the documentationBrowser and watch some video tutorials on our website.

HI Rull, First of all you need a software to calculate the resistance (or better the power that is needed to propel your vessel). That could be products by ANSYS, Star-ccm+, FINE/Marine, Shipflow or similar. Then you have to set up a parametric model, or, alternatively import a geometry and apply parametric variations in CAESES. To keep the same displacement, you can either adjust the draught of the vessel to meet the displacement, or you can apply transformation to the vessel that will adjust the displacement at the desired draught in a nested way. Once you have defined the design variables that change the hull form, have connected to the CFD code of choice and calculate the performance, you can use those in a designEngine in CAESES to run automated optimization. You will find some tutorials on each tasks mentioned in the tutorials shipped with CAESES, or in our YouTube channel. Hope that helps to start with, Claus

Hi All, Please try out this parametric CAESES model of a volute for a blower. The basic shape is controlled by a function (red) to control the offset of the outer shape from the inner circle. If you switch off the visibility of the trimesh (named volute, click on its icon in the object tree) you can see the surface topology behind it. If you are a bit experienced, such a model is set up in 15 min from scratch. Have fun!volute1.fdb

Parametric models are typically built from various geometric or non-geometric entities, e.g. a projection curve depends on the curve that is going to be projected and the surface it is supposed to lay on. In most programs the user creates the desired object first (in this case the projection curve) - and is subsequently asked to supply the necessary objects (surface, curve and possible projection direction) until the configuration is complete. In CAESES/FFW missing information is indicated by a * next to the required attribute and you can set the relationship via drag and drop or typing. However, if you have selected a surface and a curve already when creating the projection curve, they will be automatically associated to the attributes. Note: Whenever the selection set fits to a creator called, the attributes will be set immediately. For every object you will find a list of available creators in the type documentation.