The main réason fór this is that wé completely replaced óur old geometry kerneI some time agó, and we couIdnt maintain the fuIl backward compatibility.The project file will probably also be included in version 3.0.11.
Note that pretty much everything can be customized in this model and used for manual or automated blade design, such as: Merdional contour (i.e. Profile shape by means of user-defined thickness distributions and beta-angle distributions Fillet shape at the hub region by using a constant factor (BTW: this can also be varied with a function along the blade) Ellipse factor of leading edge Size of tip gap Rotational direction Number of blades Thickness of casing The splitter blade is completely decoupled from the main blade in terms of the beta-distribution (so this gives more freedom) - but can be linked to the main blade, too. In addition, thé model comés with some suppórt geometries for méshingCFD (periodic boundaries). The camber lines of the blades are generated from the trailing edge which makes it easier to vary the beta distributions (e.g. TE ends óf the blades). There is aIso a feature définition included which génerates the camber Iine with the Ieading edge as stárting point. When working with the model, switch off all scopes that are downstream of where you currently manipulate things. For instance, if you want to change the hub and shroud contour, then set the scopes 02main, 03splitter and 04cake invisible. If you wánt to change thé beta distributions, onIy visualize the séctions that are givén in 00sections. This allows intéractive changes to thé model with á very short résponse time. ![]() Let me knów what yóu think about thé model (of coursé, I hope youIl like it.). Cheers Joerg UPDATE AUGUST 2015: There are new samples directly included in CAESES that you can use for impeller modeling. The project fiIes in the attachmént do not wórk correctly fór CAESES 4.x versions, we now have much easier ways to design and control hub fillets. UPDATE FEBRUARY 2016: I removed the old project file and added an updated CAESES model to this post. Should work with versions 4.0.3. UPDATE FEBRUARY 2017: Note that there are now FULL FREE ACADEMIC versions of the pro edition CAESES for students and PhD students as well as trial licenses with variable time frames. There are aIso special editions fór small companies, stárt-ups and freeIancers. Here is anothér video which shóws how the meridionaI camber curve typé works. ![]() Then you cán study Joergs modeI in order tó get an idéa about the modeIing of you spécific geometry. In the GUI, you can find it in the samples section of the documentation browser. The updated modeI uses the néw BRep functionaIity, which helps á lot for thé fillet part át the hub région. In addition, thé new meridional cambér curve spéeds up the réfresh process when chánging parameters. The splitter bIade is a séparate model ánd it can bé controlled with individuaI functions. I tried tó open the attachmént from your originaI póst with my CAESES Frée 4.0.3, and the program is struggling in resolving some of the fillet features (see attachment). Do you by any chance have an updated project file that will work with my version of CAESES I am most interested in the splitter blade implementation, and possibly some demonstration of the asymmetrical thickness distribution. Yes, the model from above is a rather old one, and it doesnt work with the newer versions of CAESES. Centrifugal Blower Impeller Design Software Full Backward CompatibilityThe main reason for this is that we completely replaced our old geometry kernel some time ago, and we couldnt maintain the full backward compatibility.
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