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  1. Last week
  2. HI Matheus, You should be able to run CAESES 4 also utilizing the float license issued for your team. Then you have to start CAESES (float license) from the start menu. Best regards Claus
  3. Hello, everyone. I used to have a personal CAESES license using this machine and later I was able to acquire a floating license. I've just recently tried to install CAESES 4.4.2 again on this machine, already having a certain registered ID, which is expired. I've tried to reset the license by running CAESES_ResetLicenseSelection.bat as an administrator, but it doesn't work. Then I deleted all the content in AppData\Roaming\friendship\etc to get rid of the logs and possibly the ID, but the same message appears when I try running CAESES. What appears every time is this: I would like to know if there's a way of resetting the batch files so that I'm able to use the floating license again.
  4. Thank you so much. It worked really well. I didn't know how these function "at()" and "castTo()" worked. Thanks again, I couldn’t have pulled this off without your help!
  5. Hi Gabriel, Maybe using fv_all() command would be a better alternative. Please check the picture below; Basically, the fv_all command provides an objectlist. MyCurve.fv_all(0,myPoint:x) The command is applied to a curve. The first argument "0" refers to x-axis The second argument refers to the value on the selected axis. So result will be a list of points that have the same coordinate component value in the referred axis. As seen on the picture above, the curve would have two locations with the same x-coordinate value. Using "at(1)" I pick the second item within the objectlist (0 would be used to pick the first one). And finally I cast the entity to a FVector3 type object. Please let me know if you need further assistance. Cheers Ceyhan
  6. My doubt is actually not hard, but with the actualization i lose a feature i used to use. Here is the situation: I need to create some points on this curve and each point on the top has its correspondent on the bottom exactly on the same elevation in X axis. To do this i need to use the parameter witch corresponds to the elevation required, but in X axis the curve has 2 possible coordinates so that once i insert the function related to the creation of the point only one coordinate (on the top) is selected. Previously i could use "PointIntersection2D" and select a index, witch allowed me to choose any intersection the function would find. Here is an Image of the situation: The question is: is there any function or any oder way to select another index on the curve? P.S.: I could split the curve in two new curves, and repeat the steps, but i'd like to know if there is a solution like the feature i used to use.
  7. Earlier
  8. This might not be the perfect forum for this kind of question since CAESES is not a CFD tool, but rather a parametric CAD and optimization platform that allows you to connect any CFD (or other external) software. However, as far as I know, there is -- and has been for a long time -- extensive research carried out in the field of alternative surfaces both on micro and macro scale. Whether you would actually model these things (e.g. fish-like scales or certain roughness and patterns) or just treat them specifically in your CFD code via boundary conditions depends. Both ways are feasible and have their pro's and con's. Cheers, Heinrich
  9. RWM


    The reason I asked the question is that what I see is all the research that is being carried out at the moment is on hull shapes with a smooth surface. I'm looking at placing a certain shape plates over a hull to reduce the resistance. By applying these plates could the principle used in calculating resistance today be applied to this concept.
  10. Dear RWM, please provide some more information so that I can understand what you are having trouble with. Best regards, Heinrich
  11. Hi Christina, you are looking at curves, not surfaces (both have a category "curve based"). On your screen it seems that surfaces are collapsed: If you are on a small screen this is probably fine. Otherwise, you can change the font size by pressing ctrl and scrolling the mouse wheel. Best regards, Heinrich
  12. Hi, please try looking under the surface icon. Best, Sebastian
  13. RWM


    Here's a qeuestion. Why are ship hull surfaces still all flat?
  14. Dear Mr. Heinrich, It seems that I do not have the feature. What would you suggest me to do? Thanks.
  15. Hi Christina, if you are working with the latest (currently 5.0.6) version of CAESES, you should find lofted surfaces in the category of curve-based surfaces: I am not aware that this is excluded from non-commercial packages. apart from lofting you might want to take a look at sweep surfaces or, if non of the "standards" works for your application dig into the topic of meta surfaces. Cheers, Heinrich
  16. Greetings. I am currently using a non-commercial CAESES software for my ongoing project. However, I could not find the command on lofting. Here's my question. 1. Is it because I am using a non-commercial CAESES? 2. Is there any other command/method that I can use that is similar to lofting? Thank you in advance.
  17. Hi, I try to generate the waterjet intake duct model. At this moment, I have done to generate the four boundaries, but I have a problem with surface generation. I try many ways such as gordon surface, loft, and coons, but they do not work well. For now, I decide to divide the surface into two parts including the fore part and aft part, then I use the meta surface to generate the fore surface part by fspline curve section, while for the aft part, I use loft and it seems good. However, there are two errors. First, the surfaces are not connected that well between fore and aft. Second, there is the discontinous curve and the end of the duct. Waterjet_intake_Diffuser.fdbc
  18. Dear Kasilat, could you please explain the problem to me? Cheers, Heinrich
  19. Hi Mr. Claus. I am currently focusing on optimization of bulbous bow. But I have problems on transporting geomtry. May I know how to import geometry from CAESES to FINE/Marine?
  20. Hi Caramon0, Can you please provide me more details? Are you using the CAESES Workbench App? Maybe some pictures would be helpful as well. Cheers Ceyhan
  21. Dear Christina, as mentioned in the other post, you can refer to the "freeformdeformationbulb" tutorial to get a very basic idea of how to apply a ffd to modify an existing bulbous bow. This is one (out of a much larger set) of the available morphing techniques that come with CAESES5. For a bulbous bow I can also definitely recommend to look into delta shifts and BRepMorphing. With these 3 you should have absolutely everything you need to modify an existing bulb geometry. For an optimization of a bulbous bow I would definitely recommend to include some variation of the forward shoulder (so you can achieve a favorable cancellation of waves) as well. Once you do that, you will probably also need to keep an eye on hydrostatics (check if the Lackenby suits your needs) to avoid shifting the LCB to much, or changing the displacement beyond what's feasible for your application. We have recently hosted a Webinar about morphing capabilities in CAESES5 which might be interesting for you ("How to Efficiently Optimize your Geometry with Morphing in CAESES 5") here: https://www.caeses.com/support/videos/ About the optimization, there are plenty of other tutorials and useful guidelines included in the documentation that should give you a good starting point. Hope this helps to get you started. Best regards, Heinrich
  22. Dear Christina, the file Rull has posted further up seems to be very similar (if not identical) to the sample we ship with CAESES5. Just search for it in the help workspace (bottom left corner of the GUI) and you should find this: Best regards, Heinrich
  23. Kính gửi những người ủng hộ, Tôi muốn tạo sơ đồ cho thân tàu của mình qua SurfaceGroupLinesPlan. Sau khi gửi hình học thông tin được yêu cầu, một lỗi thông báo sẽ xuất hiện, cho biết: *** INFO parser command: The invalid default value [The default value for the paper object (Value: A0) '', 'NULL'.] Không có mục nào để chọn trong menu thả xuống tương ứng. Tôi có thể chọn hộp '' Cho phép Biểu thức '' trong Tab '' Đối tượng số '' nhưng tôi không nghĩ rằng nó có bất kỳ tác động nào đến điều này. Tôi có thể đánh giá hợp lệ cho '' giấy '' ở đâu? That’s bad anything with install? Cảm ơn sự giúp đỡ của bạn,
  24. Greetings Daphne. I am a student doing my final year project. Currently I am looking for document/file for bulbous bow optimization using ffd method. Is it possible for me to get the model of the bulbous bow for me to practice my ffd? It would mean so much to me. Thank you in advance.
  25. Greetings Rull. I am a student doing my final year project. Currently I am looking for document/file for bulbous bow optimization using ffd method. Is it possible for me to get the model of the bulbous bow for me to practice my ffd? It would mean so much to me. Thank you in advance.
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