Bella Field

Hello! The NACA 8H12 is a really popular airfoil for rotary-wing systems as well as the NACA 9H12. Unfortunatelly, there are no dat-files for the last mentioned in several databases. I'm looking for it because I want to do some tests in XFLR5 with it. The result of my research is an old publication of the National Advisory Committee for Aeronautics. Here a data-table is included. Maybe it is also possible to generate an own dat-file with it. That is why, I want to ask you who has some experiences...

Hello everyone, I have a little question concearning the export of polar graphs. I have created over 200 polars of an airfoil that I need for further calculations in Matlab. That is why I want to export the data to different csv-files. Now my idea: it would be great if it is possible to export all of these polar coordinates with a view clicks into one certain folder. Here I want to have one csv-file for one certain value of Re (for one polar). Of course I could create one file with the data of all...

Hello Jochen thank you very much for the project file! It is really helpful especially for my further work! I think my dat. file has a data mistake inside because my airfoil also looks a bit different. Do you have a certain website or source from which you download these dat-files? Regards Bella

Hello everyone I am looking for some help in creating the polars for the NACA 8H12 in XFLR5. Maybe it seems to be a really easy question for an expert but I am a beginner in using this software. I have downloaded the dat-file for the mentioned airfoil and opened it in the program. That was no problem. Now my question: Unfortunatelly there is a (in my opinion) not wanted line at the leading adge of the airfoil. If I want to increase the number of panels in the Refine Globally menu the whole airfoil...