Activity for Marko J.
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Marko J. created ticket #207
Request a new feature: implement a small routine for cp_crit
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i'm sorry, you can close this ticket. I have seen that the temperature is specified seperatly, so the viscosity is also changing due to temperature. your feature was correctly implemented.
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false reynoldsnumber over the span when the altitude is changed
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Request: automatic calculation of Ma.sqrt(Cl) in Type 2
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NACA Foil Generator report illegale Number
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here the xfl-file
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i get some erros when upload the files
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Hello André, sorry may mistake.... Here are the atteached files. As you can see the style of the lines are not correct in all "windows" Best regards
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Hello André sorry it is not a bug. V is not Vx or Vz with CL/CD over V the plot is correct. PS: "Store points outside the polar mesh" was unchecked, so this was not the reason.
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Display Bug #3 incorrect velocity Opp
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Display bug
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Display Bug in XFoil Direct Analysis for Xtr Top
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LLT result differs from 6.44 and 6.45
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no Efficiency over Velocity plot for panel Method
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matplotlib.version '1.3.1' ok, i'll try to update my tools
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bug: in xoptfoil_visualizer
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hello i found my "bug" when i change something in inputs.txt file, my texteditor change sometimes the apostroph sign to a similar one.... and than xoptfoil didn't recognise it... thank you for your help
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bug with: moment constraint: specify
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bug: panel method with activated tilt
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wrong orientation of Lift in 3d
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Dear Andre, i think i've found something.. for an wing with constant chordlength the results are ok, th ratio's of different maimxa is 4/3. but I dont know if it's also true for an arbitray wing.
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bug: lift calculation compare elliptic vs. bell
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Dear André, thank you for implementing the correct formulation of a bell-shape lift...
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hello andre, i have forgotten this, thank you. btw if induced alpha = atan (-w /...
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thank you for your thoughts i think you coould close this thread.
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bug: compare LLT vs VLM2 vs PANEL
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This would be awesome if we could implement some experimental functions like this:...
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For this simulation i get a negative damped function for the spiral mode. But sometimes...
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request: downwash-graph in OpPoint View
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Hello, i try to avoid spiral mode instabiliy, how could i achieve this? which parameters...
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Anf if your wing has a AR of 6 or higher and your sweep angle is 0 or has a very...
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bug or request: Direct Foil Design: no refresh of spline parameters
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I think the algorithm could work with follwing : 1) first move the leading edge from...
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Hello Giorgio, an optimization inteface would incerase my developing process. I have...
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The De-Rotate function is two times implemented - in XFoil Direct Analysis - in Direct...
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Hello André, here is the project file. When you change the sweep you will see it...
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bug: De-Rotate the Foil in XFoil Direct Analysis
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hello, what is the definition of sweep angle for an general wing and how it is implemented...
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scale wing: sweep scaling
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request: different target curve
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Request: multithread VLM analysis
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Dear developer, sorry i found my mistake. The stability analysis ingores viscous...
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fancy CL/CD values when using controlled flaps
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Hello André, first of all xflr5 is a great program! It helps me a lot to understand...
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Hello André, first of all xflr5 is a great program! It helps me a lot to understand...
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automatically old polar activated when created a new plane
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hello, i have some questions, to increase the accuracy of my simulation i will increase...
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