Search found 40 matches

by Srinivasa.Sudharsan
Wed Sep 21, 2016 10:02 am
Forum: Rotor Aerodynamics
Topic: Movable trailing edge flaps implementation
Replies: 42
Views: 17631

Re: Movable trailing edge flaps implementation

thank you xiao; sir i have another query that , i have chosen number of foil as 10 If i try to use flap at 70% of radius of the blade then is it enough to use the xfoil designed data for last 3 airfoil file ?? i have attached the aerodyn input file with the data you have sent with flap -5,0 and 5 de...
by Srinivasa.Sudharsan
Wed Sep 21, 2016 9:05 am
Forum: Rotor Aerodynamics
Topic: Movable trailing edge flaps implementation
Replies: 42
Views: 17631

Re: Movable trailing edge flaps implementation

Hi xiao,
I am asking about the impact of the flap angle input in FAST outputs!!not while inputting the flap angle??? is there any way to display the switching of airfoil data based on the flap deflection outside ???
by Srinivasa.Sudharsan
Wed Sep 21, 2016 4:11 am
Forum: Rotor Aerodynamics
Topic: Movable trailing edge flaps implementation
Replies: 42
Views: 17631

Re: Movable trailing edge flaps implementation

hi Xioa sir;
Everything is ok sir. But where to get the XY coordinates of the blades used in the NREL wind turbine and also how to check the flap action(ie) the airfoil switching in FAST-MATLAB interface. I have designed the airfoil for different flap angles -5 to 5 degrees,
by Srinivasa.Sudharsan
Thu Sep 15, 2016 3:40 am
Forum: Rotor Aerodynamics
Topic: Movable trailing edge flaps implementation
Replies: 42
Views: 17631

Re: Movable trailing edge flaps implementation

Hi xiao, To generate airfoil data ,using Xflr5 i have designed a foil and flap angle as 1,2,3,4,5 degrees. Using the XY coordinates , i have substituted in airfoilprep.But there no much change in the output CL and CD values.please brief the steps to generate the airfoil data using these two software...
by Srinivasa.Sudharsan
Thu Aug 18, 2016 4:50 am
Forum: Rotor Aerodynamics
Topic: Movable trailing edge flaps implementation
Replies: 42
Views: 17631

Re: Movable trailing edge flaps implementation

hi jason; I am trying to use multiple airfoil data like below: """ 3 Number of airfoil tables in this file -5.0 0.0 5.0 Table ID parameter 11.4 11.9 12.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -1.2394 -3.2023 -5.3040 7.4890 7.8301 7.8602 1.6455 2.0640 2.4287 -0.5318 -0.3739 -0.1029 -0.58...
by Srinivasa.Sudharsan
Thu Aug 18, 2016 3:14 am
Forum: Rotor Aerodynamics
Topic: Movable trailing edge flaps implementation
Replies: 42
Views: 17631

Re: Movable trailing edge flaps implementation

hi Jason.Jonkman , I have successfully compiled FAST with Multitab flap control option. This is a active flap control.Now from where the airfoil data could be generated for the flap which is at 70% to 95% from the blade root for various flap angles(i.e. angle of attack of that span). In AirfoilPrep ...
by Srinivasa.Sudharsan
Thu Aug 11, 2016 5:09 am
Forum: Computer-Aided Engineering Software Tools
Topic: Variable airfoils using the MulTabLoc USER function
Replies: 17
Views: 5741

Re: Variable airfoils using the MulTabLoc USER function

hi Dr.Bonnie;
i have successfully compiled FAST8.12 with active flap control. But can we linearize FAST with the multitab flap angle as input like pitch angle???
by Srinivasa.Sudharsan
Mon Aug 08, 2016 4:30 am
Forum: Computer-Aided Engineering Software Tools
Topic: why FAST8.12 is not available to download??
Replies: 3
Views: 765

why FAST8.12 is not available to download??

hi Dr.Bonnie ;
i Have a source code of FAST8.12 but i am not able to compile with the FAST8.16 version. But the FAST8.12 is not available in your website. how to solve this problem ?
by Srinivasa.Sudharsan
Mon Jul 25, 2016 10:58 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Variable airfoils using the MulTabLoc USER function
Replies: 17
Views: 5741

Re: Variable airfoils using the MulTabLoc USER function

Hi Dr.Bonnie:
thank you very much for your fast reply!! I did as you said after running RunRegistry also i get the following errors which restricts the generation of FAST_Library.dll which is need for simulink. kindly hep me to rectify these errors since i not well versed in fortran language....
by Srinivasa.Sudharsan
Mon Jul 25, 2016 1:38 am
Forum: Computer-Aided Engineering Software Tools
Topic: Variable airfoils using the MulTabLoc USER function
Replies: 17
Views: 5741

Re: Variable airfoils using the MulTabLoc USER function

hi Dr.bonnie ,
i am trying to enable flapcntrl as Xiao did in his post viewtopic.php?f=4&t=1171&p=7507#p7507, but when i compile i get the errors a in the buildlog. kindly help in rectifying it if you can, thank you!!
by Srinivasa.Sudharsan
Mon Jul 25, 2016 1:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: Variable airfoils using the MulTabLoc USER function
Replies: 17
Views: 5741

Re: Variable airfoils using the MulTabLoc USER function

Hi Mr.Xiao,
I am trying to enable flapcntrl as per your post but when i compile i get the following error as in buildlog kindly help me in rectifying it :
by Srinivasa.Sudharsan
Thu Jul 21, 2016 3:23 am
Forum: Computer-Aided Engineering Software Tools
Topic: Instructions for Compiling FAST
Replies: 200
Views: 111515

Re: Instructions for Compiling FAST

hi Keshan.He , i am trying to enable MultiTab option as per your instruction in post: https://wind.nrel.gov/forum/wind/viewtopic.php?f=4&t=642&p=5653&hilit=fast_library#p5653, but iam getting errors as shown in buildlog attached. Is it the total changes required that you mentioned in the...
by Srinivasa.Sudharsan
Wed Jul 20, 2016 10:34 pm
Forum: Rotor Aerodynamics
Topic: Movable trailing edge flaps implementation
Replies: 42
Views: 17631

Re: Movable trailing edge flaps implementation

hi xiao sun;
i am getting the following errors while compiling the FAST_library.dll in visual studio kindly help me to rectify these errors.
by Srinivasa.Sudharsan
Wed Jul 20, 2016 1:00 am
Forum: Computer-Aided Engineering Software Tools
Topic: Instructions for Compiling FAST
Replies: 200
Views: 111515

Re: Instructions for Compiling FAST

hi Dr. Bonnie; thank you very much for you reply. As per your instruction i have successfully compiled the FAST8.10 using VS2013 making some changes in source code and FAST_Project_32.exe file is generated. But the thing is how to interface with simulink. Can we use the same FAST_Library.dll, MAP.dl...
by Srinivasa.Sudharsan
Mon Jul 18, 2016 10:20 pm
Forum: Computer-Aided Engineering Software Tools
Topic: Instructions for Compiling FAST
Replies: 200
Views: 111515

Re: Instructions for Compiling FAST

hi Dr. Bonnie ;
I am trying to compile FAST8.10 using visual studio2013 with Intel parallel studio 2016 as per your instructions, but while dubugging i get the following errors, kindly help me to rectify it. I have attached the cmd image:

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