XFLR5 To AVL Instructions
User Manual:
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Page Count: 1
Export'and'Format'a'XFLR5'Plane'for'AVL'
1. In%XFRL5,%start%in%the%Wing%and%Plane%Design%viewing%window.%%Under%“Plane”,%go%to%
“Current%Plane”%and%“Export%to%AVL”.%
2. Open%the%exported%file%using%a%text%editing%application.%%Change%all%airfoil%names%to%the%
following%format,%where%the%NACA%is%above%the%airfoil’s%NACA%number.%NOTE:%A%flat%
airfoil%is%NACA%0005.%
%
NACA%
0014%
%
3. To%export%the%mass%file,%under%“Plane”->”Current%Plane”%again,%go%to%“Define%Inertia”.%%
Then,%choose%“Export%to%AVL”.%
4. Save%both%the%.avl%and%.mass%files%under%“def”%in%the%aircraft’s%Github%folder.%%For%
example,%the%file%path%for%UltraStick120%would%be%AeroModels/Aircraft/AVL%
Def/UltraStick120/def%
5. Located%in%the%AeroModels/Analysis/AVL%Wrapper%folder%on%Github,%update%one%of%the%
MATLAB%script%files%so%the%variable%“configName”%is%set%to%the%name%of%the%plane.%%Save%
this%script%with%a%new%name%in%the%format%script(insert%plane%name).m%
6. Run%the%script%file.%%Correct%AVL%file%errors.%
7. If%the%error%says%there%must%be%more%than%one%section%for%a%surface%in%the%avl%file,%see%the%
following%instructions.%%This%error%means%that%XFLR5%did%not%export%a%section%correctly,%so%
the%user%will%need%to%type%it%in.%
a. In%XFLR5,%go%to%“Plane”->”Current%Plane”->”Edit…%(advanced%users)”%
b. By%going%through%the%drop-down%arrows,%the%sections%for%each%wing%surface%can%
be%found.%%Use%the%data%in%the%Sections%as%well%as%the%data%in%the%Position%to%write%
the%missing%section%in%the%AVL%file%(follow%the%format%used%for%the%other%sections%
in%the%exported%file,%and%look%at%part%(c)%for%assistance).%%In%the%AVL%file,%make%
sure%to%write%the%section%under%the%correct%surface%data.%
c. The%Section%format%is%as%follows%(the%quoted%portions%should%be%replaced%by%the%
numbers%described).%
#______________%
SECTION%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%|%%(keyword)%
%%%“x%position+offset”%%%%“span%position”%%%%“z%position”%%%“chord”%%%“Ainc”%%%“y-
panels”%%%%“Sspace”%%%|%Xle%Yle%Zle%%%Chord%Ainc%%%[%Nspan%Sspace%]%
8. After%these%corrections%have%been%implemented,%the%user%should%be%able%to%run%the%
MATLAB%script%successfully.%%Also,%using%AVL,%they%should%be%able%to%view%the%plane%
geometry.%
