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Old   August 24, 2013, 06:58
Question Tornado VLM Matlab Error
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Durukan TAMKAN
Join Date: Aug 2013
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While i was searching, i found the Matlab Tornado codes that is very useful for Vortex Lattice Calculations. I am trying to run tornado studentbatch.m file but i took the related error:

??? Reference to non-existent field 'aftfuse'.

Error in ==> bodyplot at 6

Error in ==> studentbatch at 148

As a result i added "body.aftfuse= [ 0.5 0.5 0.5]; " to the studentbatch.m

then i get the following error :

??? Attempt to reference field of non-structure array.

Error in ==> iterateAlpha at 52

Error in ==> fTrimCLconstEW at 124
[state,results,lattice,ref]=iterateAlpha(engine,state,weight,qS,results,geo,l attice,ref,solvertype,max_iterations);

Error in ==> studentbatch at 175
[results,rudderangle,state,engine,converged]=fTrimCLconstEW(geo,state,trimaxis,trimwing,trimru dder,solvertype,engine,weight,results)

Thus ; i added "weight.gravity=[9.81];weight.unitvector=[0 0 -1]; and changed weight=100 as weight.ew=100; " in the studentbatch.m
Because of changing "weight" as "weight.ew"; I modified all "weight" as "weight.ew" in the fTrimCLconstEW[/B]

Then i faced with the following;

??? Input argument "CD" is undefined.

Error in ==> iterateAlpha at 53

Error in ==> fTrimCLconstEW at 124
[state,results,lattice,ref]=iterateAlpha(engine,state,weight,qS,results,geo,l attice,ref,solvertype,max_iterations);

Error in ==> studentbatch at 177
[results,rudderangle,state,engine,converged]=fTrimCLconstEW(geo,state,trimaxis,trimwing,trimru dder,solvertype,engine,weight,results)

Even i tried, i could not find what cd refers to. Because there are many cd values in the code and it seems like a matrix( because it's 3th component is used infTrimCLconstEW). Is there anyone to help me? I will be really appreciated. Thanks in advance...
The link of related code:
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error, matlab, tornado, vlm

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