model reduction from a database created with xfoil
Hello community,
i have created a database with xfoil (2d airfoil panel code with an boundary solver).
The database is saved in this format:
% L lift
% D drag
% al angle of attack
% thick thickness of the airfoil
% camber camber of the airfoil
% Ma Mach number
% Re Reynolds number
L = db_L(al, thick, camber, Ma, Re);
D = db_D(al, thick, camber, Ma, Re);
The easiest way is a lookup-table, but i am looking for a more sophisticated approach like a POD (proper orthogonal decompositon) to identify e.g. how sensitive the thickness affect the lift.
if every input variable consist of 16 values, the database has 16^5 entries, and i could create Matrix of 1024 x1024 for the POD analysis.
but how could i compare the results of the modes with the data base? e.g. the deviation of the lift for a specific case.
PS: is there an application or something in Matlab which could help me?
best regards
emjayHello community,
i have created a database with xfoil (2d airfoil panel code with an boundary solver).
The database is saved in this format:
% L lift
% D drag
% al angle of attack
% thick thickness of the airfoil
% camber camber of the airfoil
% Ma Mach number
% Re Reynolds number
L = db_L(al, thick, camber, Ma, Re);
D = db_D(al, thick, camber, Ma, Re);
The easiest way is a lookup-table, but i am looking for a more sophisticated approach like a POD (proper orthogonal decompositon) to identify e.g. how sensitive the thickness affect the lift.
if every input variable consist of 16 values, the database has 16^5 entries, and i could create Matrix of 1024 x1024 for the POD analysis.
but how could i compare the results of the modes with the data base? e.g. the deviation of the lift for a specific case.
PS: is there an application or something in Matlab which could help me?
best regards
emjay Hello community,
i have created a database with xfoil (2d airfoil panel code with an boundary solver).
The database is saved in this format:
% L lift
% D drag
% al angle of attack
% thick thickness of the airfoil
% camber camber of the airfoil
% Ma Mach number
% Re Reynolds number
L = db_L(al, thick, camber, Ma, Re);
D = db_D(al, thick, camber, Ma, Re);
The easiest way is a lookup-table, but i am looking for a more sophisticated approach like a POD (proper orthogonal decompositon) to identify e.g. how sensitive the thickness affect the lift.
if every input variable consist of 16 values, the database has 16^5 entries, and i could create Matrix of 1024 x1024 for the POD analysis.
but how could i compare the results of the modes with the data base? e.g. the deviation of the lift for a specific case.
PS: is there an application or something in Matlab which could help me?
best regards
emjay pod MATLAB Answers — New Questions