Abstract An important part of numerical simulations in aerodynamics is the precise calculation of forces and moments, in particular, in external aerodynamics, the very precise calculation of the drag force. Since 2001, several so-called ”goal” mesh refinement methods have been developed to increase in a few steps the accuracy of the value of a function of interest, J (drag, lift...), with respect to its value compared to its value at the limit of very fine meshes. ONERA has proposed such a method based on the total derivative of the function of interest with respect to the nodes coordinates, X, dJ/dX (quantity resulting from the solution of a discrete adjoint equation).
Abstract An important part of numerical simulations in aerodynamics is the precise calculation of forces and moments, in particular, in external aerodynamics, the very precise calculation of the drag force. Since 2001, several so-called ”goal” mesh refinement methods have been developed to increase in a few steps the accuracy of the value of a function of interest, J (drag, lift...), with respect to its value compared to its value at the limit of very fine meshes. ONERA has proposed such a method based on the total derivative of the function of interest with respect to the nodes coordinates, X, dJ/dX (quantity resulting from the solution of a discrete adjoint equation).
GOAL-ORIENTED MESH ADAPTATION : ERROR ANALYSIS AND FIRST ATTEMPTS IN INDUSTRIAL ENVIRONMENT
STUFANO, GIUSEPPE
2020/2021
Abstract
Abstract An important part of numerical simulations in aerodynamics is the precise calculation of forces and moments, in particular, in external aerodynamics, the very precise calculation of the drag force. Since 2001, several so-called ”goal” mesh refinement methods have been developed to increase in a few steps the accuracy of the value of a function of interest, J (drag, lift...), with respect to its value compared to its value at the limit of very fine meshes. ONERA has proposed such a method based on the total derivative of the function of interest with respect to the nodes coordinates, X, dJ/dX (quantity resulting from the solution of a discrete adjoint equation).| File | Dimensione | Formato | |
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Descrizione: GOAL-ORIENTED MESH ADAPTATION : ERROR
ANALYSIS AND FIRST ATTEMPTS IN INDUSTRIAL
ENVIRONMENT
Dimensione
8.05 MB
Formato
Adobe PDF
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8.05 MB | Adobe PDF |
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https://hdl.handle.net/20.500.14253/67132