Novel Expression-Template-Based Automatic Differentiation of Fortran Codes for Aerodynamic Optimization

What is it about?

A novel approach for automatic differentiation (AD) of the Fortran codes based on the operator overloading technique is developed in this work. This AD tool utilizes an expression-template-based technique -- the first of its kind implementation in Fortran -- that can enable computationally- and memory-efficient gradient calculations in the framework of the discrete adjoint approach. The developed toolbox is coupled with an in-house CFD solver for aerodynamic design optimization of airfoil and wing geometries.

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