The calculation of the derivatives of output quantities of aerodynamic flow codes, commonly
known as numerical sensitivity analysis, has recently become of increased importance for a …

A survey is conducted of CFD methods applied to the computation of high-lift multi-element
configurations over the last 10–15 years. Both 2-D and 3-D configurations are covered. The …

This article focuses on the formulation, validation and application of the continuous adjoint
method for turbulent flows in aero/hydrodynamic optimization. Though discrete adjoint has …

An automatic differentiation tool is used to develop the adjoint code for a three-dimensional
computational fluid dynamics solver. Rather than using automatic differentiation to …

An implicit algorithm for solving the discrete adjoint system based on an unstructured-grid
discretization of the Navier–Stokes equations is presented. The method is constructed such …

IN recent years a concerted effort has been made to bring higher fidelity, physics-based
computational fluid dynamics (CFD) simulations into the aircraft design process. Such tools …

IN the field of gradient-based aerodynamic design optimization, there are a number of
options available to obtain sensitivity information from computational fluid dynamics (CFD) …

The design of flexible structures undergoing aeroelastic deformations is a challenging task,
in particular if the prediction of the fluid loads and the evaluation of the aerodynamic …

An optimal shape design approach is presented for a subsonic S-shaped intake geometry
using aerodynamic sensitivity analysis. Sensitivity analysis is performed for the three …

In this paper, the exact discrete adjoint of an unstructured finite-volume formulation of the
Euler equations in two dimensions is derived and implemented. The adjoint equations are …