BibTeX
@INCOLLECTION{
Forth2002AOv,
author = "Shaun A. Forth and Trevor P. Evans",
title = "Aerofoil Optimisation via AD of a Multigrid Cell-Vertex {E}uler Flow Solver",
pages = "153--160",
abstract = "We report preliminary results in the use of ADIFOR 2.0 to determine aerodynamic
sensitivities of a 2-D airfoil with respect to geometrical variables. Meshes are produced with a
hyperbolic interpolation technique. The flow field is calculated using the cell-vertex method of
Hall, which incorporates local time-stepping, mesh sequencing and multigrid. We present results and
timings using both Finite Differences (FD) and Automatic Differentiation (AD). We investigate the
effect of starting the perturbed calculation for FD and the derivative calculation for AD from
either the current or freestream conditions and highlight the need for careful implementation of
convergence criteria. We attempt to make a comparative study of AD and FD gradients in an aerofoil
optimisation, using the DERA CODAS method from the perspective of DERA's eventual aim, 3D
viscous optimisation of wing-body configurations.",
ad_theotech = "Iteration",
ad_tools = "ADIFOR",
chapter = "17",
crossref = "Corliss2002ADo",
booktitle = "Automatic Differentiation of Algorithms: From Simulation to Optimization",
year = "2002",
editor = "George Corliss and Christ{\`e}le Faure and Andreas Griewank and Laurent
Hasco{\"e}t and Uwe Naumann",
series = "Computer and Information Science",
publisher = "Springer",
address = "New York, NY",
referred = "[Cappelaere2002OvH], [Haase2002OSo], [Klein2002DMf]",
ad_area = "Computational Fluid Dynamics"
}
|