Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Nicolas R. Gauger"'
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642356797
In this paper, we present a discrete adjoint method for optimal flow control of unsteady incompressible viscous flows. The discrete adjoint solver is developed in an automatic fashion from the flow solver by applying the Automatic Differentiation tec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6cb288123d75cdc7c8d7e9f553fd37b
https://doi.org/10.1007/978-3-642-35680-3_53
https://doi.org/10.1007/978-3-642-35680-3_53
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783642300226
This paper deals with the task of generating a discrete adjoint solver from a given primal Unsteady Reynolds Averaged Navier-Stokes (URANS) solver for incompressible flows. This adjoint solver is to be employed in active flow control problems to enha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d702a8e78e2b88641c46d1ec123ae1e
https://doi.org/10.1007/978-3-642-30023-3_4
https://doi.org/10.1007/978-3-642-30023-3_4
Autor:
Nicolas R. Gauger, Emre Özkaya
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642142420
In this paper we consider the shape optimization of a transonic airfoil whose aerodynamic properties are calculated by a structured Euler solver. The optimization strategy is based on a one-shot technique in which pseudo time-steps of the primal and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cd4ee7de7caca5e7c17578a583fad55
https://doi.org/10.1007/978-3-642-14243-7_5
https://doi.org/10.1007/978-3-642-14243-7_5
Autor:
Nicolas R. Gauger, Antonio Fazzolari
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642040924
Multi-disciplinary analysis is necessary to reach physically meaningful optimum designs. For aero-structural shape optimization this means coupling two disciplines – aerodynamics and structural mechanics. In this paper the sensitivity evaluation fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3078e97b08d447f888d0c29f06627886
https://doi.org/10.1007/978-3-642-04093-1_17
https://doi.org/10.1007/978-3-642-04093-1_17
Autor:
Bernhard Eisfeld, Thomas Kaminski, Ralf Giering, Nicolas R. Gauger, Jochen Raddatz, Lars Reimer
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642040924
This chapter addresses the efficient computation of accurate sensitivity information in the aerodynamic design process. Mathematically, this sensitivity information is expressed by a derivative of a function that is defined via the numerical model of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03ec69a8ad26aa5ad9c40d0e62d0655c
https://doi.org/10.1007/978-3-642-04093-1_16
https://doi.org/10.1007/978-3-642-04093-1_16
Autor:
Nicolas R. Gauger
Publikováno v:
Optimization and Computational Fluid Dynamics ISBN: 9783540721529
Because detailed aerodynamic shape optimizations still suffer from high computational costs, efficient optimization strategies are required. Regarding the deterministic optimization methods, the adjoint approach is seen as a promising alternative to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a08608dd304b0b87f9d6cb2b56acd7ba
https://doi.org/10.1007/978-3-540-72153-6_5
https://doi.org/10.1007/978-3-540-72153-6_5
Publikováno v:
Modeling, Simulation and Optimization of Complex Processes ISBN: 9783540794080
HPSC
HPSC
The reverse mode of automatic differentiation allows the computation of gradients at a temporal complexity that is only a small multiple of the temporal complexity to evaluate the function itself. However, the memory requirement of the reverse mode i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f33947e3d826d03da1815b2911e7193f
https://doi.org/10.1007/978-3-540-79409-7_36
https://doi.org/10.1007/978-3-540-79409-7_36
Autor:
Nicolas R. Gauger, Joel Brezillon
Publikováno v:
MEGAFLOW-Numerical Flow Simulation for Aircraft Design ISBN: 9783540243830
Detailed numerical shape optimization will play a strategic role for future aircraft design. It offers the possibility of designing or improving aircraft components with respect to a pre-specified figure of merit subject to geometrical and physical c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c82a826b2d1c1649b89e2badea154fe
https://doi.org/10.1007/3-540-32382-1_13
https://doi.org/10.1007/3-540-32382-1_13