Naslov
Aerodynamic Shape Optimisation Based on Adjoint Surface Sensitivities

Autori
Lisjak, Nikola

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, diplomski

Fakultet
Fakultet strojarstva i brodogradnje

Mjesto
Zagreb

Datum
20.05

Godina
2016

Stranica
48

Mentor
Jasak, Hrvoje

Ključne riječi
gradient optimisation ; mesh motion ; continous adjoint ; lagrange multipliers ; shape optimisation ; fluid dynamics

Sažetak
In this thesis continuous adjoint equations are derived from corresponding flow equations for stationary incompressible turbulent flow with k-epsilon turbulence model and are presented in detail. Several commonly used objective functions are described along with boundary conditions corresponding to objective function for total pressure loss minimization. %adjoint boundary conditions An incompressible stationary flow simulation through two and three dimensionally bent pipe is conducted with k-epsilon turbulence model and ran with adjoint solver afterwards. Surface sensitivities are calculated, which served as an input for wall displacement and solved with automatic mesh motion solver based on Laplacian equation with finite element method. A comparison of primal flow quality is assessed for original and modified configuration.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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