Non-intrusive reduced order models for the accurate prediction of bifurcating phenomena in compressible fluid dynamics

12/20/2022
by   Niccolò Tonicello, et al.
0

The present works is focused on studying bifurcating solutions in compressible fluid dynamics. On one side, the physics of the problem is thoroughly investigated using high-fidelity simulations of the compressible Navier-Stokes equations discretised with the Discontinuous Galerkin method. On the other side, from a numerical modelling point of view, two different non-intrusive reduced order modelling techniques are employed to predict the overall behaviour of the bifurcation. Both approaches showed good agreement with full-order simulations even in proximity of the bifurcating points where the solution is particularly non-smooth.

READ FULL TEXT

Please sign up or login with your details

Forgot password? Click here to reset