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.

翻译：目前的工作重点是研究压缩流体动态的双向解决方案。一方面,对问题的物理进行彻底调查,采用与不连续的Galerkin方法分离的压缩纳维尔-斯托克方程式的高度忠诚模拟。另一方面,从数字建模角度,采用了两种不同的非侵入性减少顺序建模技术来预测两侧的整体行为。两种方法都表明与全序模拟有着良好的一致,甚至接近于两侧点,即解决办法特别非悬浮。