Submitted for the DFD15 Meeting of The American Physical Society Proper Orthogonal Decomposition of Flow-Field in NonStationary Geometry VICTOR TROSHIN, School of Mechanical Engineering, faculty of Engineering, Tel Aviv University, AVRAHAM SEIFERT, TAU, DAVID SIDILKOVER, SOREQ NRC, GILEAD TADMOR, Northeastern — This work presents a proper orthogonal decomposition (POD) methodology for a flow fi...

The coherent structures and wake dynamics of a two-degree-of-freedom vibrating cylinder with low mass ratio at Re=5300 are investigated by means proper orthogonal decomposition (POD) numerical database generated using large-eddy simulations. Two different reduced velocities U*=3.0 U*=5.5, which correspond the initial super-upper branches, considered. This is first time that this kind analysis p...

Aneurysms are abnormal ballooning of a blood vessel. Previous studies have shown presence complex flow structures in aneurysms. The objective this study was to quantify the features observed two selected saccular aneurysm geometries over range inflow conditions using Proper Orthogonal Decomposition (POD). For purpose, rigid-wall models were used (i.e., bottleneck factor 1 and 1.6), varied peak ...

In this paper, a methodology based on proper orthogonal decomposition (POD) for computing approximate closed-loop optimal or robust control laws for finite-dimensional nonlinear systems is proposed. The solution can be obtained on any arbitrary domain of the state space represented by a multidimensional grid. The method only requires the computation of a limited number of well-conditioned two-p...

The application of proper orthogonal decomposition for incomplete (gappy) data for compressible external aerodynamic problems has been demonstrated successfully in this paper for the first time. Using this approach, it is possible to construct entire aerodynamic flowfields from the knowledge of computed aerodynamic flow data or measured flow data specified on the aerodynamic surface, thereby de...