Archive for the 'Flow Control & Low Dimensional Analysis' Category

Protected: Some new results

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Global flow stability results for the flow around a sphere at Re = 300


Preliminary results, obtained with parallel, 3D global stability analysis for the flow around a sphere. The real part of one of the dominating eigenvectors is shown. Vx,Vy,Vz and averaged V values are depicted. Details of the procedure are described in Morzyński & Thiele, AIAA 2008-3865,  Finite Element Method for Global Stability Analysis of 3D Flows.


mode_0_a

mode_0_b

Stable zero frequency mode  Re=300

mode1_remode1_im

Eigenmode – Re and Im part, Re=300

mode2_im

mode2_re

Eigenmode – Re and Im part, Re=300

mode2_re_vxmode2_re_vymode2_re_vz

Eigenmode, Re=300, Vy, Vz and Vx component, respectively.

disturb_final-258

Stable, double-thread wake for Re=250  computed with unsteady solver.  Vx is depicted.

My CFD code MF3

cube

Further development of my CFD code (MF3) is targeting flow stability and control. The parallel unstructured FEM solver is science-oriented. It is penalty formulation based Navier-Stokes solver using quadratic tetrahedral elements.

export4

Click here (60MB!) for the film showing  details of the flow around a sphere.


New page – Udine CISM 2008 course Reduced-Order Modeling

Here you can find a link to a Udine CISM 2008 course Reduced-Order Modeling page – hopefully the forum for ROM community.