000014011 001__ 14011
000014011 005__ 20161115094008.0
000014011 04107 $$aeng
000014011 046__ $$k2016-08-21
000014011 100__ $$aLimacher, Eric
000014011 24500 $$aRepresentation of real flows with dynamically equivalent concentrated point vortices

000014011 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014011 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014011 506__ $$arestricted
000014011 520__ $$2eng$$aUnsteady inviscid point vortex models predict vortex locations and circulations as functions of time. In order to adequately predict forces on plates undergoing unsteady maneuvers, we assert that such models ought to predict the centroids of leading-edge (LE) and trailing-edge (TE) vorticity distributions in real flows. For a surging, nominally two-dimensional plate, we have used particle image velocimetry (PIV) to calculate LE and TE vorticity centroids and circulations at early dimensionless times. These measurements are used as inputs to a force formulation for an existing point vortex model. The instantaneous forces calculated in this way exhibit the same trend as the direct force measurements, but underpredict the magnitude. Further work will be completed to identify the source of the discrepancy, such that existing unsteady point vortex convection models can be validated.

000014011 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014011 653__ $$a

000014011 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014011 720__ $$aLimacher, Eric
000014011 8560_ $$ffischerc@itam.cas.cz
000014011 8564_ $$s146615$$uhttps://invenio.itam.cas.cz/record/14011/files/PO.FM15-1.10.84.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 1564, code PO.FM15-1.10.84).
000014011 962__ $$r13812
000014011 980__ $$aPAPER