000004211 001__ 4211
000004211 005__ 20141118185749.0
000004211 04107 $$acze
000004211 046__ $$k2005-05-31
000004211 100__ $$aGilliam, Xiaoning
000004211 24500 $$aA Physical Interpretation of the Dominant POD Mode for Full-Scale Pressure Fields

000004211 24630 $$n10.$$pProceedings of the Tenth Americas Conference on Wind Engineering
000004211 260__ $$bAmerican Association for Wind Engineering, 2005
000004211 506__ $$arestricted
000004211 520__ $$2eng$$aIn this work, we describe the connection between the tributary area averaged pressure coefficient time-series and the time-series of the most dominant mode obtained from the proper orthogonal decomposition (POD) technique. This most influential POD mode (or eigenvector) is the weighted function associated with the largest variabilities of the pressure field obtained from the orthogonality procedure using the “hyperplane of best fit.” These largest variabilities may be caused by events such as near wall turbulence, coherent structures, or vortices of the pressure field. The tributary area averaged pressure coefficient time-series is computed using the area ratio of each pressure tap to the pressure field as a weighted function. As expected, the two time-series are highly correlated. The POD method yields a more concentrated energy for the pressure field, whereas the tributary area averaged method smears the concentrated energy through the entire pressure field. A comparison study was performed on the roof and wall of full-scale measurements collected at Texas Tech University Wind Engineering Research Field Laboratory (WERFL). In this study, various angles of attack (AOA) of the wind were also considered. 

000004211 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004211 653__ $$aproper orthogonal decomposition, low-rise, pressure fields, tributary area, wall, roof

000004211 7112_ $$aTenth Americas Conference on Wind Engineering$$cBaton Rouge, Louisiana (US)$$d2005-05-31 / 2005-06-04$$g10ACWE
000004211 720__ $$aGilliam, Xiaoning$$iSmith, Douglas
000004211 8560_ $$ffischerc@itam.cas.cz
000004211 8564_ $$s463469$$uhttps://invenio.itam.cas.cz/record/4211/files/035-Gilliam.pdf$$yOriginal version of the author's contribution as presented on CD, , paper No. 035.
000004211 962__ $$r4178
000004211 980__ $$aPAPER