{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,3]],"date-time":"2024-09-03T18:20:37Z","timestamp":1725387637851},"reference-count":0,"publisher":"ASMEDC","content-domain":{"domain":["asmedigitalcollection.asme.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2002,1,1]]},"abstract":"<jats:p>Mixing in a special class of three-dimensional, non-inertial time-periodic flows is studied quantitatively. In the type of flow considered here, the cross-sectional velocity components are independent of the axial flow which is assumed to be fully developed. Using the eccentric helical annular mixer as a prototype, the time-periodic flow field is induced by adding a sinusoidal component to the rotation speed of the inner cylinder. For a given 3-D mixer geometry, the degree of mixing achieved is a function of two parameters that measure the strength of the cross-sectional stirring protocol relative to the mean residence time of the fluid in the mixer: the average number of turns of the outer cylinder, and the average number of modulation periods. We find that for a given mixer geometry and mean residence time, there is an optimum modulation frequency for which the standard deviation of the temperature field at the exit is a minimum.<\/jats:p>","DOI":"10.1115\/fedsm2002-31365","type":"proceedings-article","created":{"date-parts":[[2009,3,4]],"date-time":"2009-03-04T20:13:21Z","timestamp":1236197601000},"page":"1533-1538","update-policy":"http:\/\/dx.doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":0,"title":["Chaotic Mixing in Time-Periodic 3-D Flows"],"prefix":"10.1115","author":[{"given":"A. J. S.","family":"Rodrigo","sequence":"first","affiliation":[{"name":"FCT\/UNL, Caparica, Portugal"}]},{"given":"J. P. B.","family":"Mota","sequence":"additional","affiliation":[{"name":"FCT\/UNL, Caparica, Portugal"}]},{"given":"E.","family":"Saatdjian","sequence":"additional","affiliation":[{"name":"CNRS GDR, Vand\u0153uvre Cedex, France"}]}],"member":"33","published-online":{"date-parts":[[2009,2,24]]},"event":{"name":"ASME 2002 Joint U.S.-European Fluids Engineering Division Conference","start":{"date-parts":[[2002,7,14]]},"sponsor":["Fluids Engineering Division"],"location":"Montreal, Quebec, Canada","end":{"date-parts":[[2002,7,18]]},"acronym":"FEDSM2002"},"container-title":["Volume 1: Fora, Parts A and B"],"original-title":[],"link":[{"URL":"http:\/\/asmedigitalcollection.asme.org\/FEDSM\/proceedings-pdf\/doi\/10.1115\/FEDSM2002-31365\/4546860\/1533_1.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/asmedigitalcollection.asme.org\/FEDSM\/proceedings-pdf\/doi\/10.1115\/FEDSM2002-31365\/4546860\/1533_1.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,1,9]],"date-time":"2020-01-09T17:25:39Z","timestamp":1578590739000},"score":1,"resource":{"primary":{"URL":"https:\/\/asmedigitalcollection.asme.org\/FEDSM\/proceedings\/FEDSM2002\/36150\/1533\/298175"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,1,1]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1115\/fedsm2002-31365","relation":{},"subject":[],"published":{"date-parts":[[2002,1,1]]}}}