{"refrec":{"BRefID":85280,"RR":"<b>Demeulenaere, A.</b> (1994). Krachten op een kubus geplaatst in een turbulente stroming. Ir Thesis. Universiteit Gent. Afdeling Weg- & Waterbouwkunde: Gent.  Vol. 1 (94 p.); Vol. 2 (bijlagen) pp.","BEntID":80782,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". Ir Thesis. Universiteit Gent. Afdeling Weg- & Waterbouwkunde: Gent.  Vol. 1 (94 p.); Vol. 2 (bijlagen) pp.","DocTypID":5,"DocType":"Book/Monograph","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Demeulenaere, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Demeulenaere, A.","Englishabstract":null,"AbstractOtherLang":"Een kubus die in een turbulente stroming geplaatst wordt, verstoort de stroomlijnen en veroorzaakt een complex systeem van neren en vortexen Hierdoor ontstaan op de vlakken van de kubus zones van hoge of lage druk, welke resulteren in een langskracht en eventueel een dwarskracht en een moment. Deze componenten worden dimensieloos weergegeven onder de vorm van een sleepcoëfficiënt C<sub>D</sub>, een dwarskrachtcoëfficiënt C<sub>V</sub> en een momentscoëfficiënt C<sub>M</sub>. Ze zijn allen afhankelijk van de oriëntatie van de kubus, het Reynoldsgetal en de turbulentie-intensiteit. <br><br> De coëfficiënten die bekomen zijn uit meetresultaten worden vergeleken met de waarden uit de literatuur. De grootte van C<sub>D</sub> verschilt 5 à 15 % al naargelang hij bekomen is uit proeven bij constante snelheid of bij versnelling. Versnelling levert systematisch lagere waarden. Aangezien C<sub>V</sub> bij de drie basisoriëntaties van de kubus, ongeveer nul is, is de dwarskracht bij benadering nul. 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