@prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . @prefix prodotto: . unitaDiPersonaleInterno:MATRICOLA40445 pubblicazioni:autoreCNRDi prodotto:ID256057 . @prefix prodottidellaricerca: . @prefix modulo: . modulo:ID8614 prodottidellaricerca:prodotto prodotto:ID256057 . unitaDiPersonaleInterno:MATRICOLA40504 pubblicazioni:autoreCNRDi prodotto:ID256057 . @prefix rdf: . @prefix retescientifica: . prodotto:ID256057 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1301 . @prefix rdfs: . prodotto:ID256057 rdfs:label "AIRCRAFT WAKE VORTEX DETECTION IN LARGE TOWING TANK (Contributo in atti di convegno)"@en . @prefix xsd: . prodotto:ID256057 pubblicazioni:anno "2003-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID256057 skos:altLabel "
F. De Gregorio, A. Ragni, F. Albano, F. Di Felice, F. La Gala (2003)
AIRCRAFT WAKE VORTEX DETECTION IN LARGE TOWING TANK
in TRIENNIAL INTERNATIONAL SYMPOSIUM ON FLUID CONTROL, MEASUREMENT AND VISUALIZATION, Sorrento, Settembre 2003
"^^rdf:HTML ; pubblicazioni:autori "F. De Gregorio, A. Ragni, F. Albano, F. Di Felice, F. La Gala"^^xsd:string ; pubblicazioni:titoloVolume "Proceeding of FLUCOME '03 : seventh triennial international symposium on fluid control, measurement and visualization"^^xsd:string ; pubblicazioni:pagineTotali "5"^^xsd:string ; pubblicazioni:numeroFascicolo "74"^^xsd:string ; skos:note "worldcat"^^xsd:string ; pubblicazioni:affiliazioni "CIRA (Italian Aerospace Research Centre), Via Maiorise, 81043 Capua (CE), Italy\nINSEAN (Italian Ship Model Basin) Via di Vallerano 139, Rome, Italy"^^xsd:string ; pubblicazioni:titolo "AIRCRAFT WAKE VORTEX DETECTION IN LARGE TOWING TANK"^^xsd:string ; pubblicazioni:isbn "0953399141"^^xsd:string ; pubblicazioni:autoriVolume "G M Carlomagno; Ian Grant"^^xsd:string ; prodottidellaricerca:abstract "The formation, motion and persistence of trailing vortices, shed by large commercial aircraft, is a relevant aspect to the safety and productivity of air traffic.\nAn aircraft encountering a wake vortex formation on its path may experience severe control problem as uncontrollable rolling moment or loss of height. Air traffic control separation\nregulations determine the minimum distance between aircraft on the same path both in cruise condition, both approaching airports in high lift condition. The ICAO separation distance procedure\nforesees four nautical miles between two heavy (> 136 tons) aircraft. Reducing the trailing vortex hazardous allows increasing safety and capacity of the airports.\nDuring the designing phase of new commercial aircraft different philosophies can be adopted, as developing low vortex wing or developing active or passive systems generating counter rotating\nvortex or turbulence, leading the wake vortex collapse. In all cases an accurate wake vortex investigation is necessary.\nNowadays aerodynamic wind tunnels provide accurate data of the wake vortex behavior up to near and extended near filed (8-10 wing spans) behind the aircraft model, using five hole probes arrays,\nHot Wire probes, LDV or PIV techniques. A valuable facility is the catapult wind tunnel allowing investigation up to 80 wing spans (mid field) using smoke visualisation, PlV technique and LIDAR system.\nThe mid/far field investigation is still obtained performing flight tests and measuring the released wake by ground station as LIDAR or ultrasound or density gradient technique. During the last two years in the framework of the European research project, named C-Wake, the wake vortex was also investigated in towing tank facilities, normally used for naval applications. These kind of facilities were used for wake vortex visualisation in the seventies but nowadays\nthanks to the availability of new measurement techniques, it is possible carrying out quantitative measurements.\nPlV measurements were performed at INSEAN large towing tank facility to investigate the wake vortex behavior up to 200-250 wing span behind the model corresponding to 6.2 - 7.5 nautical miles. I"@en . @prefix ns10: . prodotto:ID256057 pubblicazioni:editore ns10:ID14434 ; prodottidellaricerca:prodottoDi modulo:ID8614 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA40445 , unitaDiPersonaleInterno:MATRICOLA40504 . @prefix parolechiave: . prodotto:ID256057 parolechiave:insiemeDiParoleChiave . ns10:ID14434 pubblicazioni:editoreDi prodotto:ID256057 . parolechiave:insiemeDiParoleChiaveDi prodotto:ID256057 .