{"title":"Measurements on the Isl Rotor Model","authors":"P. Gnemmi, J. Haertig, C. Johe, F. Albe","doi":"10.1109/ICIASF.1993.687647","DOIUrl":null,"url":null,"abstract":"The French-German Research Institcite of Saint Louis (ISL) carries out researches i n aerodynaintcs and acoustics to predict the thickness and loading noise of helicopter rotors ISL has added experiinental studios to the theoretirat ones in order to compare theoretical aspects with iiieasureinents Then a model of a rotor ha5 been built. siniulattng the hovering flight, able to reach transonic speed a1 the blade tips This equipment allows to carry out force ineasurenienls on the rotor head and in the Matics ancl the driving toique A shadowgraph arrangement is tised lo v isua l i7~ the rotor model wake Around the rotor model wr also make acoustic nieasurenients in the blades plane l ip to a distance of one rotor diaineler lo validate the thickness noise calculation of a rotor in hover flight When we compare ralculattons with measureinents. we find thal the thickness i iotsr ir, wall predicted by ROTAC up to a t i p Mach iicimher of 0 86","PeriodicalId":398832,"journal":{"name":"International Congress on Instrumentation in Aerospace Simulation Facilities,","volume":"119 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Congress on Instrumentation in Aerospace Simulation Facilities,","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIASF.1993.687647","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
The French-German Research Institcite of Saint Louis (ISL) carries out researches i n aerodynaintcs and acoustics to predict the thickness and loading noise of helicopter rotors ISL has added experiinental studios to the theoretirat ones in order to compare theoretical aspects with iiieasureinents Then a model of a rotor ha5 been built. siniulattng the hovering flight, able to reach transonic speed a1 the blade tips This equipment allows to carry out force ineasurenienls on the rotor head and in the Matics ancl the driving toique A shadowgraph arrangement is tised lo v isua l i7~ the rotor model wake Around the rotor model wr also make acoustic nieasurenients in the blades plane l ip to a distance of one rotor diaineler lo validate the thickness noise calculation of a rotor in hover flight When we compare ralculattons with measureinents. we find thal the thickness i iotsr ir, wall predicted by ROTAC up to a t i p Mach iicimher of 0 86
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