Objetivo The aim of this project is to produce a computer model capable of predicting the interactional aerodynamic effects between helicopter rotor blades and the fuselage.The general scope of the program was the improvement of methodologies and prediction methods for interactional aerodynamics, in order to provide benefits in the helicopter design phase.The computational methods available to predict isolated helicopter main rotor flow, isolated fuselage flow and rotor/fuselage interaction phenomena were discussed.The experimental activities to generate new data covered a wide spectrum to meet the needs of the code validation process. The tests included:isolated rotor (subscale) in hover and forward flight;fuselage alone;rotor/fuselage (subscale) in hover and forward flight;rotor/fuselage (subscale) in forward flight.Isolated and uncoupled rotor calculations were performed. The different methods used covered a wide range of theoretical approaches, from the simplest momentum theory to the boundary element method with a free wake rotor calculations. The correlations showed that at least a lifting line method with a vortex rotor wake is necessary to simulate correctly the velocity field above the rotor disk.Isolated and uncoupled fuselage calculations were performed using methods. Correlations with the experiment were satisfactory.The combined rotor/fuselage calculation methods typically use a lifting line representation for the rotor with a prescribed wake model and a steady panel method for the fuselage. The calculated results obtained show relatively good agreement with the experiment above the rotor disk for the mean and instantaneous velocities.A global rotorcraft model based on the boundary element method has been formulated and preliminary results have been presented. A panel method representation of the fuselage and of the thick blades isused along with a prescribed rotor wake model. The modelling tools developed in the project need to be improved in order to increase the range of configurations for which they provide reliable calculations.It will commence with a survey to identify and compare the computational methods currently available to European industry and research centres. Experimental campaigns will be carried out using 3 different wind-tunnel test facilities. The test matrix and the most significant measurements for each campaign will be specified, such as the measurements required for CFD purposes. The complete rotor/fuselage interactional aerodynamics problem will be outlined, from the computational point of view, by addressing some intermediate topics: firstly, the isolated rotor and fuselage analysis will be considered; secondly, the uncoupled rotor and fuselage case (the flowfield of the former analysis taking into account the presence of the latter, and vice versa); thirdly, the coupled rotor/fuselage case (combining rotor and fuselage flowfield calculations); and finally, global integrated models. For each topic, the following aspects will be covered: the methods and the algorithms to be assessed, using selected test cases from the updated experimental database; the improvements/enhancements needed for each method and algorithm; and the possible development of new computational models. The final report will provide a specification for the future development of an overall helicopter prediction methodology which will model the interactional aerodynamics effects on the performance of the aircraft. Ámbito científico natural sciencescomputer and information sciencesdatabasesnatural sciencescomputer and information sciencescomputational scienceengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftrotorcraftengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaeronautical engineering Programa(s) FP2-AERO 0C - Specific research and technological development programme (EEC) in the field of industrial manufacturing technologies and advanced materials applications (BRITE/EURAM) - Specific activities relating to aeronautics -, 1989-1992 Tema(s) Data not available Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador Agusta SpA Aportación de la UE Sin datos Dirección Via Giovanni Agusta 520 21017 Cascina Costa di Samarate Varese Italia Ver en el mapa Coste total Sin datos Participantes (12) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo Aérospatiale Société Nationale Industrielle SA Francia Aportación de la UE Sin datos Dirección 37 boulevard de Montmorency 75781 Paris Ver en el mapa Coste total Sin datos CENTRO ITALIANO RICERCHE AEROSPAZIALI SCPA Italia Aportación de la UE Sin datos Dirección Via Maiorise 81043 CAPUA Ver en el mapa Coste total Sin datos EUROCOPTER DEUTSCHLAND GMBH Alemania Aportación de la UE Sin datos Dirección INDUSTRIESTRASSE 4 DONAUWORTH Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos GERMAN AEROSPACE CENTRE Alemania Aportación de la UE Sin datos Dirección Linder Höhe 51147 KOELN Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos Institute of Computational Engineering Alfapi SA Grecia Aportación de la UE Sin datos Dirección 304,Messoghion 15500 Athens Ver en el mapa Coste total Sin datos LUDWIG-MAXIMILIANS UNIVERSITY OF MUNICH Alemania Aportación de la UE Sin datos Dirección Geschwister-Scholl-Platz 1 80539 MUENCHEN Ver en el mapa Coste total Sin datos Office National d'Études et de Recherches Aérospatiales (ONERA) Francia Aportación de la UE Sin datos Dirección 29 avenue de la Division Leclerc 92322 Châtillon Ver en el mapa Coste total Sin datos Stichting Nationaal Lucht- en Ruimtevaart Laboratorium Países Bajos Aportación de la UE Sin datos Dirección 8300 AD Emmeloord Ver en el mapa Coste total Sin datos TECHNICAL UNIVERSITY OF DENMARK Dinamarca Aportación de la UE Sin datos Dirección Anker Engelundsvej 1, Building 101 2800 LYNGBY Ver en el mapa Coste total Sin datos TECHNISCHE UNIVERSITAET BRAUNSCHWEIG Alemania Aportación de la UE Sin datos Dirección POCKELSSTRASSE 14 38106 BRAUNSCHWEIG Ver en el mapa Coste total Sin datos University of Bristol Reino Unido Aportación de la UE Sin datos Dirección Senate House Tyndall Avenue BS8 1TH Bristol Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos WESTLAND HELICOPTERS LTD. Reino Unido Aportación de la UE Sin datos Dirección Lysander Road YEOVIL, SOMERSET Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos
