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Code_to_Code Comparison on Pre-Test Aerodynamic and Aeroacoustic Predictions

Visingardi, Antonio and Yin, Jianping and Voutsinas, Spyros G. (2004) Code_to_Code Comparison on Pre-Test Aerodynamic and Aeroacoustic Predictions. Project Report. Contract No. G4RD-CT-2002-00667 HELINOVI, 440 S.

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Abstract

Reduction of noise emissions from helicopters is a long term objective of the helicopter industry in view of extending the market to new civil applications, as well as getting prepared to comply with new and more stringent airport regulations. In this connection the helicopter industry has defined specific technical targets and research objectives. With reference to HeliNOVI two specific technical objectives have been defined: - the definition of a high quality experimental data base on a Mach scaled full helicopter configuration; - the adaptation and validation of reliable prediction tools, with reference to this new database. The present report refers to the second objective and deals with pre-test predictions using the codes available within the HeliNOVI consortium. The aim is • to give an overview of the results obtained during the pre-test computational activities; • to detect possible errors in the pre-test calculations; • to provide whenever possible a physical interpretation of the predictions; • to sketch some guidance for the following tasks. The pre-test prediction activity has been conceived in order to have an evaluation of the capabilities of the methodologies available within the consortium in predicting both the flow as well as the acoustic characteristics of a full helicopter configuration in different flight conditions. Furthermore, through code-to-code and code-to-measurements comparisons points for possible improvements can be identified in view of the subsequent prediction activities within HeliNOVI.

Item URL in elib:https://elib.dlr.de/20120/
Document Type:Monograph (Project Report)
Title:Code_to_Code Comparison on Pre-Test Aerodynamic and Aeroacoustic Predictions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Visingardi, Antonio( Centro Italiano di Richerche Aerospaziali (CIRA), Italy)UNSPECIFIED
Yin, JianpingUNSPECIFIEDUNSPECIFIED
Voutsinas, Spyros G.(National Technical University of Athens (NTUA), Greece)UNSPECIFIED
Date:July 2004
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:440
Series Name:Project Reports D1.1-3
Status:Published
Keywords:HeliNovi, Pre-test Prediction, Code-code comparison
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Quiet and Comfortable Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Yin, Dr.-Ing. Jianping
Deposited On:22 Dec 2005
Last Modified:27 Apr 2009 04:45

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