HUDU

EUROSHOCK - Drag Reduction by Passive Shock Control


€ 93,99
 
kartoniert
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Mai 2012

Beschreibung

Beschreibung

This volume contains the description of an EC-sponsered program to study all relevant aspects of shock/ boundary-layer interaction control, the latter designed to improve aircraft performance at design (cruise) and off-design conditions. The work being presented includes a discussion of basic control experiments and the corresponding physical modeling, to account for shock control and a discussion of the airfoil experiments conducted for code validation and control assessment, in conjunction with the basic experiments and computations. The contents is comprised of a section giving a broad overview of the research carried out here and more detailed individual contributions by the participants in the research. Der Band enthält den Abschlußbericht eines von EU geförderten Projekts EUROSHOCK, das alle relevanten Aspekte der Kontrolle von Stoßfronten und Grenzschichten (wichtig z.B. für die Verbesserung der Flugeigenschaften von Fluzeugen) untersuchte. Neben einer ausführlichen Diskussion der grundlegenden Kontrollexperimente und der zugrundeliegenden Modellierung werden auch die Versuche an Tragflächen beschrieben, die zur Validierung von Modellrechnungen durchgeführt werden. Darüber hinaus enthält der Band auch die detaillierten Ergebnisse der Teilnehmer an dem Forschungsprogramm.

Inhaltsverzeichnis

A. Synopsis of the Project EUROSHOCK.- 1 Introduction.- 2 Basic Experiments and Physical Modeling.- 2.1 Two-dimensional Shock Control.- 2.1.1 Test set-up for the basic experiments.- 2.1.2 The perforated plates.- 2.1.3 Effect of plate geometry on shock control effectiveness.- 2.1.4 Boundary layer development over the cavity region.- 2.1.5 Assessment of turbulence models and shock control laws.- 2.2 Three-dimensional Shock Control.- 2.2.1 Experimental arrangement and procedure.- 2.2.2 Analysis of experimental results.- 2.2.3 Numerical simulation of the interaction.- 2.3 Conclusion and Future Work.- 3 Extension of Numerical Methods and Preliminary Control Assessment.- 3.1 Basic Numerical Methods.- 3.2 Pre-computations without Control.- 3.2.1 Steady flow pre-computations for the airfoil DA LVA-1A.- 3.2.2 Unsteady flow pre-computations.- 3.3 Extension of the Numerical Codes to Shock Control.- 3.4 Computational Results for Airfoil Flow with Control.- 3.4.1 Airfoil DRA 2303 - steady flow conditions.- 3.4.2 Airfoil DRA 2303 - unsteady flow conditions.- 3.4.3 Airfoil DA LVA-1A with and without control.- 3.4.4 Airfoil VA-2 with passive and active control.- 3.5 Conclusion and Future Work.- 4 Airfoil Tests with and without Control.- 4.1 Experimental Program.- 4.2 Experiments with the Airfoil DA LVA-1A.- 4.2.1 Airfoil characteristics and wind tunnel model.- 4.2.2 Wind tunnel characteristics.- 4.2.3 Discussion of T2 results.- 4.2.4 Discussion of KRG results.- 4.3 Experiments with the Airfoil DRA 2303.- 4.3.1 Airfoil characteristics and wind tunnel model.- 4.3.2 Wind tunnel characteristics.- 4.3.3 Discussion of steady results.- 4.3.4 Control effect on buffet.- 4.4 Experiments with the Airfoil VA-2.- 4.4.1 Airfoil characteristics and wind tunnel model.- 4.4.2 Wind tunnel characteristics.- 4.4.3 Comparison of present and earlier results.- 4.4.4 Effect of passive and active control.- 4.5 Conclusion and Future Work.- 5 Assessment of Shock Control - A Summary.- 6 Overall Conclusion and


Portrait

Die Herausgeber entstammen den am Forschungsprojekt beteiligten Institutionen.

Dr. Egon Stanewsky und Dr. Wolfgang Geißler forschen am DLR in Göttingen.

Professor Jean Delery am ONERA in Chatillon (Frankreich).

Dr. John Fulker am DRA in Bedford (England).
EAN: 9783322907134
ISBN: 3322907139
Untertitel: Results of the Project EUROSHOCK, AER2-CT92-0049 Supported by the European Union, 1993 - 1995. 'Notes on Numerical Fluid Mechanics'. Softcover reprint of the original 1st ed. 1997. Book. Sprache: Englisch.
Verlag: Vieweg+Teubner Verlag
Erscheinungsdatum: Mai 2012
Seitenanzahl: 436 Seiten
Format: kartoniert
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