elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Simplified model for flow-heating effect on wave drag and its validation

Schülein, Erich (2016) Simplified model for flow-heating effect on wave drag and its validation. AIAA Journal, 54 (3), pp. 1030-1039. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1./J054604 ISSN 0001-1452

[img] PDF
567kB

Official URL: http://arc.aiaa.org/doi/abs/10.2514/1.J054604

Abstract

A simplified prediction method for determination of flow-heating effects on the wave drag of bodies based on the combined analytical–empirical model of the thermal-spike phenomenon is presented. The existing model conceptions addressing certain aspects of this phenomenon were complemented and refined to develop a method suitable for parameter studies. Some reliable experimental and numerical results for the Mach 3 supersonic flow over conically nosed bodies were used as training data to estimate empirically the model parameters. Finally, the method was cross validated by the different available results for blunt bodies with hemispherical, flat, and conical front faces. By this opportunity, the ability to predict the influence of some crucial parameters has successfully been demonstrated for the heat input ratio at steady and periodic heating, the normalized heated-wake/filament diameter, the Mach number, and the specific heat capacity. Read More: http://arc.aiaa.org/doi/abs/10.2514/1.J054604

Item URL in elib:https://elib.dlr.de/102874/
Document Type:Article
Additional Information:March 2016, Publication Date (online): December 21, 2015
Title:Simplified model for flow-heating effect on wave drag and its validation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schülein, Ericherich.schuelein (at) dlr.deUNSPECIFIED
Date:2016
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:54
DOI :10.2514/1./J054604
Page Range:pp. 1030-1039
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0001-1452
Status:Published
Keywords:supersonic flow, energy deposition, wave-drag reduction, conical nose, hemispherical nose
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Bachmann, Barbara
Deposited On:12 May 2016 16:57
Last Modified:31 Jul 2019 20:00

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.