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

Schülein, Erich (2015) Simplified model for flow-heating effect on wave drag of blunt bodies and its validation. AIAA AVIATION 2015, 22. – 26. June 2015, Dallas, Texas, USA. DOI: 10.2514/6.2015-2778

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Official URL: https://www.arc.aiaa.org/doi/pdf/10.2514/6.2015-2778

Abstract

Simplified analytical method for determination of ow-heating effects on the wave drag of bodies based on the modeling of the thermal-spike phenomenon is presented. Some existing model conceptions addressing certain aspects of this phenomenon were complemented and refined to develop a method suitable for parameter studies. This method was adjusted using available results for the Mach 3 supersonic flow over conically nosed bodies, and then validated by experimental and numerical results for different blunt bodies with hemispherical, at and conical front faces. The ability to predict analytically 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.

Item URL in elib:https://elib.dlr.de/91325/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA-2015-2778
Title:Simplified model for flow-heating effect on wave drag of blunt bodies and its validation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schülein, Ericherich.schuelein (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:Yes
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2015-2778
Page Range:pp. 1-15
Series Name:Conference Proceedings online
Status:Published
Keywords:supersonic flow, energy deposition, wave-drag reduction, conical nose, hemispherical nose
Event Title:AIAA AVIATION 2015
Event Location:Dallas, Texas, USA
Event Type:international Conference
Event Dates:22. – 26. June 2015
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: Micknaus, Ilka
Deposited On:23 Jul 2015 14:16
Last Modified:23 Jul 2015 14:16

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