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Modified Kantrowitz Starting Criteria for Mixed Compression Supersonic Intakes

Flock, Andreas K. and Gülhan, Ali (2019) Modified Kantrowitz Starting Criteria for Mixed Compression Supersonic Intakes. AIAA Journal. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.J057283 ISSN 0001-1452

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Abstract

A proper understanding of the intake starting process of supersonic airbreathing engines is crucial for a successful operation of the supersonic aircraft, especially for three-dimensional geometries in which no reliable starting prediction for a broad Mach number range exists, and the widespread Kantrowitz criterion only provides a conservative prediction. Experimental investigations from the literature are reviewed and put into the perspective of the Kantrowitz theory. First, an empirical relation is developed that is valid for a wide Mach number range, and that can be calibrated to certain classes of intakes by the user. Second, the Kantrowitz assumptions are modified and a semiempirical relation is derived. The semiempirical relation turned out to be an optimistic limit for self-starting.

Item URL in elib:https://elib.dlr.de/126470/
Document Type:Article
Title:Modified Kantrowitz Starting Criteria for Mixed Compression Supersonic Intakes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Flock, Andreas K.andreas.flock (at) dlr.dehttps://orcid.org/0000-0002-0507-2420
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Date:2019
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
DOI :10.2514/1.J057283
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0001-1452
Status:Published
Keywords:Scramjet, Intake Starting, Intake Unstart, Diffusor
HGF - Research field:Energy
HGF - Program:other
HGF - Program Themes:E - no assignment
DLR - Research area:Energy
DLR - Program:E - no assignment
DLR - Research theme (Project):E - no assignment
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Flock, Andreas
Deposited On:13 Feb 2019 09:25
Last Modified:07 Jun 2019 12:08

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