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Design of converging-diverging nozzles with constant-radius centerbody

Flock, Andreas K. and Gülhan, Ali (2019) Design of converging-diverging nozzles with constant-radius centerbody. CEAS Space Journal, 12, pp. 191-201. Springer. doi: 10.1007/s12567-019-00286-4. ISSN 1868-2502.

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Official URL: https://doi.org/10.1007/s12567-019-00286-4


Several flow phenomena, such as recirculating wake flows or noise generation, occur in aerodynamic configurations with backward facing steps. In this context, subsonic nozzles with constant-radius centerbodies exist, which enable fundamental research of these phenomena for M < 1. For the supersonic regime, however, the existing database and knowledge are limited. Therefore, this work presents a design approach for a converging-diverging nozzle with constant-radius centerbody. For the nozzle throat, Sauer’s method is modified to include a centerbody. The method of characteristics is used for the subsequent supersonic portion. Comparing the analytical calculations to numerical simulations results in very good agreement and therefore underlines the feasibility of the chosen approach. Viscosity reduced the Mach number on the exit plane by 1.0–1.2% and therefore had little influence.

Item URL in elib:https://elib.dlr.de/131886/
Document Type:Article
Title:Design of converging-diverging nozzles with constant-radius centerbody
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Flock, Andreas K.andreas.flock (at) dlr.dehttps://orcid.org/0000-0002-0507-2420
Gülhan, AliAli.Guelhan (at) dlr.dehttps://orcid.org/0000-0003-4905-5881
Date:15 November 2019
Journal or Publication Title:CEAS Space Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s12567-019-00286-4
Page Range:pp. 191-201
EditorsEmailEditor's ORCID iD
Keywords:Wind tunnels, Method of Characteristics, Supersonic
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:10 Dec 2019 07:24
Last Modified:05 Nov 2020 10:55

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