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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
Abstract
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/ | |||||||||
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| Document Type: | Article | |||||||||
| Title: | Design of converging-diverging nozzles with constant-radius centerbody | |||||||||
| Authors: |
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| Date: | 15 November 2019 | |||||||||
| Journal or Publication Title: | CEAS Space Journal | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | Yes | |||||||||
| In ISI Web of Science: | Yes | |||||||||
| Volume: | 12 | |||||||||
| DOI : | 10.1007/s12567-019-00286-4 | |||||||||
| Page Range: | pp. 191-201 | |||||||||
| Editors: |
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| Publisher: | Springer | |||||||||
| ISSN: | 1868-2502 | |||||||||
| Status: | Published | |||||||||
| 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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