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Kost, Friedrich (2008) PROBES IN TRANSONIC FLOW. In: XIX Biannual Symposium on Measuring Techniques in Turbomachinery, Transonic and Supersonic Flow in Cascades and Turbomachines, Rhode-St-Genèse, Belgium, April 7-8, 2008. XIX Biannual Symposium on Measuring Techniques in Turbomachinery, Transonic and Supersonic Flow in Cascades and Turbomachines, 2008-04-07 - 2008-04-08, Rhode-St-Genèse, Belgium.
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Abstract
A constraint exists for intrusive probes in transonic flow which leads to a complete insensitivity to static pressure at Mach number Ma=1. Nearby Mach number unity different types of probes are affected more or less by the reduced sensitivity to static pressure or Mach number. In this paper three types of probes are compared and it is shown that the reduced sensitivity near Ma=1 causes large errors when the flow Mach number is determined by a conventional probe. A closer look onto the pressure distribution of a blunt body reveals that only the front part of a probe is subject to the constraint while base pressure is not affected. Therefore a base pressure tapping was added to a conventional Cobra type probe. The new probe was calibrated in the Probe Calibration Facility of DLR Göttingen at a wide range of Mach numbers and at two Reynolds numbers.
| Item URL in elib: | https://elib.dlr.de/53903/ | ||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||
| Title: | PROBES IN TRANSONIC FLOW | ||||||||
| Authors: |
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| Date: | April 2008 | ||||||||
| Journal or Publication Title: | XIX Biannual Symposium on Measuring Techniques in Turbomachinery, Transonic and Supersonic Flow in Cascades and Turbomachines, Rhode-St-Genèse, Belgium, April 7-8, 2008 | ||||||||
| Refereed publication: | No | ||||||||
| Open Access: | Yes | ||||||||
| Gold Open Access: | No | ||||||||
| In SCOPUS: | No | ||||||||
| In ISI Web of Science: | No | ||||||||
| Editors: |
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| Status: | Published | ||||||||
| Keywords: | Measurement in Turbomachines, Transonic Flow, Probes | ||||||||
| Event Title: | XIX Biannual Symposium on Measuring Techniques in Turbomachinery, Transonic and Supersonic Flow in Cascades and Turbomachines | ||||||||
| Event Location: | Rhode-St-Genèse, Belgium | ||||||||
| Event Type: | Other | ||||||||
| Event Start Date: | 7 April 2008 | ||||||||
| Event End Date: | 8 April 2008 | ||||||||
| Organizer: | Von Karman Institute, Rhode-St-Genèse, Belgium | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Aeronautics | ||||||||
| HGF - Program Themes: | Propulsion Systems (old) | ||||||||
| DLR - Research area: | Aeronautics | ||||||||
| DLR - Program: | L ER - Engine Research | ||||||||
| DLR - Research theme (Project): | L - Turbine Technologies (old) | ||||||||
| Location: | Göttingen | ||||||||
| Institutes and Institutions: | Institute of Propulsion Technology > Turbine | ||||||||
| Deposited By: | Kost, Dr.rer.nat. Friedrich | ||||||||
| Deposited On: | 18 Apr 2008 | ||||||||
| Last Modified: | 24 Apr 2024 19:17 |
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