Wang, Qin ; Heß, Michael ; Matyschok, Berthold ; Pelz, Peter F. (2022)
Simulation of the Flow and Acoustic Field of a Fan.
Conference on Modelling Fluid Flow (CMFF'09) and The 14th International Conference on Fluid Flow Technologies. Budapest, Hungary (09.09.2009-12.09.2009)
doi: 10.26083/tuprints-00021185
Konferenzveröffentlichung, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The focus of the present work is the steady and unsteady numerical simulation of flow field and flow-induced acoustic field of a fan using a hybrid approach. The steady simulation of the flow field is carried out with a realizable k-epsilon turbulence model. In a second step the result are used for the evaluation of the acoustic sources, which are used as input data of the Broadband Noise Model. From this computational acoustics (CA) we get a qualitative map of acoustic power level in the entire computational domain. From steady flow fields with different mass flows as inlet boundary condition the characteristic curve of the fan (pressure vs. mass flow) is evaluated.
In the unsteady simulation, the acoustic noise propagation is computed using the Ffowcs Williams and Hawkings (FW-H) analogy. The source term in the acoustic propagation equation is achieved from the CFD result. With this unsteady simulation the transient acoustic power level in every location can be calculated, which enables a FFT-analysis of the acoustic field.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Wang, Qin ; Heß, Michael ; Matyschok, Berthold ; Pelz, Peter F. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Simulation of the Flow and Acoustic Field of a Fan |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2009 |
| Kollation: | 6 Seiten |
| Veranstaltungstitel: | Conference on Modelling Fluid Flow (CMFF'09) and The 14th International Conference on Fluid Flow Technologies |
| Veranstaltungsort: | Budapest, Hungary |
| Veranstaltungsdatum: | 09.09.2009-12.09.2009 |
| DOI: | 10.26083/tuprints-00021185 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/21185 |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | The focus of the present work is the steady and unsteady numerical simulation of flow field and flow-induced acoustic field of a fan using a hybrid approach. The steady simulation of the flow field is carried out with a realizable k-epsilon turbulence model. In a second step the result are used for the evaluation of the acoustic sources, which are used as input data of the Broadband Noise Model. From this computational acoustics (CA) we get a qualitative map of acoustic power level in the entire computational domain. From steady flow fields with different mass flows as inlet boundary condition the characteristic curve of the fan (pressure vs. mass flow) is evaluated. In the unsteady simulation, the acoustic noise propagation is computed using the Ffowcs Williams and Hawkings (FW-H) analogy. The source term in the acoustic propagation equation is achieved from the CFD result. With this unsteady simulation the transient acoustic power level in every location can be calculated, which enables a FFT-analysis of the acoustic field. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-211858 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006) |
| Hinterlegungsdatum: | 09 Mai 2022 11:28 |
| Letzte Änderung: | 10 Mai 2022 05:22 |
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