Mottyll, Stephan ; Müller, Saskia ; Niederhofer, Philipp ; Hussong, Jeanette ; Huth, Stephan ; Skoda, Romuald (2014)
Analysis of the cavitating flow induced by an ultrasonic horn : Numerical 3D simulation for the analysis of vapour structures and the assessment of erosion-sensitive areas.
In: EPJ Web of Conferences, 67
doi: 10.1051/epjconf/20146702078
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
This paper reports the outcome of a numerical study of ultrasonic cavitation using a CFD flow algorithm based on a compressible density-based finite volume method with a low-Machnumber consistent flux function and an explicit time integration [15; 18] in combination with an erosion-detecting flow analysis procedure. The model is validated against erosion data of an ultrasonic horn for different gap widths between the horn tip and a counter sample which has been intensively investigated in previous material studies at the Ruhr University Bochum [23] as well as on first optical in-house flow measurement data which is presented in a companion paper [13]. Flow features such as subharmonic cavitation oscillation frequencies as well as constricted vapour cloud structures can also be observed by the vapour regions predicted in our simulation as well as by the detected collapse event field (collapse detector) [12]. With a statistical analysis of transient wall loads we can determine the erosion sensitive areas qualitatively. Our simulation method can reproduce the influence of the gap width on vapour structure and on location of cavitation erosion.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Mottyll, Stephan ; Müller, Saskia ; Niederhofer, Philipp ; Hussong, Jeanette ; Huth, Stephan ; Skoda, Romuald |
| Art des Eintrags: | Bibliographie |
| Titel: | Analysis of the cavitating flow induced by an ultrasonic horn : Numerical 3D simulation for the analysis of vapour structures and the assessment of erosion-sensitive areas |
| Sprache: | Englisch |
| Publikationsjahr: | 2014 |
| Verlag: | EDP Sciences |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | EPJ Web of Conferences |
| Jahrgang/Volume einer Zeitschrift: | 67 |
| DOI: | 10.1051/epjconf/20146702078 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | This paper reports the outcome of a numerical study of ultrasonic cavitation using a CFD flow algorithm based on a compressible density-based finite volume method with a low-Machnumber consistent flux function and an explicit time integration [15; 18] in combination with an erosion-detecting flow analysis procedure. The model is validated against erosion data of an ultrasonic horn for different gap widths between the horn tip and a counter sample which has been intensively investigated in previous material studies at the Ruhr University Bochum [23] as well as on first optical in-house flow measurement data which is presented in a companion paper [13]. Flow features such as subharmonic cavitation oscillation frequencies as well as constricted vapour cloud structures can also be observed by the vapour regions predicted in our simulation as well as by the detected collapse event field (collapse detector) [12]. With a statistical analysis of transient wall loads we can determine the erosion sensitive areas qualitatively. Our simulation method can reproduce the influence of the gap width on vapour structure and on location of cavitation erosion. |
| Zusätzliche Informationen: | EFM13 – Experimental Fluid Mechanics 2013 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Strömungslehre und Aerodynamik (SLA) |
| Hinterlegungsdatum: | 02 Jul 2024 23:06 |
| Letzte Änderung: | 02 Jul 2024 23:06 |
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Analysis of the cavitating flow induced by an ultrasonic horn : Numerical 3D simulation for the analysis of vapour structures and the assessment of erosion-sensitive areas. (deposited 30 Nov 2020 15:51)
- Analysis of the cavitating flow induced by an ultrasonic horn : Numerical 3D simulation for the analysis of vapour structures and the assessment of erosion-sensitive areas. (deposited 02 Jul 2024 23:06) [Gegenwärtig angezeigt]
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