Steinhausen, Christoph ; Gerber, Valerie ; Preusche, Andreas ; Weigand, Bernhard ; Dreizler, Andreas ; Lamanna, Grazia (2024)
On the potential and challenges of laser-induced thermal acoustics for experimental investigation of macroscopic fluid phenomena.
In: Experiments in Fluids : Experimental Methods and their Applications to Fluid Flow, 2021, 62 (1)
doi: 10.26083/tuprints-00023901
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
Mixing and evaporation processes play an important role in fluid injection and disintegration. Laser-induced thermal acoustics (LITA) also known as laser-induced grating spectroscopy (LIGS) is a promising four-wave mixing technique capable to acquire speed of sound and transport properties of fluids. Since the signal intensity scales with pressure, LITA is effective in high-pressure environments. By analysing the frequency of LITA signals using a direct Fourier analysis, speed of sound data can be directly determined using only geometrical parameters of the optical arrangement no equation of state or additional modelling is needed at this point. Furthermore, transport properties, like acoustic damping rate and thermal diffusivity, are acquired using an analytical expression for LITA signals with finite beam sizes. By combining both evaluations in one LITA signal, we can estimate mixing parameters, such as the mixture temperature and composition, using suitable models for speed of sound and the acquired transport properties. Finally, direct measurements of the acoustic damping rate can provide important insights on the physics of supercritical fluid behaviour.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Steinhausen, Christoph ; Gerber, Valerie ; Preusche, Andreas ; Weigand, Bernhard ; Dreizler, Andreas ; Lamanna, Grazia |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | On the potential and challenges of laser-induced thermal acoustics for experimental investigation of macroscopic fluid phenomena |
| Sprache: | Englisch |
| Publikationsjahr: | 23 April 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | Januar 2021 |
| Ort der Erstveröffentlichung: | Berlin ; Heidelberg |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Experiments in Fluids : Experimental Methods and their Applications to Fluid Flow |
| Jahrgang/Volume einer Zeitschrift: | 62 |
| (Heft-)Nummer: | 1 |
| Kollation: | 16 Seiten |
| DOI: | 10.26083/tuprints-00023901 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23901 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Mixing and evaporation processes play an important role in fluid injection and disintegration. Laser-induced thermal acoustics (LITA) also known as laser-induced grating spectroscopy (LIGS) is a promising four-wave mixing technique capable to acquire speed of sound and transport properties of fluids. Since the signal intensity scales with pressure, LITA is effective in high-pressure environments. By analysing the frequency of LITA signals using a direct Fourier analysis, speed of sound data can be directly determined using only geometrical parameters of the optical arrangement no equation of state or additional modelling is needed at this point. Furthermore, transport properties, like acoustic damping rate and thermal diffusivity, are acquired using an analytical expression for LITA signals with finite beam sizes. By combining both evaluations in one LITA signal, we can estimate mixing parameters, such as the mixture temperature and composition, using suitable models for speed of sound and the acquired transport properties. Finally, direct measurements of the acoustic damping rate can provide important insights on the physics of supercritical fluid behaviour. |
| Freie Schlagworte: | Engineering Fluid Dynamics, Fluid- and Aerodynamics, Engineering Thermodynamics, Heat and Mass Transfer |
| ID-Nummer: | Artikel-ID: 2 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-239011 |
| Zusätzliche Informationen: | Part of a collection: Applications of Laser and Imaging Technique to Fluid Mechanics. 20th International Symposium in Lisbon 2020 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Reaktive Strömungen und Messtechnik (RSM) |
| Hinterlegungsdatum: | 23 Apr 2024 12:55 |
| Letzte Änderung: | 24 Apr 2024 09:44 |
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| Suche nach Titel in: | TUfind oder in Google |
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- On the potential and challenges of laser-induced thermal acoustics for experimental investigation of macroscopic fluid phenomena. (deposited 23 Apr 2024 12:55) [Gegenwärtig angezeigt]
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