The spread of breathing air from wind instruments and singers using schlieren techniques
- The spread of breathing air when playing wind instruments and singing was investigated and visualized using two methods: (1) schlieren imaging with a schlieren mirror and (2) background-oriented schlieren (BOS). These methods visualize airflow by visualizing density gradients in transparent media. The playing of professional woodwind and brass instrument players, as well as professional classicalThe spread of breathing air when playing wind instruments and singing was investigated and visualized using two methods: (1) schlieren imaging with a schlieren mirror and (2) background-oriented schlieren (BOS). These methods visualize airflow by visualizing density gradients in transparent media. The playing of professional woodwind and brass instrument players, as well as professional classical trained singers were investigated to estimate the spread distances of the breathing air. For a better comparison and consistent measurement series, a single high note, a single low note, and an extract of a musical piece were investigated. Additionally, anemometry was used to determine the velocity of the spreading breathing air and the extent to which it was quantifiable. The results showed that the ejected airflow from the examined instruments and singers did not exceed a spreading range of 1.2 m into the room. However, differences in the various instruments have to be considered to assess properly the spread of the breathing air. The findings discussed below help to estimate the risk of cross-infection for wind instrument players and singers and to develop efficacious safety precautions, which is essential during critical health periods such as the current COVID-19 pandemic.…
Document Type: | Article |
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Author: | Lia BecherORCiD, Amayu Wakoya GenaORCiD, Dr.-Ing. Hayder AlsaadORCiDGND, Bernhard Richter, Claudia Spahn, Prof. Dr.-Ing. Conrad VölkerORCiDGND |
DOI (Cite-Link): | https://doi.org/10.1111/ina.12869Cite-Link |
URN (Cite-Link): | https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20220209-45817Cite-Link |
URL: | https://onlinelibrary.wiley.com/doi/full/10.1111/ina.12869 |
Parent Title (English): | Indoor Air |
Publisher: | Wiley Blackwell |
Place of publication: | Oxford |
Language: | English |
Date of Publication (online): | 2022/02/07 |
Date of first Publication: | 2021/06/14 |
Release Date: | 2022/02/09 |
Publishing Institution: | Bauhaus-Universität Weimar |
Institutes and partner institutions: | Fakultät Bauingenieurwesen / Professur Bauphysik |
Volume: | 2021 |
Issue: | volume 31, issue 6 |
Pagenumber: | 17 |
First Page: | 1798 |
Last Page: | 1814 |
Tag: | airborne infection; background-oriented schlieren; schlieren imaging |
GND Keyword: | Covid-19; Pandemie; Blasinstrument; Gesang; Schlierenmethode |
Dewey Decimal Classification: | 500 Naturwissenschaften und Mathematik / 530 Physik |
BKL-Classification: | 56 Bauwesen / 56.55 Bauphysik, Bautenschutz |
Licence (German): | Creative Commons 4.0 - Namensnennung-Nicht kommerziell (CC BY-NC 4.0) |