Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
This study aimed to improve and investigate the oscillation dynamics and levitation stability of acoustically levitated water droplets. Contactless sample manipulation technology in mid-air has attracted significant attention in the fields of biochemistry and pharmaceutical science. Although one pro...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/9/1373 |
| _version_ | 1797484753412161536 |
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| author | Koji Hasegawa Manami Murata |
| author_facet | Koji Hasegawa Manami Murata |
| author_sort | Koji Hasegawa |
| collection | DOAJ |
| description | This study aimed to improve and investigate the oscillation dynamics and levitation stability of acoustically levitated water droplets. Contactless sample manipulation technology in mid-air has attracted significant attention in the fields of biochemistry and pharmaceutical science. Although one promising method is acoustic levitation, most studies have focused on a single sample. Therefore, it is important to determine the stability of multiple samples during acoustic levitation. Here, we aim to understand the effect of multiple-sample levitation on levitation stability in acoustic fields. We visualized the oscillatory motion of multiple levitated droplets using a high-speed video camera. To characterize the dynamics of multiple levitating droplets, the oscillation frequency and restoring force coefficients of the levitated samples, which were obtained from the experimental data, were analyzed to quantify the droplet–droplet interaction. The oscillation model of the spring-mass system was compared with the experimental results, and we found that the number of levitating droplets and their position played an important role in the levitation stability of the droplets. Our insights could help us understand the oscillatory behavior of levitated droplets to achieve more stable levitation. |
| first_indexed | 2024-03-09T23:08:59Z |
| format | Article |
| id | doaj.art-96de20db5e6c499da5b09dd8e0465611 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T23:08:59Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-96de20db5e6c499da5b09dd8e04656112023-11-23T17:48:27ZengMDPI AGMicromachines2072-666X2022-08-01139137310.3390/mi13091373Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic FieldKoji Hasegawa0Manami Murata1Department of Mechanical Engineering, Kogakuin University, Tokyo 163-8677, JapanGraduate School of Engineering, Kogakuin University, Tokyo 163-8677, JapanThis study aimed to improve and investigate the oscillation dynamics and levitation stability of acoustically levitated water droplets. Contactless sample manipulation technology in mid-air has attracted significant attention in the fields of biochemistry and pharmaceutical science. Although one promising method is acoustic levitation, most studies have focused on a single sample. Therefore, it is important to determine the stability of multiple samples during acoustic levitation. Here, we aim to understand the effect of multiple-sample levitation on levitation stability in acoustic fields. We visualized the oscillatory motion of multiple levitated droplets using a high-speed video camera. To characterize the dynamics of multiple levitating droplets, the oscillation frequency and restoring force coefficients of the levitated samples, which were obtained from the experimental data, were analyzed to quantify the droplet–droplet interaction. The oscillation model of the spring-mass system was compared with the experimental results, and we found that the number of levitating droplets and their position played an important role in the levitation stability of the droplets. Our insights could help us understand the oscillatory behavior of levitated droplets to achieve more stable levitation.https://www.mdpi.com/2072-666X/13/9/1373acoustic levitationdropletoscillationlevitation stabilitydroplet–droplet interaction |
| spellingShingle | Koji Hasegawa Manami Murata Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field Micromachines acoustic levitation droplet oscillation levitation stability droplet–droplet interaction |
| title | Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field |
| title_full | Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field |
| title_fullStr | Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field |
| title_full_unstemmed | Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field |
| title_short | Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field |
| title_sort | oscillation dynamics of multiple water droplets levitated in an acoustic field |
| topic | acoustic levitation droplet oscillation levitation stability droplet–droplet interaction |
| url | https://www.mdpi.com/2072-666X/13/9/1373 |
| work_keys_str_mv | AT kojihasegawa oscillationdynamicsofmultiplewaterdropletslevitatedinanacousticfield AT manamimurata oscillationdynamicsofmultiplewaterdropletslevitatedinanacousticfield |