We demonstrate that besides gaseous pockets also a gas supersaturated spot on a substrate can be a nucleus for cavitation. The supersaturation is achieved by either a formerly dissolved bubble or by heating locally the surface below the boiling temperature. The experiments are conducted in a thin film of water; one side of the water film is in contact with a gold coated substrate that is heated by a continuous laser through plasmonic heating. For nucleation of a bubble, the pressure at the heated spot is reduced by a transient rarefaction wave. The experimental findings suggest that the local gas supersaturation is responsible to nucleate cavitation and thus connects the phase transitions of cavitation and boiling. Additionally, the pressure waves in the liquid gap are studied numerically.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.128.194501 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Spontaneous Bubble Growth Inside High-Saturation-Vapor-Pressure and High-Air-Solubility Liquids and Emulsion Droplets.
Langmuir
January 2025
Department of Chemical and Pharmaceutical Engineering, Faculty of Chemistry and Pharmacy, Sofia University, 1 James Bourchier Avenue, Sofia 1164, Bulgaria.
Spontaneous bubble growths in liquids are usually triggered by rapid changes in pressure or temperature that can lead to liquid gas supersaturation. Here, we report alternative scenarios of the spontaneous growths of bubbles inside a high-saturation-vapor-pressure and high-air-solubility perfluorocarbon liquid (PP1) that were observed under ambient quiescent conditions. First, we investigate spontaneous bubble growth inside the single PP1 phase, which was left to evaporate freely.
View Article and Find Full Text PDFAn in-situ study in the Xijiang River basin revealed adverse effects of total dissolved gas supersaturation on fish.
Ecotoxicol Environ Saf
January 2025
State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China.
High dam discharge can lead to total dissolved gas (TDG) supersaturation in downstream rivers, causing fish to suffer from bubble trauma and even mortality. Focusing on the Datengxia hydropower station in the Xijiang River basin, we conducted in-situ experiments to explore the tolerance patterns of economic fish species, including Ctenopharyngodon idella, Hypophthalmichthys molitrix, and Cirrhinus molitorella, under the influence of TDG supersaturation at different compensation depths. Moreover, the development and recovery patterns of bubble trauma and the swimming ability of fish exposed to TDG supersaturated water were investigated.
View Article and Find Full Text PDFAnalogs of Precambrian microbial communities formed in Caucasian mineral water aquifers.
mBio
January 2025
Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow, Russia.
Article Synopsis
- * Researchers used metagenomic and cultivation-based methods to analyze the microbiomes and found stable microbial communities similar to those from critical early Earth periods, indicating a link between present-day microbes and historical biospheric evolution.
- * The Upper Jurassic aquifer, rich in CO and influenced by magmatic processes, hosts a unique ecosystem that may reflect early Earth conditions, contributing valuable insights into microbial evolution and the formation of the modern biosphere.
Gas bubble disease in captive Golden Trevally: Pathological insights and needs for life support system and water quality management.
J Aquat Anim Health
December 2024
Department of Microbiology and Immunology and Institute of Endemic Disease, Seoul National University College of Medicine, Seoul, Republic of Korea.
Article Synopsis
- The study investigates mass mortality in Golden Trevally at an aquarium, identifying gas bubble disease (GBD) as the cause and aiming to prevent future incidents.
- The researchers examined fish showing GBD symptoms and conducted necropsies, finding gas bubbles in various tissues.
- Results indicated that structural defects in the water system led to high total dissolved gas levels, emphasizing the need for monitoring and maintaining water quality to protect aquatic species.
Nitrogen gas-bubble disease in two giant salamanders.
Dis Aquat Organ
November 2024
The Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari, Ehime 794-0054, Japan.
Article Synopsis
- - Gas-bubble disease (GBD) is a non-infectious condition caused by high levels of dissolved gases in water, known to affect various aquatic species but not previously recorded in giant salamanders.
- - The study examined two mature Andrias spp. salamanders and found bubbles forming on their surfaces, alongside redness, and after three days, both salamanders and over 270 fish died due to the condition.
- - Both salamanders showed serious internal lesions, with congestion and gas bubbles affecting their organs and tissues, leading to a diagnosis of nitrogen GBD, emphasizing the need for regular aquarium maintenance to prevent similar occurrences.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!