Proposed method to estimate the liquid-vapor accommodation coefficient based on experimental sonoluminescence data

Area of Science:

• Acoustics
• Fluid Dynamics
• Thermodynamics

Background:

• Single-bubble sonoluminescence (SBSL) is a phenomenon where acoustic cavitation generates light.
• The dynamics of bubble collapse and rebound in SBSL are sensitive to interfacial transport properties.
• Understanding the liquid-vapor accommodation coefficient is crucial for accurate modeling of SBSL.

Purpose of the Study:

• To estimate the mass accommodation coefficient of water at room temperature.
• To utilize the temporal evolution of bubble radius in SBSL for property estimation.
• To provide a reliable range for the water accommodation coefficient.

Main Methods:

• Employing single-bubble sonoluminescence experiments.
• Analyzing the temporal evolution of bubble radius during collapse and rebound phases.
• Utilizing a robust parameter estimation strategy with data from two experimental techniques.

Main Results:

• The mass accommodation coefficient for water at room temperature was determined.
• The estimated coefficient falls within the confidence interval [0.217, 0.329].
• Bubble radius dynamics were shown to be a function of the accommodation coefficient.

Conclusions:

• The study successfully estimated the water mass accommodation coefficient using SBSL.
• The determined range provides valuable data for acoustic cavitation and fluid dynamics research.
• This method offers a viable approach for characterizing interfacial transport properties.