Bubble Dynamics Under Microgravity

Microgravity introduces unique challenges and opportunities for water electrolysis, as traditional buoyancy forces are absent. This research explores bubble behavior in such environments, with implications for space applications.

Motivation

Microgravity provides a unique environment where buoyancy forces are absent, allowing researchers to study bubble dynamics without the influence of this dominant force. This enables a deeper understanding of the intrinsic factors—such as surface tension, Marangoni convection, and shear forces—that govern bubble growth, detachment, and behavior. By isolating these effects, the research contributes to optimizing electrolysis systems for both Earth-based and space applications.

Goals

• Understand bubble growth and detachment in microgravity.
• Develop methods to mitigate bubble adhesion on electrodes.
• Enhance electrolysis systems for space exploration.

Techniques

Experiments were conducted during a parabolic flight campaign using a microfluidic setup with high-speed imaging and controlled flow rates to observe bubble behavior​

Results

Publications

1.Bashkatov, A. et al. Dynamics of single hydrogen bubbles at Pt microelectrodes in microgravity, Physical Chemistry Chemical Physics 23(20) 11818-11830, 2021
2.Ömer Akay et. al. Electrolysis in reduced gravitational environments: current research perspectives and future applications, npj Microgravity 8:56 (2022)