Investigation of dynamic streaming potential by dimensional analysis

Area of Science:

• Physics
• Materials Science
• Physical Chemistry

Background:

• Streaming potential is crucial for understanding material interface properties and developing electrokinetic devices.
• Existing theories provide a foundation, but dynamic behavior in porous media requires further investigation.

Purpose of the Study:

• To investigate dynamic streaming potential in porous media using dimensional analysis.
• To establish relationships between streaming potential and fundamental mechanical quantities.

Main Methods:

• Dimensional analysis was employed to study the dynamic streaming potential.
• Theoretical framework was developed to link streaming potential with mechanical parameters.

Main Results:

• Established relationships between streaming potential and pressure gradient, capillary acceleration, and viscous friction.
• Derived formulas for streaming potential in dynamic conditions.
• Demonstrated that the streaming potential-viscous friction relationship is independent of oscillation frequency and pore size.

Conclusions:

• Dimensional analysis offers a robust method for studying dynamic streaming potential.
• The derived relationships enhance the understanding of electrokinetic phenomena in porous materials.
• The findings are applicable to the design of advanced electrokinetic transducers and measurement apparatus.