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Shock waves in fluid-filled distensible tubes

Journal of Biomechanical Engineering

|February 1, 1980

Summary

This summary is machine-generated.

This study analyzes shock waves in distensible tubes, finding that flow separation significantly impacts shock velocity and pressure loss. These findings are crucial for understanding fluid dynamics in biological systems like the thoracic aorta.

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Area of Science:

Biophysics
Fluid Dynamics
Physiology

Background:

Liquid flow in distensible tubes is key in biological systems.
Shock waves exhibit unique properties in such environments, including pressure increases and area changes.

Purpose of the Study:

Analyze shock wave transition in distensible tubes.
Investigate the impact of flow separation on shock properties.
Model shock wave behavior in biological and artificial tubes.

Main Methods:

Developed two flow models: immediate flow separation and no separation.
Expressed shock properties using speed index and dissipation.
Applied models to canine thoracic aorta, perfectly elastic, and collapsed tubes.

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Main Results:

Shock waves cause increases in pressure and cross-sectional area.
Flow separation significantly alters shock velocity and dissipation.
Differences in shock properties are notable between flow separation models.

Conclusions:

Flow separation is a critical factor in shock wave dynamics within distensible tubes.
Understanding these dynamics is vital for biological fluid flow analysis.
The models provide insights into shock wave behavior in various elastic tube scenarios.