Published article about TurboCollector performance

By Niklas Hidman, Chalmers University of Technology

  • 2025-11-25
Published article about TurboCollector performance

How internal fins enhance the thermohydraulic performance of geothermal pipes: A direct numerical simulation study

Niklas Hidman
Division of Fluid Dynamics, Department of Mechanical and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden

Highlights
• Geothermal pipes with continuous internal fins are evaluated using DNS.
• Aim is to trigger unsteady flow at Re < 2300 and minimize pressure drop at Re > 2300.
• Performance of straight, helical and alternating helical fins assessed.
• Alternating helical fins most efficient at triggering unsteady flows at low Re.
• Number of fins, fin height and twist rate evaluated and promising design proposed.

Published article

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