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February 8, 2026Sci0 citationsOpen Access

Nazca-Inspired Spiral Geometry for Gravitational Vortex Turbine Efficiency

From Ancient Aqueducts to Modern Turbines: Exploring the Impact of Nazca-Inspired Spiral Geometry on Gravitational Vortex Turbine Efficiency

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Authors

JGJuliana Carvajal GuerraNHNatalia HerreraECE. Chica

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Overview

Experiments explore Nazca-inspired inlet design to improve vortex turbines, suggesting unique geometric benefits.

Key Points

  • The research aims to enhance the efficiency and stability of gravitational vortex turbines using Nazca-inspired inlet designs.
  • Developed a parametric inlet design based on Nazca puquios for GVTs.
  • Utilized computational fluid dynamics (CFD) and response surface methodology (RSM) for optimization.
  • Conducted a full factorial design analysis to determine optimal inlet configuration.
  • Evaluated efficiencies of two different turbine runner designs in laboratory experiments.
  • Optimal inlet configuration (N=4, θ=13°) achieved a vortex circulation of Γ=1.3459 m²/s.
  • Twisted blades yielded a predicted efficiency of 15.37% while curved blades achieved 17.07% in simulations.
  • Experimental efficiencies were lower, at 8.70% for twisted and 11.61% for curved blades, indicating reduced hydraulic effectiveness.

Cite This Study

Guerra et al. (2026) studied this question.

synapsesocial.com/papers/698828850fc35cd7a884821ehttps://doi.org/10.3390/sci8020034
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