2 Works

Numerical Comparison of Two Runners for Gravitational Vortex Turbine

Alejandro RUIZ SÁNCHEZ, Angie GUEVARA MUÑOZ, Jorge Andrés SIERRA DEL RIO & Jose Alejandro POSADA MONTOYA
The main purpose of this study is to compare numerically the torque generated by two runners for a gravitational vortex turbine. One of the runners was an H-Darrieus turbine with the rotational flow into the chamber that helped to decrease its negative torque. The other runner was a standard (straight blade) turbine, which determined the performance in both cases. The study was conducted in ANSYSrCFX, where the model was configured at constant operating conditions in...

A Computational Analysis of Different Geometric Ratios at the Input of a Secondary Fluid that Affects the Efficiency of a Subsonic Air-Air Ejector

Jhon Fredy HINCAPIE-MONTOYA, Jorge Andres SIERRA-DEL-RIO, Edwar Andres TORRES-LOPEZ & Diego Andres HINCAPIE-ZULUAGA
For this study, the computational fluid dynamics (CFD) technique was used to investigate the combined effects of different geometric parameter relationships; inclination angle variation of the secondary fluid inlet, different lengths of the mixing chamber, and different separation values between the nozzle outlet and the input of the mixing chamber, in an air-air ejector used in a subsonic regime. As a working fluid, the air was used as an ideal gas and its viscosity was...

Registration Year

  • 2021
    2

Resource Types

  • Data Paper
    2

Affiliations

  • Pascual Bravo Institution University
    2
  • Instituto Tecnológico Metropolitano
    2
  • University of Antioquia
    1