The Design – Design Analysis for Gorlov Helical Turbine | ANSYS CFX
The Gorlov helical turbine (GHT) is a water turbine evolved from the Darrieus turbine design by altering it to have helical blades/foils. It was patented in a series of patents from September 19, 1995, to July 3, 2001, and won 2001 ASME Thomas A. Edison. GHT was invented by Alexander M. Gorlov, professor of Northeastern University.
The physical principles of the GHT work are the same as for its main prototype, the Darrieus turbine, and for the family of similar vertical axis wind turbines which includes also Turby wind turbine, aerostructure turbine, Quietrevolution wind turbine, etc. GHT, Turby, and Quietrevolution solved pulsatory torque issues by using the helical twist of the blades.
The helical turbine (Germany patent DE2948060A1, 1979) was originally invented by Ulrich Stampa (Bremen, Germany), engineer, author, and inventor.
In this analysis, it has been tried to simulate and analyze Design Analysis for Gorlov Helical Turbine using Ansys CFX software.
Geometry & Grid
The geometry required for this analysis was generated by Ansys Design Modeler software. The meshing required for this analysis was also generated by Ansys Meshing software. The mesh type used in this analysis is unstructured. The total number of volume properties for geometry is 7,513e+007 mm³.
In this analysis, a transient blade row analysis type was used to obtain the results to check the fluid flow. In this analysis, non-buoyant models have been used and stationary domain motion has also been activated in this analysis. In this analysis, a k-Epsilon model was used to study the air at 25 C flow and total energy fluid models of the heat transfer.
In this analysis, a rotor domain, which only includes the air at 25 C, is defined as a velocity inlet. The angular velocity domain motion is -90 [radian s^-1]. The turbulence of the design modeler is set as a medium with an intensity equal to 5 %.
In this analysis, a stationary domain, which only includes the air at 25 C, is defined as a velocity inlet. The domain motion is set as stationary. The turbulence of the design modeler is set as a medium with an intensity equal to 5 %.
Discretization of Equations
In this analysis, high-resolution is used for the advection scheme of the basic settings. In this analysis, the first-order is used for turbulence numerics. In this analysis, the residual type of convergence criteria is RMS and the residual target of convergence criteria is 1.E-4.
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