Helical Wind Turbine, ANSYS Fluent CFD Simulation Training
$210.00 Student Discount
- The problem numerically simulates the Helical Wind Turbine using ANSYS Fluent software.
- We design the 3-D model with the Design Modeler software.
- We mesh the model with ANSYS Meshing software, and the element number equals 2129987.
- We perform this simulation as unsteady (Transient).
- We use the Mesh Motion model to define rotational motion.
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This simulation is about a helical wind turbine via ANSYS Fluent software.
Vertical Axis Wind Turbine (VAWT) is becoming ever more important in wind power generation thanks to their adaptability for domestic installations. However, it is known that VAWTs have lower efficiency, above all, if compared to HAWTs.
To improve VAWTs performance, industries and researchers are trying to optimize the design of the rotors. This project will simulate an airflow field close to a helical wind turbine.
The inlet is considered to wind at 1 m/s, and the turbine zone rotates with 120 RPM. This paper investigates the behavior of airflow and pressure distribution and studies drag force.
The geometry of the present model is drawn by Design Modeler software. This geometry included a rotary zone for the turbine walls and a stationary zone for the rest of the domain.
The model is then meshed by ANSYS Meshing software. The model mesh is unstructured, and 2129987 cells have been created.
Helical Wind Turbine Methodology
In this simulation, the rotational motion of the turbine blades must be defined. But instead of applying rotational motion to the blades, rotational motion is applied to the field around the blades. So, it is necessary to separate a distinct zone as the moving zone from the total computing zone.
Since this turbine is one of the vertical axis turbines, the behavior of the fluid is dependent on time; because the position of the turbine blades varies over time. Then the mesh motion is used in cell zone conditions. In this method, the rotation axis and rotation speed must be determined.
Helical Wind Turbine Conclusion
After simulation, the contours of velocity and pressure are obtained. Also, velocity vectors around the turbine blades are obtained. The results show that the wind flow around the turbine blades has a rotational movement. The velocity field adjacent to the wall of the turbine has the highest gradient.
Also, The leading edge of the turbine wall suffers from the highest-pressure gradient, which is logical since the velocity has just met zero. Additionally, the streamlines illustrate the quality of the flow streams resolved in the wake section, which is the core challenge of aerodynamic simulation.
Finally, the drag force is 2.3 (N), which is accurate for a turbine with the noted specifications.