Contra-Rotating Turbine CFD Simulation Training

$210.00 Student Discount

In this project, a flow around a Contra-Rotating Turbine has been simulated, and the results of this simulation have been investigated.

Special Offers For Single Product

If you need the Geometry designing and Mesh generation training video for one product, you can choose this option.
If you need expert consultation through the training video, this option gives you 1-hour technical support.
The journal file in ANSYS Fluent is used to record and automate simulations for repeatability and batch processing.
editable geometry and mesh allows users to create and modify geometry and mesh to define the computational domain for simulations.
The case and data files in ANSYS Fluent store the simulation setup and results, respectively, for analysis and post-processing.
Geometry, Mesh, and CFD Simulation methodologygy explanation, result analysis and conclusion
The MR CFD certification can be a valuable addition to a student resume, and passing the interactive test can demonstrate a strong understanding of CFD simulation principles and techniques related to this product.


Contra-Rotating Turbine, Ansys Fluent CFD Simulation Training

The present simulation is about a contra-rotating VAWT turbine via ANSYS Fluent. The contra-rotating turbine is an axial flow turbine with two rows of blades, So these two rows of blades rotate with equal rotational speed but in opposite directions. Contra-rotating turbines recover energy and power loss due to airflow through the front row of blades.

In other words, using two rows of rotating blades in opposite directions doubles the turbine’s torque power.

In this simulation, the mesh motion method defines the rotational motion of air.

In this model, two rows of blades are designed. A distinct zone for airflow is defined in the vicinity of each of these rows. Then, for each of these two zones, mesh motion is used. The rotational velocity of both rows of blades is defined as 14.7 rad.s-1; But these two areas’ central axis of rotation is defined in opposite directions.

The airflow around the upper blades rotates clockwise, and the lower row blades rotate counterclockwise. Also, the inlet airflow velocity to the computational domain is defined as 5.3 m.s-1.

Geometry & Mesh

The present geometry is designed in a 3D model via Design Modeler. This model includes a rectangular cube computational domain with two rows of blades connected in parallel in the middle. Each row of blades has three blades.

Contra-Rotating Turbine

Contra-Rotating Turbine

The mesh of the present model has been done via ANSYS Meshing. Mesh is done unstructured, and the number of production cells is equal to 3747546.

Contra-Rotating Turbine

Set-up & Solution

Assumptions used in this simulation  :

  • pressure-based solver is used.
  • The present simulation is steady.
  • The effect of gravity is ignored.


Viscous k-epsilon
k-epsilon model standard
Near-wall treatment standard wall function
Boundary conditions
Inlet Velocity Inlet
velocity magnitude 5.3 m.s-1
Up & Down Blades Wall
wall motion stationary wall
Outlet Pressure Outlet
gauge pressure 0 pascal
Symmetry Symmetry
Pressure-Velocity Coupling SIMPLE
pressure Second-order
momentum First-order upwind
turbulent kinetic energy First-order upwind
turbulent dissipation rate First-order upwind
Initialization methods standard
gauge pressure 0 pascal
x-velocity 5.3 m.s-1
y-velocity & z-velocity 0 m.s-1

Contra-Rotating Turbine Results

After simulation, streamlines and 2D contours related to velocity, pressure, and velocity and pressure gradients are obtained. The contours show that pressure and velocity in the space between the two rows of turbine blades increase, and, as a result, the value of torque and power applied to the turbine blades is enhanced.

Also, the value of torque applied to the upper blades (clockwise) is equal to 1.89 N.m, and the value of torque applied to the lower blades (counterclockwise) is equal to 1.93 N.m. Therefore, in this turbine model, approximately equal torque is applied to each row of blades.


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