Boat Propeller ANSYS CFX Training
$150.00 Student Discount
- The problem numerically simulates the rotation of Boat Propeller using ANSYS CFX software.
- The geometry is designed in a 3D model with the SpaceClaim software.
- We performed the mesh of the model with ANSYS Meshing software, and the element number equals 4,037,941.
- Frozen Rotor is set for frame change model of the interfaces.
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In this project, the rotational movement of Boat Propeller in steady form is modeled via ANSYS CFX software.
Torque, or the force that makes anything revolve, is transformed into thrust by a propeller. A rotating propeller causes water to travel behind and downward behind the blades, producing a thrust of water from the blades.
Each blade has a particular curved design that, when it rotates, aids in moving the water behind it and down, functioning as a foil to do so before pushing the water out from behind.
The 3D geometry of the solution is designed in SpaceClaim software. The propeller which is placed at middle of the domain and closer to the inlet. The waterflow enters the domain with the velocity of 20m/s while the propeller rotates with the rotational velocity of 1500rpm.
Then the geometry is connected to the ANSYS Meshing software. The elements with a high quality are produced in tetrahedral type.
Furthermore, 5 layers of inflation is set around the circle which results in elements equal to 1,746,106 and 2,291,835 for stationary and rotating zones, respectively.
Methodology: Boat Propeller
The simulation is performed Independent of Time (steady state). In addition, the effects of gravity are neglected.
The turbulence model is Shear Stress Transport (k-ԑ SST).
The domain motion of the propeller zone is set to rotating. Also, the frame change model of the interfaces is set to Frozen Rotor.
The Advection Scheme and Turbulence Numeric is High Resolution.
At the end of the solution process, two-dimensional contours, vectors and streamlines related to velocity, pressure, Eddy viscosity and the Turbulence Kinetic Energy are obtained.
As shown in the figures, the pressure amount on the propeller is visible.
The periodic behavior of waterflow over time is displayed in animations exported from CFD-Post software.
Also, paying more attention, the vortexes behind the propeller is clearly visible via vectors.
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