The Design – 3D Pully With Arm Simulation in CFD | ANSYS Fluent

The Design – 3D Pully With Arm Simulation in CFD | ANSYS Fluent

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This simulation is about a pulley with an arm via ANSYS Fluent software. We perform this CFD project and investigate it by CFD analysis.

A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt or transfer of power between the shaft and cable or belt. In the case of a pulley supported by a frame or shell that does not transfer power to a shaft, but is used to guide the cable or exert a force, the supporting shell is called a block, and the pulley may be called a sheave.

A pulley may have a groove or grooves between flanges around its circumference to locate the cable or belt. The drive element of a pulley system can be a rope, cable, belt, or chain.

The earliest evidence of pulleys dates back to Ancient Egypt in the Twelfth Dynasty (1991-1802 BCE) and Mesopotamia in the early 2nd millennium BCE. In Roman Egypt, Hero of Alexandria (c. 10-70 CE) identified the pulley as one of six simple machines used to lift weights. Pulleys are assembled to form a block and tackle in order to provide mechanical advantage to apply large forces. Pulleys are also assembled as part of belt and chain drives in order to transmit power from one rotating shaft to another. Plutarch’s Parallel Lives recounts a scene where Archimedes proved the effectiveness of compound pulleys and the block-and-tackle system by using one to pull a fully laden ship towards him as if it was gliding through water.

This analysis has tried to simulate and analyze the modeling of a pulley with an arm using ANSYS Fluent software.

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Geometry & Grid

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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 5,1118e+006 mm³.

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Model

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K-epsilon (2 equation) model has been used for fluid flow inside the design modeler and the simulation considers air phenomena. So, Case will be initialized with mixed pressure are solved.

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Boundary Condition

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The momentum input for this geometry is considered as Moving Wall in Wall Motion, at a constant speed of rotational velocity is 225 rad/s. The momentum of the shear condition is also considered as No Slip. The motion of the design modeler is defined as Relative to Adjacent Cell Zone for the circular outer domain boundary condition.

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Discretization of Equations

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According to the type of flow, the SIMPLE algorithm is used to discretize the Pressure-Velocity Coupling of the solution method. The momentum equation has been discretized in the Second Order Upwind.

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The Design Services

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We also accept all CFD projects using ANSYS Fluent and ANSYS CFX. Our workshop has gathered experts in different engineering fields so as to ensure the quality of CFD simulations. One of our objectives is to boost the use of powerful computational fluid dynamics methods and also teach the engineers and those who seek professional knowledge in CFD.

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