Lift and Drag Force in ANSYS CFX

Thread starter ray_riyanto
Start date Oct 22, 2017
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Ansys Drag Drag force Force Lift

In summary, ANSYS CFX is a computational fluid dynamics software that is used to analyze lift and drag forces on objects or structures. It uses numerical methods to simulate fluid flow and predict the resulting forces on the object. CFX allows for the analysis of both steady and unsteady flow conditions, making it a versatile tool for studying lift and drag forces. The software also has the ability to model complex geometries and boundary conditions, providing detailed and accurate results. Overall, ANSYS CFX is a powerful tool for understanding and optimizing the lift and drag forces experienced by objects in fluid flow.

Oct 22, 2017

ray_riyanto

How i can know the magnitude of lift and drag force from ansys cfx?

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Oct 22, 2017

berkeman

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ray_riyanto said:

How i can know the magnitude of lift and drag force from ansys cfx?

Welcome to the PF.

Can you show us your work so far? How much experience do you have with ANSYS? What ANSYS tutorials have you worked through so far?

Related to Lift and Drag Force in ANSYS CFX

1. What is the difference between lift and drag force?

Lift force is the force that acts perpendicular to the direction of motion, while drag force is the force that acts parallel to the direction of motion. In other words, lift force is responsible for the upward motion of an object, while drag force is responsible for the resistance to motion.

2. How is lift and drag force calculated in ANSYS CFX?

Lift and drag force can be calculated using the pressure and shear stress values obtained from the CFX results. The lift force is calculated by integrating the pressure and shear stress values over the surface of the object, while the drag force is calculated by integrating the shear stress values over the surface of the object.

3. Can lift and drag force be visualized in ANSYS CFX?

Yes, ANSYS CFX has a post-processing tool called the "Force Monitor" which allows users to visualize the lift and drag force acting on an object in real-time. This tool can also be used to plot the variation of lift and drag force with respect to time.

4. How does the geometry of an object affect the lift and drag force in ANSYS CFX?

The geometry of an object can significantly affect the lift and drag force acting on it. A streamlined or aerodynamic shape will experience less drag force compared to a non-streamlined shape. Similarly, the angle of attack and surface roughness of the object can also affect the lift and drag force.

5. What are some ways to reduce drag force in ANSYS CFX simulations?

There are several ways to reduce drag force in ANSYS CFX simulations. These include using a more streamlined geometry, increasing the angle of attack, and reducing the surface roughness of the object. Additionally, using turbulence models and optimizing the mesh can also help in reducing drag force in simulations.