Calculating torque from moment results in CFD analysis

In summary, the conversation discusses the results from a model of a turbine and the need for help in understanding the negative results and their interpretation. The concept of torque and its relevance in turning a generator is also mentioned.
  • #1
Keith Chester
1
0
Hi there, attached were the results: https://prnt.sc/v3yg1f
Both are negative and need to be added together to get the torque force. Calculations are from a model of specified radius and input air speed, its a turbine. Just need help in understanding what the negative results mean and how they are interpreted, and therefore what torque force is available to turn a generator. Thanks
 
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  • #2
Welcome to PF.

An engineering “moment” about an axis, is a “torque” in physics.
The sign specifies the direction of the torque. CW or ACW.
The sign is probably not relevant when turning a generator.
 

1. How is torque calculated from moment results in CFD analysis?

Torque can be calculated by multiplying the force acting on an object by the distance from the point of rotation. In CFD analysis, this can be done by summing the moments of all the forces acting on the object and dividing by the distance from the point of rotation.

2. What units are used for torque in CFD analysis?

The units of torque in CFD analysis are typically Newton-meters (N*m) or pound-feet (lb-ft).

3. Can torque be calculated for any object in a CFD analysis?

Yes, torque can be calculated for any object as long as the forces acting on the object and the distance from the point of rotation are known.

4. How accurate is the torque calculation in CFD analysis?

The accuracy of the torque calculation in CFD analysis depends on the accuracy of the force and distance measurements used. It is important to ensure that all the forces acting on the object are accounted for and that the distance from the point of rotation is accurately measured.

5. What is the significance of calculating torque in CFD analysis?

Calculating torque in CFD analysis is important for understanding the rotational motion and stability of an object. It can also help in determining the efficiency of a design and identifying areas for improvement.

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