| (24) |
The moment coefficient report is represented in the simulation tree by a node, which has its own properties but is subject to the report node's pop-up menu.
The moment coefficient of force on a surface about an axis is defined as:
|
| (24) |
where 
and 
are the pressure and shear force vectors and 
is a vector defining the axis through point 
about which the moment is taken and 
is the position of face 
relative to 
. 
, 
, 
and 
are the reference density, velocity, area and radius, respectively.
The pressure force vector on surface face 
is computed as:
| (25) |
where 
is the face pressure, 
is the face area vector, and 
is the reference pressure. As defined, this is the force that the fluid exerts on the surface.
The shear force on surface face 
is computed as:
| (26) |
where 
is the stress tensor at face 
. This is the shear force exerted on the surface by the fluid.
|
|
A Cartesian vector specifying the axis |
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|
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Which of the forces (shear and pressure) will be considered in the computation of the moment. |
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| Shear |
Only the force due to shear, |
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| Pressure |
Only the force due to pressure, |
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| Pressure & Shear |
Both pressure and shear forces, |
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|
|
A list of parts that will be used as the source for this report. Opens the in-place part selector for editing. |
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|
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A Cartesian position vector specifying the point |
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|
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The reference area for the computation of Eqn. 24. |
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|
|
The reference density for the computation of Eqn. 24. |
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|
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The reference pressure for the computation of Eqn. 25. |
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|
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The reference radius for the computation of Eqn. 24. |
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|
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The reference velocity for the computation of Eqn. 24. |
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of 
in 
in 
and 
in 
on the axis 
about which the moment is taken.