fluid centrifugal force

Module: fluid

Category: load

Type string: "fluid centrifugal force"

Parameters

Name	Description	Default	Units
angular_speed	angular_speed	0	[r/t]
rotation_axis	rotation_axis	{0,0,1}	[]
rotation_center	rotation_center	{0,0,0}	[L]

Description

A fluid centrifugal body force per mass \(\mathbf{b}=\omega^{2}r\mathbf{e}_{r}\) may be used for bodies undergoing steady-state rotation with angular speed \(\omega\) about a rotation axis directed along \(\mathbf{n}\) and passing through the rotation center \(\mathbf{c}\). Here, \(r\) represents the distance of each material point from the axis of rotation, and \(\mathbf{e}_{r}\) is the radial unit vector from the axis of rotation, both of which are calculated internally from the knowledge of \(\mathbf{n}\) and \(\mathbf{c}\).

<body_load type="fluid centrifugal force">
  <angular_speed>1.0</angular_speed>
  <rotation_axis>0.707,0.707,0</rotation_axis>
  <rotation_center>0,0,0</rotation_center>
</body_load>