Coriolis Force

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Coriolis Force

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Theory

Internal fluid flow through a curved pipe introduces a Coriolis force (Patrikalakis, 1986) defined as follows:

where:

is the Coriolis force vector

is the mass of the entrained fluid

is the velocity of the entrained fluid

is the vector of nodal rotations

is a unit tangent vector

The tangent vector for a given element is assumed to be parallel to the instantaneous local-x axis of the element, and its orientation is consistent with the direction of fluid flow through the element.

Relevant Keywords

*INTERNAL FLUID is used to define the properties of an internal fluid. Coriolis forces are included by default, but the CORIOLIS= option allows you to suppress the effects of Coriolis forces in a particular analysis, allowing the relative significance of these loads to be assessed.