Piping Element Data - CAESAR II - Help

CAESAR II Users Guide

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CAESAR II
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CAESAR II Version
12

Element Exposure

In implementing hydrodynamic loading in your software, you must be able to indicate that elements are either exposed to the fluid or not exposed to the fluid. In CAESAR II, this is accomplished by a set of options, which indicate that the particular element is exposed to hydrodynamic loads, wind loads, or not exposed. This specification carries forward for all subsequent elements until changed.

Hydrodynamic Coefficients

Piping elements that are subjected to hydrodynamic loading must have drag (Cd), inertia (Cm), and a lift (Cl) coefficient defined. The specification of these items is optional. Alternatively, you can specify these values as constants to be applied to all subsequent exposed elements, regardless of depth or phase position in the wave. Alternatively, you can leave these values blank, which causes CAESAR II to interpolate their values from the charts previously discussed.

Marine Growth

Defines the amount of marine growth on the piping elements. This value is used to increase the diameter of the piping elements. The units for this field are the units of the current diameter. The diameter used in the computation of the hydrodynamic forces is equal to the pipe diameter plus twice the marine growth entry.