Flexible Nozzle with Complete Vessel Model - CAESAR II - Reference Data

CAESAR II Applications Guide (2019 Service Pack 1)

PPMProduct
CAESAR II
PPMCategory_custom
Reference Data
Version_CAESAR
11.0 (2019)

To model a flexible nozzle that includes a complete vessel, use the following guidelines:

  • Define a unique vessel node on the nozzle auxiliary data area.

    The nozzle auxiliary data area displays when you select Nozzle Flex on the Classic Piping Input dialog box. For more information, see "Nozzle Flex" in the CAESAR II User's Guide.

  • Run a rigid element between the vessel node defined in the nozzle auxiliary data area and the centerline of the vessel. The outside diameter of the rigid element should be approximately equal to the outside diameter of the vessel. The weight of the rigid element should be zero.

  • Model the actual vessel length using pipe elements. Model the vessel diameter and wall thicknesses as accurately as possible

  • Use an anchor to model the vessel anchorage point.

The CAESAR II-generated nozzle/vessel flexibilities are inserted between the nozzle node and the vessel node.

Example

Schematic

Input

Output