pdrag

Piping.pdrag(px1='', py1='', pz1='', h1='', px2='', py2='', pz2='', h2='', kcord='', **kwargs)

Defines the external fluid drag loading for a piping run.

Mechanical APDL Command: PDRAG

Parameters:

px1str

External fluid drag pressure (global Cartesian components) at height H1.

py1str

External fluid drag pressure (global Cartesian components) at height H1.

pz1str

External fluid drag pressure (global Cartesian components) at height H1.

h1str

Height (along Kcord coordinate) for first drag pressure.

px2str

External fluid drag pressure (global Cartesian components) at height H2.

py2str

External fluid drag pressure (global Cartesian components) at height H2.

pz2str

External fluid drag pressure (global Cartesian components) at height H2.

h2str

Height (along Kcord coordinate) for second drag pressure.

kcordstr

Coordinate direction for height value (in the global Cartesian coordinate system):

• X - X coordinate.

• Y - Y coordinate (default).

• Z - Z coordinate.

Notes

Defines the external fluid drag loading (pressure) as a function of height for a piping run. (See the RUN command description in Archived Commands.) The element drag pressure is determined from the centroid height and linear interpolation. Pressures are assigned to the elements as they are generated.

Warning

This command is archived in the latest version of the software.