Abaqus Keywords Reference Guide  
How to find keyword examples

*AQUA
Define fluid variables for use in loading immersed beam-type structures.

This option is used to define the fluid properties and steady-current velocity.

Product: Abaqus/Aqua  

Type: Model data

Level: Model  

Reference:

Optional parameter:

INPUT

Set this parameter equal to the name of the alternate input file containing the data lines for this option. See “Input syntax rules,” Section 1.2.1 of the Abaqus Analysis User's Guide, for the syntax of such file names. If this parameter is omitted, it is assumed that the data follow the keyword line.

Data lines to define fluid properties and a steady current: 

First line:

  1. Elevation of the seabed.

  2. Elevation of the still fluid surface.

  3. Gravitational constant.

  4. Mass density of the fluid.

Second line:

  1. Steady velocity of the fluid in the X-direction.

  2. Steady velocity of the fluid in the Y-direction.

  3. Steady velocity of the fluid in the Z-direction. Only relevant for three-dimensional cases.

  4. Elevation.

  5. X-coordinate defining the location where the velocity applies. If this value is omitted, the velocity is assumed to be independent of position in the X-direction.

  6. Y-coordinate defining the location where the velocity applies. Only relevant for three-dimensional cases. If this value is omitted in a three-dimensional analysis, the velocity is assumed to be independent of position in the Y-direction.

Repeat the second data line as often as necessary to define the steady current velocity as a function of elevation and spatial coordinates. See “Input syntax rules,” Section 1.2.1 of the Abaqus Analysis User's Guide, for a description of how to define a property as a function of multiple independent variables.