element('PFEMElementBubble', eleTag, *eleNodes, rho, mu, b1, b2, <b3>, <thickness, kappa>)

Create a PFEM Bubble element, which is a fluid element for FSI analysis.

eleTag (int)

tag of the element

eleNodes (list (int))

A list of three or four element nodes, four are required for 3D

nd4 (int)

tag of node 4 (required for 3D)

rho (float)

fluid density

mu (float)

fluid viscosity

b1 (float)

body body acceleration in x direction

b2 (float)

body body acceleration in y direction

b3 (float)

body body acceleration in z direction (required for 3D)

thickness (float)

element thickness (required for 2D)

kappa (float)

fluid bulk modulus (optional)