4.2.15.1. PFEMElementBubble

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)