wheel

NAME

wheel

SYNOPSIS

          wheel x0 y0 r [-optional link arguments]

DESCRIPTION

wheel creates a circular entity of immersed boundary points with a singlet at (x0,y0) and spokes connecting every immersed boundary point on the circle with the singlet. wheel requires three arguments.

• x0 - x coordinate of the wheel center
• y0 - y coordinate of the wheel center
• r - the radius of the wheel

wheel allows for optional link arguments by interpreting the following options.

• -A name - indicates this entity is active and provides a name
• -b bend - bending stiffness at the IB points (default=40000)
• -N name - provides a name for the entity
• -n number - number of IB points around the wheel
• -s stiff - inter-IB-point spring stiffness (default=40000)
• -t tether - tether spring stiffness (default=0)

The stiffness of the spokes is the same as stiff.

SEE ALSO

circle, singlet, slink

EXAMPLE

          wheel 1.0 1.25 0.5 -b 10000

Sets a wheel centered at (1,1.25) with a radius of 0.5 and increases the bending stiffness to 10000. The following code will produce and identical result.

          circle 1.0 1.25 0.5 -b 10000 -N 1
          singlet 1.0 1.25 -N 2
          slink 1 2