  We present meson-meson (Wilson loop) correlators in Z(2) center vortex models
for the infrared sector of Yang-Mills theory, i.e., a hypercubic lattice model
of random vortex surfaces and a continuous 2+1 dimensional model of random
vortex lines. In particular we calculate quadratic and circular Wilson loop
correlators in the two models respectively and observe that their expectation
values follow the area law and show string breaking behavior. Further we
calculate the catenary solution for the two cases and try to find indications
for minimal surface behavior or string surface tension leading to string
constriction.
