  This paper explores the chaotic properties of an advection system expressed
in difference equations form. In the beginning the Aref's blinking vortex
system is examined. Then several new lines are explored related to the sink
problem (one central sink, two symmetric sinks, eccentric sink and others).
Chaotic forms with or without space contraction are presented, analyzed and
simulated. Several chaotic objects are formulated especially when special
rotation angles or a complex sinus rotation angle are introduced in the
rotation-translation difference equations. Very interesting chaotic forms arise
when elliptic rotation-translation equations are applied. The simulated chaotic
images and attractors express several vortex-like forms resulting in various
situations and especially in fluid dynamics.
