1. A method executable on one or more physical processors for implementing communications between a computer aided design (CAD) system and a multiphysics modeling system, the method comprising the acts of: establishing, via at least one of the one or more physical processors, a bidirectional link communicatively connecting a CAD system and a multiphysics modeling system, the bidirectional link providing communication from a first user interface of the multiphysics modeling system directly to a second user interface of the CAD system, wherein the bidirectional link further communicatively connects with a modeling and simulation module of the multiphysics modeling system; and directly communicating instructions from the first user interface to the second user interface via the bidirectional link as part of an iterative process, the bidirectional link residing in one or more non-transitory computer readable media, the instructions including commands for generating a geometric representation of a physical system being modeled by the multiphysics modeling system, the generating of the geometric representation in the CAD system based on parameters communicated from the multiphysics modeling system, wherein the act of directly communicating includes communicating first instructions from the first user interface to the second user interface, the first instructions including first commands for generating a first geometric representation in the CAD system based on one or more first parameters determined by the multiphysics modeling system, the multiphysics modeling system including an optimization process for automatically determining one or more updated parameters based on the one or more first parameters, the act of directly communicating further including communicating second instructions from the first user interface to the second user interface, the second instructions including second commands for generating an updated geometric representation in the CAD system based on the one or more updated parameters.