AEATECHNOLoGY ENGINEERING SOFTWAR CFX4 Basic Concepts CFX-4 uses a segregated nonlinear solver (SIMPLEC). Each nonlinear equation is solved independently of others initial guess U momentum equation (=)sweeps Innel nonlinear V momentum equation iterations) outer iterations W momentum equation pressure(mass equation Convergence. final solution CFX-4 CFX4.3V4.3.1H Introductory Training(Dec 1999)CFX-4 Introductory Training (Dec 1999) 8 -4 CFX-4.3 V4.3.1H CFX-4 Basic Concepts CFX-4 uses a segregated nonlinear solver (SIMPLEC). Each nonlinear equation is solved independently of others. initial guess final solution U momentum equation V momentum equation W momentum equation pressure (mass) equation … ... sweeps (inner iterations) nonlinear outer iterations convergence