### 2.6.1. Overview

An ANSYS Multi-field run enables the coupling of CFX-Solver with ANSYS Solver in order to use MFX to run cases that require two-way fluid-structure interaction. Such cases are described in detail in Using CFX and the Mechanical Application in the CFX Reference Guide and Coupling CFX to an External Solver: ANSYS Multi-field Simulations in the CFX-Solver Modeling Guide.

Note that the preferred method to couple CFX to an external solver is System Coupling. For more information about simulations involving System Coupling and CFX, refer to Coupling CFX to an External Solver: System Coupling Simulations in the CFX-Solver Modeling Guide.

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