### 11.5.2. ANSYS GST and NLH Variables

The variables that are typically present in GST or NLH files under the ANSYS heading are listed in the table below together with a brief description (for the context of an ANSYS Multi-field MFX simulation). Other variables may be present depending on the solution physics and the specified convergence targets. For full details, see the ANSYS Product documentation.

Variable Name | Description
--- | ---
Bisection | For details, refer to Time Step Bisection in the Mechanical APDL Theory Reference.
Line Search Parameter | For details, refer to LNSRCH in the Mechanical APDL Command Reference.
Load Step | In the context of an ANSYS Multi-field run, `Load Step` is the same as a multi-field timestep or `Coupling Step`.
Max DOF Incr | The largest change detected in the degree of freedom of interest over the last two equilibrium iterations.
Sub-step | The ANSYS field solver may be set to use a smaller timestep than the multi-field timestep. This is known as sub-cycling. In this case, the multi-field timestep is broken into a series of sub-steps.
Time | Multi-field time (current simulation time for a transient case).
Time Incr | Current time increment (may be variable if adaptive time-stepping is used).
<variable> CRIT, <variable> L2, <variable> L1, <variable> INF | Only in the GST file. For details, see ANSYS Field Solver Plots.
UX, UY, UZ, FX, FY, FZ, TEMP, HFLU | Only in the NLH file. For details, see ANSYS Interface Loads Plots.

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