.. _auto_curves_compute_viscosity:

*COMPUTE VISCOSITY*
===================

Computes viscosity from one or more force-displacement or stress-strain curves by numerical integration over a specified number of points. Use this worker when you need to derive viscosity metrics from raw test or simulation curves as part of a material characterization or post-processing pipeline.

When to use
-----------

Classification: **process**.

Tagged: ``curve_processing``, ``material_characterization``, ``numerical_integration``, ``transformations``, ``viscosity``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curves
     - curves
     - vector
     - —
     - 
     - One or more input curves (e.g. force-displacement or stress-strain) supplied as vectors; optional — if omitted the worker returns no result.
   * - Number Of Points
     - num_int
     - float
     - 10
     - 
     - Number of integration points used when computing viscosity; defaults to 10 — increase for higher accuracy at the cost of compute time.

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - Viscosity
     - viscosity
     - dataset
     - Dataset containing the computed viscosity value(s) derived from the integrated input curves, one row per input curve.

Disciplines
-----------

- data.curve.transform
- data.signal_processing
- engineering.material.characterization

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=curves_compute_viscosity <https://www.d3view.com/api/workflow/example?id=curves_compute_viscosity>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_compute_viscosity</code>. Schema hash: <code>c2225a3deb3b</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>