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Fix typo added while specifying cpp as syntax highlight
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ashwinvis committed Aug 30, 2024
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6 changes: 3 additions & 3 deletions content/numerics.rst
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Expand Up @@ -22,14 +22,14 @@ Numerical schemes

OpenFOAM includes a wide range of solution and scheme controls, specified via dictionary files in the case **system** sub-directory. These are described by:

- Numerical schemes: Transforming partial differential equations to a linear system of equations using the Fcppte Volume Method. The treatment of each term in the system of equations is specified in the ``fvSchemes`` dictionary. This enables fine-grain control of e.g. temporal, gradient, divergence and interpolation schemes. Additional run-time selectable physical modelling and general fcppte terms are prescribed in the ``fvOptions`` dictionary, targeting e.g. acoustics, heat transfer, momentum sources, multi-region coupling, linearised sources/sinks and many more
- Numerical schemes: Transforming partial differential equations to a linear system of equations using the Finite Volume Method. The treatment of each term in the system of equations is specified in the ``fvSchemes`` dictionary. This enables fine-grain control of e.g. temporal, gradient, divergence and interpolation schemes. Additional run-time selectable physical modelling and general finite terms are prescribed in the ``fvOptions`` dictionary, targeting e.g. acoustics, heat transfer, momentum sources, multi-region coupling, linearised sources/sinks and many more
- Solution methods: Case solution parameters are specified in the ``fvSolution`` dictionary. These include choice of linear equation solver per field variable, algorithm controls e.g. number of inner and outer iterations and under-relaxation.



OpenFOAM applications are designed for use with unstructured meshes, offering up
to second order accuracy, predominantly using collocated variable arrangements.
Most focus on the Fcppte Volume Method, for which the conservative form
Most focus on the Finite Volume Method, for which the conservative form
of the general scalar transport equation for the transported quantity :math:`\phi` takes the
form:

Expand All @@ -44,7 +44,7 @@ form:



The Fcppte Volume Method requires the integration over a 3-D **control volume**,
The Finite Volume Method requires the integration over a 3-D **control volume**,
such that:

.. math::
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6 changes: 3 additions & 3 deletions content/workflow.rst
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Expand Up @@ -22,7 +22,7 @@ Workflow
Case structure
--------------

To setup a case, you need to have at least 3 directories in your case directory, namely **system**, **constant** and **<cpptial time directory>** (normally **0**).
To setup a case, you need to have at least 3 directories in your case directory, namely **system**, **constant** and **<initial time directory>** (normally **0**).

.. code:: bash
Expand All @@ -37,7 +37,7 @@ OpenFOAM cases are configured using plain text input files located across the th
- ``controlDict``: the main simulation control parameters. This includes, e.g. timing information, write format, and optional libraries that can be loaded at run time
- ``fvSchemes``: the selection of the numerical schemes
- ``fvSolution``: the iterative solver and pressure-velocity coupling parameters
- ``fvOptions``: user-specified fcppte volume options. Many OpenFOAM applications contain equation systems that can be manipulated at run time. These provide, e.g. additional source/sink terms, or enforce constraints.
- ``fvOptions``: user-specified finite volume options. Many OpenFOAM applications contain equation systems that can be manipulated at run time. These provide, e.g. additional source/sink terms, or enforce constraints.
- ``blockMeshDict``: to control the block-structrued mesher blockMesh
- ``snappyHexMeshDict``: to set the parameters for snappyHexMesh, another mesher shipped with OpenFOAM
- ``decomposeParDict`` : to set the parameters of the domain decomposition used for running OpenFOAM in parallel
Expand All @@ -51,7 +51,7 @@ OpenFOAM cases are configured using plain text input files located across the th
- ``turbulenceProperties``: the turbulence modelling
- ...

**<cpptial time directory>**: contains cpptial fields of the flow e.g. velocity, pressure etc. and boundary conditions
**<initial time directory>**: contains initial fields of the flow e.g. velocity, pressure etc. and boundary conditions


Additional directories can be generated, depending on user cases, most common ones include e.g.:
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