.. _om6_wing_webUI:
.. |deg|    unicode:: U+000B0 .. DEGREE SIGN
   :trim:

ONERA M6 Wing with WebUI
************************

The ONERA M6 wing is a swept, semi-span wing with no twist that uses a symmetric airfoil. Widely known to aerodynamicists, the model serves as a classic reference to validate CFD methods for external flow due to its ideal combination of a simple geometry and a complex transonic flow.  More information about the ONERA M6 Wing can be found at `NASA's website <https://turbmodels.larc.nasa.gov/onerawingnumerics_val.html>`_.  The model used here has a normalized root chord of 1 m, resulting in the following geometric parameters:

- Mean Aerodynamic Chord (MAC) = 0.80167 m
- Semi-span = 1.47602 m
- Reference area = 1.15315 m\ :sup:`2`



.. image:: Figures/Geometry_Iso.png
   :scale: 70%
   :align: center

The mesh used for this case contains 113k nodes and 663k tetrahedrons, and the flow conditions are:

- Mach Number = 0.84
- Reynolds Number (based on MAC) = 11.72 Million
- Alpha = 3.06 |deg|
- Reference Temperature = 297.78 K

Get CFD results in two simple steps
===================================

After you `sign in <https://flow360.simulation.cloud>`_, visit https://flow360.simulation.cloud/volumemeshes. 

**Step 1. Upload the Volume Mesh File:**

To upload a volumetric mesh file, under the **Volume Mesh** tab click on **Upload** icon as displayed below:

.. image:: Figures/UploadMesh.png
   :scale: 60%
   :align: center

This will open a window as shown in the next figure.  You need to upload the volume mesh file here. Download an example mesh of M6 Wing `here <https://simcloud-public-1.s3.amazonaws.com/om6/wing_tetra.1.lb8.ugrid>`__.  When uploading the mesh, endianness will be automatically set to 'little endian'.  More information on endianness can be found `here <https://en.wikipedia.org/wiki/Endianness>`__.  (**Note**: Mesh Name and Tags are optional. For Release History, the latest solver version will be used here by default.)  Then click submit to upload and process your mesh. You can see the status of the mesh under the **Status** heading.

.. image:: Figures/UploadMeshFile.png
   :scale: 40%
   :align: center

**Step 2. Launch a CFD Case:**

You do not have to wait for your mesh to be processed. Once your mesh is uploaded you can start the case submission process. To start a new case, click on the airplane icon under the **Actions** heading as shown below.

.. image:: Figures/NewCase.png
   :scale: 60%
   :align: center

Once you click the airplane icon, the webpage will re-direct you to an interactive interface to either generate a case configuration json online or upload a pre-configured JSON file via **Upload JSON file**.  

.. image:: Figures/StartNewCase.png
   :align: center

Please use this `Flow360.json <https://simcloud-public-1.s3.amazonaws.com/om6/Flow360.json?content_disposition=attachment>`_ file for the current case and upload it via the pop-up window prompt. 

.. image:: Figures/UploadCaseJsonFile.png
   :scale: 60%
   :align: center

A full dictionary of configuration parameters for the JSON input file can be found :ref:`here <solverConfiguration>`.  You may also provide a Case Name and Tags to track your case later on. Hit **Submit** to run your case.  Once the case is submitted, you can check the status by clicking the **Case** tab.

.. image:: Figures/CaseStatus.png
   :scale: 60%
   :align: center

Visualizing the Results
========================

While your case is running, or after that, you can visualize the Residuals and Forces plot by clicking on your case name and viewing them under the **Convergence** and **Forces** tabs, respectively.

.. image:: Figures/ConvergenceTab.png
   :scale: 60%
   :align: center

For example, the Forces plots for this case are:

.. image:: Figures/CD_CL.png
   :scale: 40%
   :align: center

.. image:: Figures/CF.png
   :scale: 40%
   :align: center

.. image:: Figures/CM.png
   :scale: 40%
   :align: center

Once your case has completed running, you can also visualize the contour plots of the results under the **Visualization** tab.  Contour plots for coefficient of pressure (C\ :sub:`p`\), coefficient of skin friction (C\ :sub:`f`\), y\ :sup:`+`\, and C\ :sub:`f`\  with streamlines are provided.

.. image:: Figures/VisResults.png
   :scale: 70%
   :align: center

.. _webUI_download_results:

Downloading the Results
========================

Once your case has finished running, you can download the results (i.e., integrated loads, surfaces, volume and log) by clicking the download arrow under the **Actions** heading.


.. image:: Figures/DownloadResults.png
   :scale: 70%
   :align: center

The volume and surface data can be postprocessed in either ParaView or Tecplot based on your selection of :code:`outputFormat` in the Flow360.json file. The log file (flow360_case.user.log) can be used to view the solver progression and other run details.

.. _om6_wing_webUI_fork:

Fork a Case
============

You can also continue a case from the last point of the previous run by clicking the Fork icon under the **Actions** heading. Once the case is forked, you may change the parameters of your Flow360.json configuration file according to your needs, or upload an entirely new configuration file.


.. image:: Figures/ForkCase1.png
   :scale: 70%
   :align: center
.. image:: Figures/ForkCase2.png
   :scale: 60%
   :align: center

Deleting a Case or Mesh
========================

You can delete a case or a mesh file by clicking on the trash can icon under the **Actions** heading. *Caution: mesh and case files (including results) cannot be recovered once deleted.*


.. image:: Figures/DeleteMeshCase_1.png
   :scale: 70%
   :align: center