Archive of Release Note

The overview of the new features are as follows.

Rotating region condition

Rotating region condition with MRF (Multiple Reference Frame) has been added.

Rotating region settings is enabled by selecting "Rotating regions" at Basic Settings.

Support for OpenFOAM 8

It is now possible to export projects in OpenFOAM 8 format and exporting in OpenFOAM 4 format is deprecated.

GUI improvements

When setting a shape with the "Fit" button, you can now fit to the selected regions. If there is no selected regions, the entire shape will be fit to as before. And other improvements have been made to the GUI.

The overview of the new features are as follows.

Rotating wall boundary condition

Rotating wall condition has been added as a boundary condition. Rotating walls can be simulated by specifying axis origin, axis dirction and rotational velocity.

Mesh refinement setting to a region

In addition to the mesh refinement settings to a assembly, you can now set the mesh refinement setting to a region.

The overview of the new features are as follows.

New boundary conditions

Following two boundary conditions have been added:

• Symmetry plane
• Boundary face mapping

By using the boundary face mapping, you can set periodic boundary conditions to the model.

Improvements of GUI

Various GUI improvements have been made, including the ability to adjust the width of each column on the main screen.

In addition, the problem that an wrong value can be input with GUI was corrected.

The overview of the new features are as follows.

LES settings

You can use LES (Large eddy simulation) setting as turbulent model. Smagorinsky model and Wale model can be used as SGS model (Subgrid scale model).

Aerodynamic coefficients output settings and feature for measuring projection area

You can set aerodynamic coefficients (forece coefficients: Cd value, Cl value, Cm value）as output values. And feature for measuring projection area has been added to set the values.

Orthographic projection

Orthographic projection mode has been added. You can switch orthographic/perspective mode with icon at lower-right side of 3D view.

Feature for setting viewpoint to an axis direction

The viewpoint on 3D view can be set to an axis direction with keyboard key. At first, click 3D view to focus it, then push one of following keys to set viewpoint.

The overview of the new features are as follows.

The features for log-in

In addition to Twitter account, now you can log-in with Google account or Facebook account.

Bug fix

Fix a problem that a OpenFOAM case cannot be calculated if it uses specific name STL files.

The overview of the new features are as follows.

The features for log-in and saving projects

When you log-in XSim, you can save a project that you edit.

• Log in

  Log-in page will be diplayed by clicking "Log in" in right upper corner of page.

  "Log in" in right upper corner of page

  You need Twitter account to log-in XSim. If you click "Register/Log-in with Twitter", you will be moved to Twitter. You should give permission to XSim in the Twitter page and then you can make user account and log-in XSim.

  Log-in page

  If you log-in to XSim, your user name will be displayed in right upper corner of page (for example "My_Name" as a follow image).

  Display on log-in

• Saving a project

  If you log-in to XSim, a "Save" setting panel will be displayed on editing your project.

  "Save" setttings

  After editing project name, thumbnail and summary, click Save button to save the project. You can save projects up to 5 projects.

• Editing and deleteing a project that you saved

  If you click the user name in right upper corner of page and select "User Page", a project managing page will be displayed.

  Displaying User Page

  On "Projects" page, you can open and re-edit a project by clicking Edit button each of projects. And you can delete a project by clicking Delete button.

  Projects page

• Log out

  If you click the user name in right upper corner of page and select "Log out", you can log-out from XSim.

  The projects you saved will be kept on XSim and you can edit/delete them by log-in again.

  Log out

The overview of the new features are as follows.

Features for editing shapes

Now, imported shapes can be scaled, translated and rotated in "Import Shape".

• Scaling

  If "Scale" is selected as editing type, shape size can be changed from mm, cm, inch, feet etc... to m. And also any scaling factor can be set if you want.

  Scaling

• Translating

  If "Translate" is selected as editing type, shape's absolute coordination can be changed.

  Translating

• Rotating

  If "Rotate" is selected as editing type, shapes can be rotated with specified axis and angle.

  Rotating

Show/Hide a bounding box

You can toggle display/non-display of bounding box with icon at lower-right side of 3D view.

Displayed bounding box

Viewpoint fitting in 3D view

You can set viewpoint to show all shape in the 3D view rectagle with icon at lower-right side of 3D view. This feature is useful when you scale the size of shapes and lose sight of the shapes.

The overview of the new features are as follows.

New features in Calculation Settings

Following settings can be set in the Calculation Settings panel.

• Numerical schemes
• Matrix solvers
• Relaxation Factors

You can set "Normal", "Stability" or "Accuracy" as numerical schemes settings and "Stability" or "High speed" as matris solvers settings.

Calculation Settings

And you can set convergence criteria in a steady state analysis.

Calculation Settings - Steady state convergence criteria

The overview of the new features are as follows.

New features to output setting function

Some output-items are added to output settings panel.

Output settings - General tab

Following variables can be set as output on "General" tab.

• Residuals
• Courant number
• y+
• Vorticity
• Second invariant of velocity gradient tensol
• Minimum/Maximum values of variables for the calculation

Output settings - General tab

Output settings - Region tab

Following variables can be set to a region as output on "Region" tab.

• Flow rate (volumetric)
• Average/Integral values of variables for the calculation

Output settings - "Region" tab

Output settings - Sampling tab

Variable value at a specified coordinate can be set to output on "Sampling tab". The specified coordinate can be previeweded on 3D view.

Output settings - Sampling tab

Previewing a specified coordinate on 3D view

Show a monitoring window

If the OpenFOAM calculation is executed on a enviroment that has desktop system and gnuplot, an Allrun script starts a monitoring window when the OpenFOAM solver is started (this feature can be disabled).

Calculation Settings

Monitoring residuals

The overview of the new features are as follows.

Some features for base mesh settings

Now it is possible to easily set base mesh fineness with buttons. And the base mesh can be preview in 3D view.

Base mesh preview

Some features for mesh refinement

Now it is possible to set mesh refinement levels to a space that is specified with a cuboid or a cylinder. Mesh numbers between different refinement levels and refinement level for feature lines also can be set to.

Refinement settings

Mesh creation result (visualization with ParaView)

Changing a solver for Boussinesq approximation analysis.

A solver for Boussinesq approximation analysis is changed from "buoyantBoussinesqPimpleFoam/buoyantBoussinesqSimpleFoam" to "buoyantPimpleFoam/buoyantSimpleFoam" because of the following reasons.

• Some heat boundary conditions cannot be used with buoyantBoussinesqPimpleFoam/buoyantBoussinesqSimpleFoam.
• buoyantBoussinesqPimpleFoam/buoyantBoussinesqSimpleFoam may be deprecated in the future (Ref. OpenFOAM Isuue tracker ID 2048).

By this change, it is now possible to use some thermal boundary conditions other than adiabatic condition and fixed temperature condition in the Boussinesq approximation.

Note: The model in screenshot is "Whale" CC-BY Miguelangelo Rosario

Ver. 0.3 - January 8 2018

New features are added. The overview of the features are as follows.

Supporting Boussinesq approximation settings

Now it is possible to set Boussinesq approximation setting in thermofluid analysis. Select "Heat" and "Boussinesq approximation" on "Basic Settings".

Enable Boussinesq approximation

A feature to create cuboid and polygonal column as shape

Now it is possible to create cuboids and polygonal columns for defining calculation areas of external flow analysis. And, if the shapes to be analyzed are very simple, you can also use these functions to create the shapes without importing CAD data.

Creating a cuboid

Creating a polygonal column

Note: The model is "Whale" CC-BY Miguelangelo Rosario

Outputing an Allclean script

An Allclean script to reset created mesh and calculated result will be outputed in exporting.

Ver. 0.2 - November 30 2017

New features are added. The overview of the features are as follows.

Adding shape file formats that can be imported

Example of importing Wavefront obj format file (The model is "Whale" CC-BY Miguelangelo Rosario)

In addition to the STL format, now it is possible to import Wavefront obj format (extension .obj) and Autodesk 3DS Max format (extension .3ds) files. This allows you to import shape data that is downloaded from Google Poly etc.

Supporting thermofluid analysis

Enable thermofluid analysis

It is possible to make data for thermofluid analysis. Thermofluid analysis feature will be enabled by check "Heat" in "Basic Settings" page.

Adding a physical property library feature

Physical Property Library dialog

Physical property library feature is added to "Physical Property" page. Physical property can be changed by clicking an icon next to "Property name" and selecting a property from the list.

Adding an initial condition setting feature

Initial Condition setting page

It is possible to set initial condition explicitly in "Initial Condition" page. If no condition is set to, a default value will be used.

Adding a parallel setting feature

Parallelism setting page

It is possible to set paralle number in "Calculation Settings" page. This value will be used in meshing and fluid calculation.

Ver. 0.1 - October 30 2017

We release a web-application for making analysis setting data for OpenFOAM. You can make settings with GUI and export the data as zipped directory.

Screenshot

Feature overview

• Importing shapes from STL format file
• Meshing settings
• Setting stationary/transient type and RANS model
• Setting physical property
• Setting boundary condition
• Setinng output

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