News

DEMSLab 5.4 released on July 20, 2024.

DEMSLab 5.4 Release Notes

• The Tavares breakage model is added.

• The maximum number of breakage families for breakage model increases from 100 to 200.

• The cutting algorithm for breakage is improved to enhance its stability.

• The tester is added, which can test the mass flow rate and volume flow rate of particles.

• The adaptive mesh size method is added, which can adaptively calculate the size of the DEM mesh.

• The module for outputting device and particle information as STL files is added.

• The method for determining adaptive time step size for non-spherical particles is improved to ensure computational stability.

• The method for updating the rotational speed of non-spherical particles is improved to enhance the calculation accuracy of high-speed rotating non-spherical particles.

• The calculation of the rotational position of spherical particles is added.

• The DEMSLab - RecurDyn coupling method is improved to enable the use of adaptive time steps.

• The DEMSLab - RecurDyn coupling method is improved to enable multiple sets of coupling simulations to be performed on the same computer.

• The option of transient force or time averaged force on the device has been added in the DEMSLab - RecurDyn coupling, improving the calculation accuracy.

• The module for simplifying and convexifying polyhedral particles is added.

• The import algorithm for polyhedral particles has been improved to enhance efficiency.

• The algorithm for polyhedral particle contact is improved to enhance stability.

• Dozens of User C functions are added to improve the applicability of User C functions.

• The parallel efficiency of the solver after loading User C functions is significantly improved.

• Two model options for heat conduction between particles are added, one based on contact area and the other based on contact force.

• The bonded-sphere model is improved to significantly enhance the computational efficiency and reduce memory usage.

• The option of permitted overlap for forcibly inserted particle is added.

• The option for the smooth range of semi-resolved DEM-CFD coupling is added.

• The CFD-DEM coupling method has been improved to enhance computational accuracy.

• The CFD-DEM convective heat transfer model for non-spherical particles has been improved to enhance computational accuracy.

• The algorithm for calculating virtual mass force has been improved to enhance accuracy.

• The User C function USER_CFD_VIRTUAL_MASS_FORCE is changed to USER_CFD_VIRTUAL_MASS_COEFFICIENT for reducing programming difficulty.

• The Fluent mesh to DEMSLab mesh conversion algorithm is improved to enhance its applicability.

• The DEMSLab Viewer is improved to enhance efficiency and aesthetics.

• The video maker is improved to enhance the efficiency of video production.

• The function of contour plots for only some parts is added.

• Improve the usability of some GUIs.

• Many other small bugs have been cleared.

• This version was released on July 20, 2024.