News

DEMSLab 4.1 released on February 2, 2021.

•The surface cohesive force model, which can be used to build cohesive soil, is added.

•The bonded force model between bonded spherical particle and wall, which can be used to build plants growing in the field, is added.

•The wear model of particles, which can be used to predict the wear of particles, is added.

•Two options of the treatment of over contact are provided: terminate the calculation, and remove the particles in over contact. Users can select one of them during the simulation.

•The setting of the maximum allowable overlap ratio of the particle diameter is provided.

•A new tool called video maker is added. The video can be made using a series of data files, which can be the data files autosaved during the simulation.

•A new tool called trajectory maker is added. The trajectory of particles can be made using a series of data files, which can be the data files autosaved during the simulation.

•The scaling function of device is added. The size of devices can be adjusted at any time after they are imported.

•The import and conversion function of ANSYS fluent binary MSH file is added.

•A new function that allows users to decide whether to expand the computational field when the newly defined seeder goes beyond the computational field.

•One-click-all-transparent and one-click-all-opaque setting functions in the devices tab of the field setting dialog box are added.

•The quick setting tools of shell and shellface are added (one-click-all-setting, including material, 6-DOF motion type, etc.).

•The interactive operation function of shell setting is added in GUI.

•The influence of DDM is eliminated in the determination of adaptive time step.

•The problem of improper Set button in Periodic Boundary Setting dialog box is solved.

•The problem that the display can't be updated in real time when computational field changes is solved.

•The problem that after clicking the menu of read mesh file or import geometry file, the Type dialog box will pop up and the Open file dialog box will not be opened directly to read mesh file or import geometry file, is solved.

•The problem that the line chart cannot be cleared after time resetting is solved.

•The validity checking before calculation, including the DEM mesh setting, computational field range setting, contact parameter setting, etc. is improved.

•The efficiency of STL to DEMSLab mesh is improved (at least 4 times).

•The problem of incorrect display caused by randomly clicking the mouse when importing large STL files has been solved.

•The possible problem of black edge in exported pictures and videos is solved.

•A number of other easy-to-use interactive operations have been improved in GUI.

•Many other small bugs have been solved.

•This version was released on February 2, 2021.