Particleworks5 is focused on extending basic solver capabilities including flexible boundary conditions, improved distance function generation, and automatic simplification of complex shapes. The redesigned user interface, along with accelerated graphics processing, allows for an intuitive user experience. In addition to the new enhancements, coupled simulation with RecurDyn (Function Bay, Inc.) offers a variety of inflow boundaries, and complex motion configurations.
Coupled simulation with RecurDyn
In addition to defining forced movement of solid bodies, more realistic fluid behavior is also realized by coupling Particleworks with RecurDyn.
The behavior of the mechanics model is first computed by RecurDyn. Particleworks then computes fluid behavior while taking previously-computed mechanical behavior into account, giving the fluid behavior back to RecurDyn. This allows interaction between mechanics and fluids to be computed. The results provide more suitable computing on simulations like lubricant behavior inside the housing of a transmission chain mechanism. Degrees of lubricant splashing and dripping associated with loosening and shaking of the chain can be calculated more appropriately.
Courtesy of Thomas Freviller and FunctionBayK.K.
Courtesy of Amine, member of mechatronics INSAT and FunctionBayK.K.
Example: Fluid in a box connected to a spring
Redesigned user interface for ease of use
Particleworks 5 offers a new user interface to make simulation work more efficiently. In addition to basic function and design improvements, the interface provides accelerated rendering and visual manipulation. Users experienced with CAD and CFD software can use it intuitively without a long learning curve.
Project management with efficiency : Multiple related cases are stored in one project.
Direct manipulation of objects : Objects are visually editable thanks to picking and other enhanced mouse operations.
Enhanced popup menus : Quick access to commands and animation controls from the right-click menu.
Accelerated graphics and I/O : Improved file loading and caching with enhanced graphics processing enable users to build and visualize large-scale models.
Undo / Redo : Input parameters,camera angles and object movements can be undone and reapplied.
Improved handling of complex shapes
Improvement in the algorithm for generating distance function, along with the new functionality that automatically simplifies the complex shapes of polygon walls, results in more stable simulation. Previously, particles rebounding off a wall after being caught in a gap or hole would lead to unstable computation. To avoid this, users needed to manually simplify the shape. However, thanks to this new function, simplification takes considerably less time.
Rotational motion on arbitrary axis,and combined movements
Complex movements such as tilted axis rotation and planetary motion based on combined movements, are now supported.
Surface shapes supported
Particleworks can now model surface shapes directly as polygon walls. Since the solver automatically calculates the thickness, it is not necessary to create a solid from a surface manually in advance.
Larger variety of inflow boundary shapes
In addition to circles and rectangles, oval, torus and arbitrarily-shaped inflow boundaries are available for assorted uses.
Improved handling of particles across boundary walls
Particles separated by a thin polygon wall no longer interact with each other, improving simulation accuracy for high-viscosity fluid and heat-conduction analysis.
For simulations with periodic shapes and physical-property distributions, periodic boundary can be configured cutting out an area,reducing computational costs and time.
Faster pre-processing (multi-core support)
Preprocessing now utilizes multi-core acceleration. With a 4-core CPU, proprocessing time was cut in half on our tested models compared with the previous version.