Products | OMNIS™ Platform

Explore, collaborate and innovate, all in a single environment

OMNIS™ is NUMECA’s unified environment for multidisciplinary design, simulation and optimization. It is compatible with all NUMECA products and enables you to access a new generation of user-interface, from pre- to post-processing tools. Via OMNIS™, you can access a variety of solvers using RANS-, URANS-, LES- or Lattice-Boltzmann methods. All these solvers provide the possibility to visualize the solution parallel to the computation (co-processing).

Furthermore, an application programming interface (API) for Python and C++ is included to plug-in other commercial and open-source solvers. OMNIS™ offers a native client-server architecture and imports and links all major CAD systems (Catia, Creo, SolidWorks, NX,…).

With OMNIS™, a new generation of simulation environment is provided: all tools for meshing, simulation, design, exploration and optimization in one GUI!

Description

OMNIS™/Hexpress is the implementation of our unstructured mesh generator HEXPRESS™/Hybrid in the new environment. Besides the grid generation capabilities, a series of flexible tools have been integrated to simplify or repair your CAD-geometry or to create multiple design variants. These design modifications can then be meshed and simulated in an efficient and intuitive way.

Key Features

  • Import and edit your CAD model
  • Dynamically adapt the triangulation
  • Repair the geometry with advanced tools
  • Define and mesh multiple designs
  • Use HEXPRESS™/Hybrid’s most advanced capabilities:
    – Choose between hybrid and full hexahedral mesh
    – Flexible refinement options
    – Fully parallel
  • Analyze the result with quality histograms and color contours. Isolate and display the cells by quality criteria ranges
  • Export your mesh to various formats to be used with NUMECA and a variety of other solvers such as Ansys Fluent and CFX, OpenFoam, Siemens StarCCM+

Applications

A high-fidelity solution for complex internal and external flows

Description

OMNIS™/LB is a particle-based Lattice-Boltzmann solver which complements NUMECA’s existing CFD solutions. It is based on the open source code PALABOS, which was the result of a long cooperation between NUMRI and FlowKit. This code was further improved and finally integrated as OMNIS™/LB. A wide range of industrial applications and processes are supported already.

One particular advantage of this approach is the modelling on a mesoscopic scale: this removes the necessity of a numerical grid, hence saving user time, especially for very complex problems. Due to an efficient parallelization the turnaround times for OMNIS™/LB can even be reduced compared to conventional Navier-Stokes-bases LES simulations.

Key Features

  • Highly efficient parallelization
  • Model highly complex geometries without meshing
  • Multiple bodies, contacts
  • Transient modelling of complex flows on a mesoscopic scale
  • Free surface and multi-phase flows
  • Heat transfer
  • Chemical reactions
  • Non-Newtonian fluids
  • Surface tension
  • Porous media

Applications

  • Automotive: Drivetrain, gear boxes, couplings and bearings
  • Hydro Energy: Filters
  • Volumetric pumps and mixers
  • Geophysical flows
  • Biofluids
  • Fluid-membrane interactions with large deformations

A Discrete Element Solver for particle simulations

Description

About 80% of all industrial processes are working with granular materials. Yet to this day, particle simulations remain unpopular compared to conventional CFD methods. But these have only a limited validity on these cases. This gap is now filled with OMNIS™/Mpacts, which provides accurate results when the interactions between particles of arbitrary form and shape are important.

The Discrete-Element-Method from OMNIS™/Mpacts solves the equations of motion for all particles defined in the domain, without the need for a numerical grid. A coupling to other numerical methods like CFD and Lattice-Boltzmann exists, when flow physics are also important.

Key Features

  • Simulation of all particle sizes and shapes
  • Precise representation of the particle geometry
  • No numerical grid necessary
  • Separate or coupled calculation with RANS or LB-methods