TwinMesh automatically generates high quality hexahedral grids for the moving parts of rotary positive displacement machines such as gear, lobe, gerotor and vane pumps or screw and scroll compressors.
TwinMesh is complementary to market leading CFD solvers like Simcenter STAR-CCM+ and Ansys CFD. It allows for reliable CFD analysis of pd machines using all physics available in these CFD software packages.
Fast
TwinMesh provides an automated workflow for structured mesh generation and CFD analysis setup of rotary positive displacement machines.
Reliable
TwinMesh delivers high resolution and high quality numerical grids, avoids interpolation errors and allows the usage of the full range of physics available in major CFD solvers.
Efficient
Structured grids made with TwinMesh allow for reasonable transient CFD model size while ensuring maximum numerical quality.
Our customers











































Discover Features of TwinMesh
TwinMesh is available for these PD Machines
%
High Quality Numerical Grids
And Less Gap Size is Possible
%
Of Rotary PD Machines Available
%
Reliable and Amazing Results
Works seamlessly with

Built on Years of CFD Simulation Expertise
TwinMesh is developed by CFD experts from CFX Berlin Software GmbH, a Siemens Expert Partner and simulation specialist from Germany for over 25 years.
See TwinMesh & Simcenter STAR-CCM+ for Simulation of PD Machines in action!
Get Notifications About Our Free Webinars
Download the presentation on multiphase CFD simulation
At the International Conference on Screw Machines 2026, held from 8 to 10 September at TU Dortmund University, Jan Hesse from CFX Berlin Software GmbH presented insights into multiphase CFD simulation of positive displacement machines using Simcenter STAR-CCM+.
TwinMesh 2026 has arrived! Find out what’s new!
We are pleased to announce the release of TwinMesh 2026! You can download the latest version in our user portal. Here we have some information about the new features for you!
The power of collaboration: Rotor Design Solutions, TwinMesh, and INTEC ROTORS partner to offer a streamlined workflow for PD machine design
When RDS’s designs and TwinMesh’s simulations are paired with INTEC ROTORS’s manufacturing expertise, the result is a streamlined, end-to-end solution for rotary PD machine design where theory seamlessly transforms into reality.



