TwinMesh for Reliable CFD Analysis of Gerotor Pumps
Combining TwinMesh and CFD solvers offers engineers a unique, efficient and fast workflow for transient, three-dimensional computational fluid and thermal analysis (CFD) of gerotor pumps.
Design Engineers of Gerotor Pumps Have to:
- Know the machine behavior and possible limits of their products
- Analyse the impact of changing operation requirements (e.g other fluid viscosity, different revolution speeds, impact of external temperatures, etc.)
- Be able to answer specific customer demands
- Produce fast and reliable answers
Thanks to our software TwinMesh real virtual product development is available for gerotor pumps! TwinMesh combined with leading CFD solvers allows for fast, reliable, and efficient CFD analysis of gerotor pumps.


No More Numerical Limits
Common limitations of CFD software packages for gerotor pumps such as
- limited physics,
- insufficient mesh resolution and numerical errors due to bad mesh quality using unstructured mesh topology
- interpolation errors or
- numerical and physical limits due to usage of overlapping mesh method
are redundant for the TwinMesh approach. Using structured grids from the TwinMesh software users get access to the full capability of CFD modelling available in CFD software. The high quality meshes from TwinMesh result in reliable and stable CFD simulations for gerotor pump designs at moderate model sizes and moderate calculation times for transient analysis.
Reliable CFD Analysis of Gerotor Pumps
And what can design engineers of gerotor pumps expect? CFD analysis results generated with TwinMesh and CFD software provide engineers of gerotor pumps with essential information such as:
- Velocity, pressure, and temperature fields within the working chambers and in axial and radial clearances
- Flow rates and mass flow at user defined operation points
- Torques, moments, forces and machine efficiency (CoP)
- Leakage and losses
- Pulsation behaviour of the machine
- Location and magnitude of erosion (e. g. particles, cavitation)
- Duration and magnitude of acoustic sources (emission)
TwinMesh and CFD software together make a reliable, modern, and state-of-the-art engineering tool, which allows for fast, reliable and efficient analysis and optimisation of gerotor pumps.

Better Designs
Increase machine performance, efficiency, and durability by a better understanding of complex phenomena inside your machine.
Speed & Flexibility
Reduce your time-to-market and fasten your response time to changing demands significantly by massive use of virtual prototyping.
Drive Innovation
Drive real innovation by getting deeper insight into the details of your products and their interaction with connected systems.
Reduced Costs
Reduce development and manufacturing costs by massive use of virtual product development instead of time consuming measurements on physical prototypes.
Animations of Gerotor Pump Simulations
Related blog entries
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.
The TwinMesh 2025 Release is here! Find out what’s new!
The new release of TwinMesh 2025 is available and allows the CFD simulation of more complex applications.
TwinMesh Webinar
Watch the latest TwinMesh webinar to discover how TwinMesh, in combination with Simcenter STAR-CCM+, enables accurate and reliable 3D CFD analysis of rotary positive displacement machines, including screw compressors, lobe pumps, vane pumps, wankel engines, gear pumps, progressive cavity pumps, and scroll expanders.
TwinMesh is available for these PD Machines









