TwinMesh for Reliable CFD Analysis of Gerotor PumpsCombining TwinMesh and ANSYS CFX 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 novel software TwinMesh real virtual product development is now available for gerotor pumps! TwinMesh combined with ANSYS CFX 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 ANSYS CFX. 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 ANSYS CFX 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 ANSYS CFX 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.
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 real innovation by getting deeper insight into the details of your products and their interaction with connected systems.
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
Example for priming, pressure distribution and velocities
Moving meshes generated by TwinMesh
Contact us for more information or book a free webinar
Related blog entries
The next preview of new features in TwinMesh 2018: we implemented a mesh interpolation method in User Fortran. So far, the time step size of the CFD simulation has to be set according to the desired revolution speed and the prescribed angle increment of the pre-generated meshes from TwinMesh. Now it is possible to set an arbitrary time step size, and the corresponding mesh is calculated with a spline interpolation between the pre-generated meshes at run-time.read more
Preview on new features in TwinMesh 2018: we have implemented non-reflective boundary conditions (NRBC) in ANSYS CFX via User Fortran in a stable and robust way so that they can be used for positive displacement compressors instead of the standard openings which are reflective (RBC). While RBC lead to standing waves, especially at pressure side with mass flow strongly pulsating and even flow reversal, NRBC allow pressure fluctuations from pressure port to travel to the outlet and leave there without any artificial reflections so that mass flow is more uniform and realistic.read more
Next free TwinMesh webinar on 3rd of July 2018 at 3pm (CEST): find out more about how TwinMesh and ANSYS CFX allow for reliable 3D CFD analysis of rotary positive displacement machines such as screw compressors, lobe pumps, vane pumps, Wankel engines, gear pumps, progressive cavity pumps, or scroll expanders!read more