TwinMesh Blog

Topics on Reliable CFD Simulation of Rotary PD Machines
TwinMesh™ 2019 released

TwinMesh™ 2019 released

We are pleased to anounce the release of TwinMesh™ 2019 – another big and important step in CFD based analysis and design of rotary positive displacement machines. TwinMesh™ 2019 offers developers of rotary PD machines a further improved workflow and many exciting new features. Read further for getting information about enhancements and new features in TwinMesh™ 2019.

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“The Momentum Keeps Up”

“The Momentum Keeps Up”

Good news is on your way – the success of the revolutionary meshing solution TwinMesh™ continues and grows more and more! Scientific papers, conference presentations, success stories, validation projects, and new reference customers – a lot of things happened during the last couple of months and it is a great success.

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Preview of Mesh Interpolation and Non-Reflective Boundary Conditions in TwinMesh™ 2019

Preview of Mesh Interpolation and Non-Reflective Boundary Conditions in TwinMesh™ 2019

The next preview of new features in TwinMesh™ 2019: 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.

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Preview of Non-Reflective Boundary Conditions in TwinMesh™ 2019

Preview of Non-Reflective Boundary Conditions in TwinMesh™ 2019

Preview on new features in TwinMesh™ 2019: 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.

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TwinMesh 2017 released

TwinMesh 2017 released

New Release TwinMesh 2017 is now available. New features of TwinMesh 2017 include vane pumps and orbital motor as new machine types, variable pitch for screw machines, many function and GUI improvements and a tet grid generator for axial gaps. Click here to find out what is new in TwinMesh 2017!

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TwinMesh helps developing waste heat recovery system

TwinMesh helps developing waste heat recovery system

With its working principle of a positive displacement machine the scroll expander is a real challenge for 3D CFD. Luckily, BOSCH knows where to look for experts in that field. CFX Berlin provides the right tools, and experience to take such a challenge. Find here a presentation on numerical simulation of a scroll machine using TwinMesh and ANSYS CFX.

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TwinMesh and its customer numbers accelerate

TwinMesh and its customer numbers accelerate

2016 has been an exciting year for us. With a steady increase in customer numbers we are very happy to welcome our latest TwinMesh users: Danfoss and Scherzinger Pump Technology. Moreover, we would like to share what Eaton has to say about TwinMesh and CFX.

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