TwinMesh BlogTopics on Reliable CFD Simulation of Rotary PD Machines
TwinMesh™ 2023 automatically generates high quality structured meshes of the rotating parts of PD machines and eliminates common numerical limits.
In this example you can see pressure distribution as contour plot on the rotor surfaces and on a cut plane on the left hand side; additionally, velocity at inlets and near the outlet is shown by streamlines in purple with a length of 2.5 ms.
We are pleased to announce the release of TwinMesh™ 2022. This brand new release of TwinMesh™ includes many new features that further improve the quality of meshes for complex geometries. Read further for getting information about enhancements and new features in TwinMesh™ 2022.
The success of the revolutionary meshing solution TwinMesh™ continues and grows more and more! TwinMesh customers in industry and science show their exiting papers, success stories and validation projects. A lot of things happened during the last couple of months and it is a great success.
Next free TwinMesh webinar, March 30, 2022 at 2pm (CEST): find out more about how TwinMesh and Ansys CFD 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!
We are pleased to announce that TwinMesh by CFX Berlin will be exhibitor at NAFEMS World Congress 2021 from October 25-29 in Salzburg, Austria. The NAFEMS World Congress covers every aspect of CFD, FEA and multiphysics engineering analysis and simulation.
This video by CFX Berlin is a webinar recording from 10th June 2021 and it demonstrates how to perfom reliable CFD analysis of rotating positive displacement machines using TwinMesh™ and Ansys CFD.
In this webinar on September 29th 2020 you can learn about the state of the art in terms of engineering simulation tools, together with the best practices and methodologies used by market-leaders for the design and development of: compressors, centrifugal pumps (centrifugal, axial, single / multi impeller, etc.), and volumetric machines (pistons, lobes, gears, etc.).
Watch here new and interesting TwinMesh™ success stories of happy users, held at the International TwinMesh™ Users Summit at the CAE Conference in Vicenza, Italy
The first International TwinMesh™ Users Summit will take place on 28th and 29th October 2019 at the TwinMesh™ exhibition booth of the International CAE Conference in Vicenza, Italy. Come and meet us and other TwinMesh™ users!
During the whole conference, we answered a lot of questions at our stand together with Zhenya Yang from our TwinMesh channel partner PeraGlobal. In the technical sessions, we gave three presentations on TwinMesh applications
We are pleased to announce that Kolektor is presenting their latest novelty, the core pump, at the well-known CTI Symposium which takes place from 13-16 May 2019 in Novi, Michigan, USA. On their LinkedIn profile Kolektor states: "Main pump...
International researchers from KITECH in Korea present their latest work using TwinMesh™ at the 29th IAHR Symposium on Hydraulic Machinery and Systems
In their paper “Preliminary Design and Performance Analysis of a Positive Displacement Hydraulic Turbine” Arihant Sonawat supervised by Dr. Jin-Hyuk Kim and their colleagues looked into the causes of pulsations in torque, pressure, and flow rate due to the...
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.
Preview on new features in TwinMesh™ 2019: CFD simulation of a SRM screw compressor with heating of rotor and casing solids with ANSYS CFX. We implemented User Fortran routines in TwinMesh 2019 that connect non-overlapping parts of the fluid-fluid interfaces to the interior solid surfaces to account for temperature and heat flux exchange.
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.
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.
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.
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!