TwinMesh

A revolutionary meshing solution for reliable CFD analysis of rotary positive displacement machines

Thanks to TwinMesh software, computational fluid dynamics (CFD) has become an efficient development tool for the first time also for manufacturers of rotary positive displacement machines.

An important prerequisite for reliable CFD simulations, is the creation of high-quality meshes that mimic the computational domain as precisely as possible, without increasing too much the model number of elements.

The creation of such computational domain poses two significant challenges for engineers when working with rotary pumps, gear pumps and screw compressors. The complexity of the geometry of rotary positive displacement machines results from the flow volumes in the working chambers which vary over time. The second challenge are the extremely small gaps between the rotors and between the rotors and the housing.

With the help of meshing software TwinMesh, the time-varying flow volumes and gaps in the working space of volumetric machines can be automatically meshed with high-quality structured hexahedral meshes, for a number of angular positions specified by the user. By using a smoothing algorithm contained in TwinMesh, the node distributions always remain homogeneous, and the interior element angle remains nearly orthogonal.

TwinMesh provides also special templates for all typical displacement machines, taking care of the actual simulation setup, monitoring and post-processing in ANSYS CFX simply pressing a button.

TwinMesh is a product of CFX Berlin Software GmbH.

CFD mesh and transient simulation of an external gear pump
CFD transient simulation of a gerotor pump

Main Benefits

  Enabling technology for CFD simulation of rotary positive displacement machines (RPDM)

  Significantly reduce user effort and CPU time for the simulation of RPDM

  Best technology and practices implemented for fast, reliable and efficient simulation

  Accurate and reliable product durability, performance and efficiency prediction

  Drive real innovation and optimization of rotary positive displacement machines

Request a free demo

Ask the expert

Send your technical questions to our experts!

Connect you with an EnginSoft expert who can provide a reliable answer to your technical question or recommend a proven solution.

Insights

CASE STUDY

Drag Optimization of the E-1 Electric Racecar

A FIA E-1 class racecar was being developed by Brigham Young University to set a world speed record for Electric Vehicles

The car is designed to race on the ultra-flat Salt Flats in Bonneville, Utah. The racecar weighs less than 500kg so increasing the downforce was critical. Reducing aerodynamic drag was also critical due to the power requirements of the racecar.

cfd automotive

Read More  

NEWSROOM
Stay connected with our news, analysis and trends from our experts

 

Read more  

MEDIA CENTER
Scroll through our Media Center to view all the videos, video-tutorials and recorded webinars

Media Center  

CASE STUDY

Immergas: Using CAE to improve energy efficiency, reduce emissions and costs, and shorten time-to-market

Interview with engineer Luca Cavalli, from the advanced engineering team at Immergas

In this interview, engineer Luca Cavalli, of Immergas’ advanced engineering team, discusses the technical and business benefits the company has realised since first introducing Computer-Aided Engineering (CAE) technologies into its R&D department in 1997.

ansys appliances cfd mechanics

Read More  

Find out more

Our Expertise in TwinMesh

CASE STUDY

CFD-Driven Design of a Ventilation System for Kitchen Hoods

Optimized design achieves energy efficiency and cost containment objectives

This article presents a study that the Elica Group commissioned from EnginSoft to support it engineering team in redesigning the ventilation system of its “Tilly” kitchen hood model

appliances ansys cfd

Read More  

CASE STUDY

Oil flow simulation in a reciprocating engine at Honda R&D

Particleworks, an innovative particle method simulation tool, playing an important role in previously-unattainable simulation problems

In this technical article, EnginSoft and Prometech explain how they executed a highly complex computational simulation on the fluid-structure interaction of the oil flow inside a reciprocating engine, on behalf of Honda R&D.

automotive cfd particleworks

Read More  

CASE STUDY

High Quality Printing with CFD

Simulation allows engineers to improve print quality, ensure operator safety and contain energy consumption

In this article, Uteco describes how it applied Computational Fluid Dynamics (CFD) to assist the design and improvement of its printing machines.

cfd ansys mechanics

Read More