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"The course was well organized, the trainers were well-prepared: it will definitely help me in my work" (P. Jafarian, Vicura)
News
How to efficiently model free-surface using CFD?
One of FLOW-3D's differentiating features is the way its mesh is defined. As opposed to many other software, the mesh on FLOW-3D doesn’t follow the geometry of the object of study, but is defined according to the coordinate system chosen by the user. The size and number of cells is still easily adjusted through the GUI.
Moreover, the interface between two fluids is modelled using the Volume of Fluid method, which indicates for each cell the volume of fluid it contains. At the interface between two fluids, each cell also contains the information about the direction towards which the surface of the fluid is oriented. This method allows for a sharp tracking of the free surface.
The advantage of using this method is that it doesn’t require much more computational time or power, and that it enables a precise modeling of the free surface, even when it is very agitated and undergoing radical changes.
Free Surface Flow Modeling | FLOW-3D
FLOW-3D will be showcased in an upcoming 1 day workshop (12/10/18) at the 2018 Fish Passage conference in Albury, Australia. The first portion of this course...How to reduce the powertrain component’s weight? -
Comment réduire le poids du groupe motopropulseur? -
Come ridurre il peso dei componenti powertrain?
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Claudio Mus, R&D Director at Endurance Overseas, presented at the #FLOW3DEUC19 the simulations he made in order to evaluate the importance of the thickness of the components on cavitation risk, air entrainment and liquid metal velocity during casting. The video below displays the risks of cavitation and thus of erosion risks of the mold at different thicknesses. We actually see that reducing the thickness and consequently the weight also improves the casting process and the final result.
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Claudio Mus, Directeur en R&D chez ENDURANCE, a présenté au #FLOW3DEUC19 les simulations qu’il a effectuées afin d’évaluer l’importance de l’épaisseur du composant sur le risque de caviation, sur l’entrainement d’air ainsi que sur la vitesse du métal en fusion lors du moulage. La vidéo ci-dessous montre les différents risques de caviation, et donc d’érosion, du moule en fonction de l’épaisseur. On remarque dans ce cas que diminuer l’épaisseur contribue non seulement à réduire le poids mais aussi à améliorer le processus de moulage ainsi que le résultat final.
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Claudio Mus, Direttore R&D di ENDURANCE, ha presentato le simulazioni da lui effettuate per valutare l'importanza dello spessore del componente sul rischio di cavitazione, sul trascinamento dell'aria e sulla velocità del metallo fuso durante la colata. Il video qui sotto mostra i diversi rischi di cavitazione, e quindi di erosione, dello stampo a seconda dello spessore. Si può notare che la riduzione dello spessore in questo caso non solo contribuisce a ridurre il peso, ma anche a migliorare il processo di stampaggio e il risultato finale.
🇬🇧 A fun simulation based on The Slow Mo Guys’s video: www.youtube.com/watch?v=iWKFPTgkpXo&t=105s
Learn more about it by reading the article: www.xceng.com/en/2019/07/04/vertical-spike-wave/
🇫🇷 Une simulation amusante basée sur la vidéo des Slow Mo Guys: www.youtube.com/watch?v=iWKFPTgkpXo&t=105s
Apprenez-en plus en lisant cet article : www.xceng.com/fr/2019/07/04/vertical-spike-wave/
🇮🇪 Una divertente simulazione basata sul video degli Slow Mo Guys: www.youtube.com/watch?v=iWKFPTgkpXo&t=105s
Scopri di più leggendo questo articolo: www.xceng.com/it/2019/07/04/vertical-spike-wave/
#GIFA19 was once again an enriching and promissing experience. We were happy to have you at our stand and hope to see you soon! Thank you all!
We thank FLOW-3D Taiwan 泓崴科技 for the pictures
Is it possible to determine affecting factors of an experiment using CFD? -
Est-il possible de déterminer les facteurs d’influence d’une expérience en utilisant la MNF (Mécanique des Fluides Numérique)? -
È possibile determinare i fattori di influenza di un esperimento che utilizza la CFD?
[English]
We are pleased to share with you a part of the work Mr. Timelli presented at the #FLOW3DEUC19 about the fluidity of alloys. He used #FLOW3D in order to find the variables affecting alloy fluidity tests, which could not be done simply physically.
If you interested in the multiple capacities proposed by FLOW-3D Cast and IMPROVEit, we would be glad to have you at #GIFA19 Hall 12 | E34 next week to discuss them in more detail.
[Français]
Nous sommes ravi de partager avec vous une partie du travail que M. Timelli a présenté au #FLOW3DEUC19 à propos de la fuidité des alliages. Il a utilisé #FLOW3DCast afin de déterminer les variables influençant les test de fluidité, ce qui ne pouvait être fait de manière simple physiquement.
Si vous êtes interessé par les multiples autres capacités proposées par Flow-3D Cast ou IMPROVEit, nous serions enchanté de vous accueillir au E34 | Hall 12 à #GIFA19 la semaine prochaine afin d’en discuter plus en détail.
[Italiano]
Siamo lieti di condividere con voi una parte del lavoro che il signor Timelli ha presentato al #FLOW3DEUC19 sulla fluidità delle leghe. Ha usato #FLOW3D per trovare le variabili che influenzano le prove di fluidità delle leghe, cosa che non poteva essere fatta solo fisicamente.
Se siete interessati alle molteplici capacità proposte da FLOW-3D Cast e IMPROVEit, saremo lieti di avervi al #GIFA19 Hall 12 | E34 la prossima settimana per discuterne più in dettaglio.
#cfd #foundry #casting #flow3d #flow3dcast #fluidity #alloy #GIFA19
