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https://doi.org/10.21256/zhaw-4964| Title: | CFD modelling of pressure and shear rate in torsionally vibrating structures using ANSYS CFX and COMSOL multiphysics |
| Authors : | Brunner, Daniel Khawaja, Hassan Moatamedi, Moji Boiger, Gernot Kurt |
| Published in : | The International journal of multiphysics |
| Volume(Issue) : | 12 |
| Issue : | 4 |
| Pages : | 349 |
| Pages to: | 358 |
| Publisher / Ed. Institution : | Multi-Science Publishing |
| Issue Date: | Dec-2018 |
| License (according to publishing contract) : | CC BY 4.0: Attribution 4.0 International |
| Type of review: | Peer review (publication) |
| Language : | English |
| Subjects : | CFD model; Shear rate; ANSYS CFX; COMSOL; Torsional vibration; Viscosity measurement |
| Subject (DDC) : | 530: Physics |
| Abstract: | This paper discusses numerical methodologies to simulate micro vibrations on a nontrivial torsionally oscillating structure. The torsional structure is the tip of a viscosity-density sensor using micro vibrations to measure the fluid properties. A 2D transient simulation of the fluid domain surrounding the tip of the sensor has been conducted in ANSYS CFX and COMSOL Multiphysics software. ANSYS CFX uses a frame of reference to induce the micro vibration whereas a moving wall approach is used in COMSOL Multiphysics for the full Navier-Stokes equation as well as their linearized form. The shear rate and pressure amplitude have been compared between the different numerical approaches. The obtained results show good agreement for both pressure and shear rate amplitudes in all models. |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Computational Physics (ICP) |
| Publication type: | Article in scientific journal |
| DOI : | 10.21256/zhaw-4964 10.21152/1750-9548.12.4.349 |
| ISSN: | 1750-9548 2048-3961 |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/14286 |
| Appears in Collections: | Publikationen School of Engineering |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2018_Brunner_CFD_modelling_of_pressure_and_shear_rate_in_torsionally_vibrating.pdf | 392.58 kB | Adobe PDF |  View/Open |
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