Numerical simulation of mixing fluid with ferrofluid in a magnetic field using the meshless SPH method

Abdolahzadeh, Mohsen (avtor), Tayebi, Ali (avtor), Ahmadinejad, Mehrdad (avtor), Šarler, Božidar (avtor)

In this study, a numerical investigation of the effect of different magnetic fields on ferrofluid-fluid mixing processes in a two-dimensional microchannel is performed An improved version of smoothed particle hydrodynamics, SPH, by shifting particle algorithm and dummy particle boundary condition, is implemented to solve numerical continuity, ferrohydrodynamics-based momentum and mass transfer equations. SPH is formulated through the irregular arrangement of the nodes where the fields are approximated using the fifth-order Wendland kernel function. After validating the computational approach, the influence of the number (from one to three) of parallel electrical wires positioned perpendicular to the microchannel on the mixing efficiency is studied for the first time. It has originally been found that the mixing efficiency highly non-linearly depends on the Reynolds number and the number of electrical wires. For Re ≤20, the mixing efficiency is almost the same for two and three electrical wires and about two times higher than one electrical wire. For Re ≥ 80, the mixing efficiency of three wires is much higher than one and two electrical wires. Optimum performance of the micromixer is achieved with three electrical wires, since the mixer performs well on a broader range of Re than the other two studied cases. The outcomes of this study, obtained by a meshless method, are important for the industrial design of micromixers.

• Jezik: Angleški jezik
• Ključne besede: mixing process, ferrofluids, magnetic field, active micromixers, SPH method
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Datum objave: 01.10.2022
• Leto izida: 2022
• Št. strani: 12 str.
• Številčenje: Vol. 7, iss. 11, art. 341
• PID: 20.500.12556/RUL-142364
• UDK: 532:66.02:519.62
• ISSN pri članku: 2311-5521
• DOI: 10.3390/fluids7110341
• COBISS.SI-ID: 127806979
• Datum objave v RUL: 03.11.2022

Gradivo je del revije

• Naslov: Fluids
• Skrajšan naslov: Fluids
• Založnik: MDPI AG
• ISSN: 2311-5521
• COBISS.SI-ID: 525935385

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: mešanje, ferofluidi, magnetno polje, mikromešala, SPH metoda

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0162
• Naslov: Večfazni sistemi

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J2-4477
• Naslov: Razvoj inovativnih brezmrežnih metod za večfizikalne in večnivojske simulacije vrhunskih tehnologij