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## Stochastic modelling of nanofluids using the fast Boundary-Domain Integral Method

Ravnik, Jure; Šušnjara, Anna; Poljak, Dragan; Tibaut, Jan; Cvetković, Mario
Stochastic modelling of nanofluids using the fast Boundary-Domain Integral Method // Engineering analysis with boundary elements, 107 (2019), 185-197 doi:10.1016/j.enganabound.2019.07.014 (nije recenziran, članak, znanstveni)

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Naslov
Stochastic modelling of nanofluids using the fast Boundary-Domain Integral Method

Autori
Ravnik, Jure ; Šušnjara, Anna ; Poljak, Dragan ; Tibaut, Jan ; Cvetković, Mario

Izvornik
Engineering analysis with boundary elements (0955-7997) 107 (2019); 185-197

Ključne riječi
boundary-domain integral method ; velocity-vorticity formulation ; nanofluids ; fluid flow ; heat transfer ; stochastic collocation method ; sensitivity analysis

Sažetak
In this paper, we couple a numerical method aimed at simulation of flow and heat transfer of nanofluids with stochastic modelling of input and material parameters. In order to simulate nanofluids, an in-house numerical method was developed, based on the solution of 3D velocity–vorticity formulation of Navier–Stokes equations. A fast Boundary-Domain Integral Method has been employed to solve the governing equations and set up the deterministic flow and heat transfer solver. The developed algorithm is used to simulate natural convection of a nanofluid in a closed cavity. The uncertainty present in the input parameters is propagated to the output of interest via the Stochastic Collocation Method. The stochastic mean, variance, and higher-order moments of the output values are presented. The non-intrusive nature of the Stochastic Collocation Method facilitates the previously validated deterministic code to remain unchanged. The stochastic analysis reveals that the uncertainty of input parameters influences the output results most in the areas where high flow field gradients appear.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Strojarstvo

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split

Profili:

Anna Šušnjara (autor)

Mario Cvetković (autor)

Dragan Poljak (autor)

#### Citiraj ovu publikaciju

Ravnik, Jure; Šušnjara, Anna; Poljak, Dragan; Tibaut, Jan; Cvetković, Mario
Stochastic modelling of nanofluids using the fast Boundary-Domain Integral Method // Engineering analysis with boundary elements, 107 (2019), 185-197 doi:10.1016/j.enganabound.2019.07.014 (nije recenziran, članak, znanstveni)
Ravnik, J., Šušnjara, A., Poljak, D., Tibaut, J. & Cvetković, M. (2019) Stochastic modelling of nanofluids using the fast Boundary-Domain Integral Method. Engineering analysis with boundary elements, 107, 185-197 doi:10.1016/j.enganabound.2019.07.014.
@article{article, year = {2019}, pages = {185-197}, DOI = {10.1016/j.enganabound.2019.07.014}, keywords = {boundary-domain integral method, velocity-vorticity formulation, nanofluids, fluid flow, heat transfer, stochastic collocation method, sensitivity analysis}, journal = {Engineering analysis with boundary elements}, doi = {10.1016/j.enganabound.2019.07.014}, volume = {107}, issn = {0955-7997}, title = {Stochastic modelling of nanofluids using the fast Boundary-Domain Integral Method}, keyword = {boundary-domain integral method, velocity-vorticity formulation, nanofluids, fluid flow, heat transfer, stochastic collocation method, sensitivity analysis} }

#### Časopis indeksira:

• Current Contents Connect (CCC)
• Web of Science Core Collection (WoSCC)
• Science Citation Index Expanded (SCI-EXP)
• SCI-EXP, SSCI i/ili A&HCI
• Scopus

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