Time-periodic thermal boundary effects on porous media saturated with nanofluids : CGLE model for oscillatory mode

• Autorzy: Kiran Palle , Manjula Sivaraj H.

Identyfikatory

DOI

10.2478/adms-2022-0022

• Języki publikacji: EN

Abstrakty

EN

The stability of nonlinear nanofluid convection is examined using the complex matrix differential operator theory. With the help of finite amplitude analysis, nonlinear convection in a porous medium is investigated that has been saturated with nanofluid and subjected to thermal modulation. The complex Ginzburg-Landau equation (CGLE) is used to determine the finite amplitude convection in order to evaluate heat and mass transfer. The small amplitude of convection is considered to determine heat and mass transfer through the porous medium. Thermal modulation of the system is predicted to change sinusoidally over time, as shown at the boundary. Three distinct modulations IPM, OPM, and LBMOhave been investigated and found that OPM and LBMO cases are used to regulate heat and mass transfer. Further, it is found that modulation frequency (ωf varying from 2 to 70) reduces heat and mass transfer while modulation amplitude (δ1varying from 0.1 to 0.5 ) enhances both.

Słowa kluczowe

EN

nanofluid convection; transport analysis; CGLE; complex Ginzburg-Landau equation; numerical performance; thermal modulation; nonlinear theory

PL

konwekcja nanocieczy; analizy transportowe; równanie Ginzburga-Landaua; modulacja termiczna; teoria nieliniowa

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2022
• Tom: Vol. 22, nr 4(74)
• Strony: 98--116
• Opis fizyczny: Bibliogr. 54 poz., rys., tab., wykr.

Twórcy

autor

Kiran Palle

• Department of Mathematics, Chaitanya Bharathi Institute of Technology, Hyderabad, Telangana-500075, India

autor

Manjula Sivaraj H.

• Department of Mathematics, Vignan’s Foundation for Science, Technology and Research, Vadlamudi 522 213, Guntur, India

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).