Simulations With a Thermodynamically Consistent Model for Convective Transport in Nanofluids

Bänsch E, Faghih-Naini S (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Journal of Heat Transfer-Transactions of the Asme American Society of Mechanical Engineers (ASME)

Book Volume: 143

Article Number: ARTN 122501

Journal Issue: 12

DOI: 10.1115/1.4051601

Abstract

A nonhomogeneous model is used to simulate convective transport in nanofluids. The model is a thermodynamically consistent version of the celebrated Buongiorno model. We study two situations in detail: flow through a pipe that is heated periodically in time at one lateral wall and a lid-driven cavity with a triangular heat source placed within. Both studies reveal the mechanisms of enhanced heat transfer by nanofluids through thermophoresis: the temperature gradient at the wall leads to a reduced concentration of nanoparticles. This reduces the concentration-dependent viscosity of the suspension close to the boundary, which in turn leads to a stronger convective transport.

Authors with CRIS profile

Eberhard Bänsch Lehrstuhl für Angewandte Mathematik (Wissenschaftliches Rechnen) Sara Faghih-Naini Lehrstuhl für Informatik 10 (Systemsimulation)

How to cite

APA:

Bänsch, E., & Faghih-Naini, S. (2021). Simulations With a Thermodynamically Consistent Model for Convective Transport in Nanofluids. Journal of Heat Transfer-Transactions of the Asme, 143(12). https://dx.doi.org/10.1115/1.4051601

MLA:

Bänsch, Eberhard, and Sara Faghih-Naini. "Simulations With a Thermodynamically Consistent Model for Convective Transport in Nanofluids." Journal of Heat Transfer-Transactions of the Asme 143.12 (2021).

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