Hydrothermal and Entropy Investigation of Nanofluid Natural Convection in a Lid-Driven Cavity Concentric with an Elliptical Cavity with a Wavy Boundary Heated from Below

Aiman Alshare; Aissa Abderrahmane; Kamel Guedri; Obai Younis; Muhammed Fayz-Al-Asad; Hafiz Muhammed Ali; Wael Al-Kouz

doi:10.3390/nano12091392

Hydrothermal and Entropy Investigation of Nanofluid Natural Convection in a Lid-Driven Cavity Concentric with an Elliptical Cavity with a Wavy Boundary Heated from Below

Aiman Alshare, Aissa Abderrahmane, Kamel Guedri, Obai Younis, Muhammed Fayz-Al-Asad, Hafiz Muhammed Ali, Wael Al-Kouz

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

This work investigates mixed convection in a lid-driven cavity. This cavity is filled with nanofluid and subjected to a magnetic field. The concentric ovoid cavity orientation (γ), 0–90^◦, and undulation number (N), 1–4, are considered. The Richardson number (Ri) varies between 1 and 100. The nanofluid volume fraction (ϕ) ranges between 0 and 0.08%. The effect of the parameters on flow, thermal transport, and entropy generation is illustrated by the stream function, isotherms, and isentropic contours. Heat transfer is augmented and the Nusselt number rises with higher Ri, γ, N, and ϕ. The simulations show that the heat transfer is responsible for entropy generation, while frictional and magnetic effects are marginal.

Original language	English
Article number	1392
Journal	Nanomaterials
Volume	12
Issue number	9
DOIs	https://doi.org/10.3390/nano12091392
State	Published - 1 May 2022

Keywords

entropy generation
lid-driven cavity
mixed convection
nanofluid

Access to Document

10.3390/nano12091392

Cite this

@article{780a62297b0f4f9da5934531666363f1,

title = "Hydrothermal and Entropy Investigation of Nanofluid Natural Convection in a Lid-Driven Cavity Concentric with an Elliptical Cavity with a Wavy Boundary Heated from Below",

abstract = "This work investigates mixed convection in a lid-driven cavity. This cavity is filled with nanofluid and subjected to a magnetic field. The concentric ovoid cavity orientation (γ), 0–90◦, and undulation number (N), 1–4, are considered. The Richardson number (Ri) varies between 1 and 100. The nanofluid volume fraction (ϕ) ranges between 0 and 0.08\%. The effect of the parameters on flow, thermal transport, and entropy generation is illustrated by the stream function, isotherms, and isentropic contours. Heat transfer is augmented and the Nusselt number rises with higher Ri, γ, N, and ϕ. The simulations show that the heat transfer is responsible for entropy generation, while frictional and magnetic effects are marginal.",

keywords = "entropy generation, lid-driven cavity, mixed convection, nanofluid",

author = "Aiman Alshare and Aissa Abderrahmane and Kamel Guedri and Obai Younis and Muhammed Fayz-Al-Asad and Ali, \{Hafiz Muhammed\} and Wael Al-Kouz",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2022",

month = may,

day = "1",

doi = "10.3390/nano12091392",

language = "English",

volume = "12",

journal = "Nanomaterials",

issn = "2079-4991",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "9",

}

TY - JOUR

T1 - Hydrothermal and Entropy Investigation of Nanofluid Natural Convection in a Lid-Driven Cavity Concentric with an Elliptical Cavity with a Wavy Boundary Heated from Below

AU - Alshare, Aiman

AU - Abderrahmane, Aissa

AU - Guedri, Kamel

AU - Younis, Obai

AU - Fayz-Al-Asad, Muhammed

AU - Ali, Hafiz Muhammed

AU - Al-Kouz, Wael

PY - 2022/5/1

Y1 - 2022/5/1

N2 - This work investigates mixed convection in a lid-driven cavity. This cavity is filled with nanofluid and subjected to a magnetic field. The concentric ovoid cavity orientation (γ), 0–90◦, and undulation number (N), 1–4, are considered. The Richardson number (Ri) varies between 1 and 100. The nanofluid volume fraction (ϕ) ranges between 0 and 0.08%. The effect of the parameters on flow, thermal transport, and entropy generation is illustrated by the stream function, isotherms, and isentropic contours. Heat transfer is augmented and the Nusselt number rises with higher Ri, γ, N, and ϕ. The simulations show that the heat transfer is responsible for entropy generation, while frictional and magnetic effects are marginal.

AB - This work investigates mixed convection in a lid-driven cavity. This cavity is filled with nanofluid and subjected to a magnetic field. The concentric ovoid cavity orientation (γ), 0–90◦, and undulation number (N), 1–4, are considered. The Richardson number (Ri) varies between 1 and 100. The nanofluid volume fraction (ϕ) ranges between 0 and 0.08%. The effect of the parameters on flow, thermal transport, and entropy generation is illustrated by the stream function, isotherms, and isentropic contours. Heat transfer is augmented and the Nusselt number rises with higher Ri, γ, N, and ϕ. The simulations show that the heat transfer is responsible for entropy generation, while frictional and magnetic effects are marginal.

KW - entropy generation

KW - lid-driven cavity

KW - mixed convection

KW - nanofluid

UR - http://www.scopus.com/inward/record.url?scp=85129798046&partnerID=8YFLogxK

U2 - 10.3390/nano12091392

DO - 10.3390/nano12091392

M3 - Article

AN - SCOPUS:85129798046

SN - 2079-4991

VL - 12

JO - Nanomaterials

JF - Nanomaterials

IS - 9

M1 - 1392

ER -

Hydrothermal and Entropy Investigation of Nanofluid Natural Convection in a Lid-Driven Cavity Concentric with an Elliptical Cavity with a Wavy Boundary Heated from Below

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this