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Natural Convection of Nanofluid Inside an Enclosure Having Inner Rhombus Object.

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Title: Natural Convection of Nanofluid Inside an Enclosure Having Inner Rhombus Object.
Authors: Alhazmy, Majed1 (AUTHOR) mhazmy@kau.edu.sa, Alkhamis, Nawaf1 (AUTHOR), Alqadi, Ibraheem2 (AUTHOR), Albahi, Ali2 (AUTHOR)
Source: Heat Transfer Engineering. 2026, Vol. 47 Issue 10, p906-919. 14p.
Subject Terms: *Heat transfer, *Nanofluids, *Geometric shapes, *Rayleigh number, *Nusselt number, *Natural heat convection
Abstract: This article presents the result of a numerical study to evaluate the heat transfer rate from two triangular objects placed inside a square enclosure compared to the heat transfer rate from a single rhombus-shaped object. The two triangular objects resulted from dividing the rhombus object along its vertical axis. Therefore, the volume of the two triangular shapes equals the volume of a single rhombus. Dividing the rhombus object increases the heat transfer surface area while placing the two produced triangular objects at a distance apart creates a new pathway for the fluid to move between them. This arrangement increases the heat transfer rate from the objects and presents a way to enhance the cooling of high-temperature systems. Using nanofluid provides an additional heat transfer enhancement. Using Al2O3/water nanofluid increases the Nusselt number by 75% above the level achieved using pure water. Moreover, dividing the rhombus object into two triangular bodies and using Al2O3 nanofluid increases the highest flow velocity by 160% and increases the Nusselt number by 288% depending on Rayleigh number and central spacing. This would allow faster operation of electronic components and help reduce the system's sizes in general. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 192981915
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Natural Convection of Nanofluid Inside an Enclosure Having Inner Rhombus Object.
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  Data: <searchLink fieldCode="AR" term="%22Alhazmy%2C+Majed%22">Alhazmy, Majed</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mhazmy@kau.edu.sa</i><br /><searchLink fieldCode="AR" term="%22Alkhamis%2C+Nawaf%22">Alkhamis, Nawaf</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alqadi%2C+Ibraheem%22">Alqadi, Ibraheem</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Albahi%2C+Ali%22">Albahi, Ali</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Heat+Transfer+Engineering%22">Heat Transfer Engineering</searchLink>. 2026, Vol. 47 Issue 10, p906-919. 14p.
– Name: Subject
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  Data: *<searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br />*<searchLink fieldCode="DE" term="%22Nanofluids%22">Nanofluids</searchLink><br />*<searchLink fieldCode="DE" term="%22Geometric+shapes%22">Geometric shapes</searchLink><br />*<searchLink fieldCode="DE" term="%22Rayleigh+number%22">Rayleigh number</searchLink><br />*<searchLink fieldCode="DE" term="%22Nusselt+number%22">Nusselt number</searchLink><br />*<searchLink fieldCode="DE" term="%22Natural+heat+convection%22">Natural heat convection</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This article presents the result of a numerical study to evaluate the heat transfer rate from two triangular objects placed inside a square enclosure compared to the heat transfer rate from a single rhombus-shaped object. The two triangular objects resulted from dividing the rhombus object along its vertical axis. Therefore, the volume of the two triangular shapes equals the volume of a single rhombus. Dividing the rhombus object increases the heat transfer surface area while placing the two produced triangular objects at a distance apart creates a new pathway for the fluid to move between them. This arrangement increases the heat transfer rate from the objects and presents a way to enhance the cooling of high-temperature systems. Using nanofluid provides an additional heat transfer enhancement. Using Al2O3/water nanofluid increases the Nusselt number by 75% above the level achieved using pure water. Moreover, dividing the rhombus object into two triangular bodies and using Al2O3 nanofluid increases the highest flow velocity by 160% and increases the Nusselt number by 288% depending on Rayleigh number and central spacing. This would allow faster operation of electronic components and help reduce the system's sizes in general. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=192981915
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/01457632.2025.2489705
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 906
    Subjects:
      – SubjectFull: Heat transfer
        Type: general
      – SubjectFull: Nanofluids
        Type: general
      – SubjectFull: Geometric shapes
        Type: general
      – SubjectFull: Rayleigh number
        Type: general
      – SubjectFull: Nusselt number
        Type: general
      – SubjectFull: Natural heat convection
        Type: general
    Titles:
      – TitleFull: Natural Convection of Nanofluid Inside an Enclosure Having Inner Rhombus Object.
        Type: main
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            NameFull: Alhazmy, Majed
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            NameFull: Alkhamis, Nawaf
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            NameFull: Alqadi, Ibraheem
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            NameFull: Albahi, Ali
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          Dates:
            – D: 15
              M: 05
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
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              Value: 01457632
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              Value: 47
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              Value: 10
          Titles:
            – TitleFull: Heat Transfer Engineering
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