Numerical Simulation of Nanofluid Heat Transfer in a Tube Equipped with Twisted Tape Using the Eulerian-Lagrangian Two-Phase Model

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SHEIKHZADEH GH.A.; Nazififard m.; Maddahian R.; KAZEMI KH.

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Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:1 Page(s): 53-62

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Title

Numerical Simulation of Nanofluid Heat Transfer in a Tube Equipped with Twisted Tape Using the Eulerian-Lagrangian Two-Phase Model

Author(s)

SHEIKHZADEH GH.A. | Nazififard m. | Maddahian R. | KAZEMI KH. | Issue Writer Certificate

Keywords

Tube With Twisted TapeQ1

NanofluidQ1

Turbulent FlowQ1

Forced Convection Heat TransferQ1

Two-Phase Eulerian-Lagrangian ModelQ1

Abstract

Today, increasing the efficiency and optimization of energy systems in terms of economic and environmental conditions is of particular importance. So far, several methods have been proposed to increase the heat transfer in thermal systems, including the use of Nanofluids and types of fluid flow turbulators. In this research, the application of both Nanofluid and twisted tape to improve the heat transfer coefficient were numerically investigated. Different turbulence models were used to simulate fluid turbulence. The results showed that increasing the nanoparticle volume fraction, reducing the twisting ratio, and increasing the Reynolds number resulted in an increase in heat transfer. By reducing the twisting ratio from 15 to 5, the heat transfer rate increases from 8-16%. With rising Reynolds number from 10, 000 to 20, 000, maximum temperature differences decreases by 4. 5%. Moving downstream of the flow, the difference between the maximum temperature of the sections decreases. Increasing the heat transfer and intensifying the effects of the twisted tape to downward are the reasons for this decline.

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APA: Copy

SHEIKHZADEH, GH.A., Nazififard, m., Maddahian, R., & KAZEMI, KH.. (2019). Numerical Simulation of Nanofluid Heat Transfer in a Tube Equipped with Twisted Tape Using the Eulerian-Lagrangian Two-Phase Model. MODARES MECHANICAL ENGINEERING, 19(1 ), 53-62. SID. https://sid.ir/paper/178063/en

Vancouver: Copy

SHEIKHZADEH GH.A., Nazififard m., Maddahian R., KAZEMI KH.. Numerical Simulation of Nanofluid Heat Transfer in a Tube Equipped with Twisted Tape Using the Eulerian-Lagrangian Two-Phase Model. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(1 ):53-62. Available from: https://sid.ir/paper/178063/en

IEEE: Copy

GH.A. SHEIKHZADEH, m. Nazififard, R. Maddahian, and KH. KAZEMI, “Numerical Simulation of Nanofluid Heat Transfer in a Tube Equipped with Twisted Tape Using the Eulerian-Lagrangian Two-Phase Model,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 1 , pp. 53–62, 2019, [Online]. Available: https://sid.ir/paper/178063/en

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