Steady-State Numerical Solution of the Navier-Stokes and Energy Equations around a Horizontal Cylinder at Moderate Reynolds Numbers from 100 to 500

Ahmad, Raza

doi:10.1080/01457639608939866

Cited by 78 publications

(41 citation statements)

References 153 publications

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“…Furthermore, Ahmad [8] did a bibliographic work and a numerical effort to present the dependence of the drag coefficient and thermal field with Reynolds number for flow over a single cylinder. Mandhani et al [9] used a numerical model to extract results for the local heat transfer characteristics of the flow over a circular tube bundle for a wide range of Prandtl number.…”

Section: Fig 1 the Ira Aero Enginementioning

confidence: 99%

Investigation of the thermal efficiency of a staggered elliptic-tube heat exchanger for aeroengine applications

Kritikos

Albanakis

Missirlis

et al. 2010

Applied Thermal Engineering

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In this paper, a numerical investigation of the thermal performance of a heat exchanger designed for aero engine applications is performed with the use of computational fluid dynamics (CFD). For this purpose, the exact geometry of the heat exchanger was modeled, and additionally the use of a porous medium methodology was adopted. For the latter the behaviour of the heat exchanger was described by experimentally derived pressure drop and heat transfer laws. The heat transfer performance of the heat exchanger can be described by the Nusselt number of the flow and the temperature distribution inside the heat exchanger. At the present work the CFD results regarding the overall and local Nusselt numbers and the temperature distributions were compared to available experimental data and were found to be in agreement. Thus, both approaches could be used for the detailed investigation of the thermal performance of the heat exchanger so that useful conclusions could be derived.

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Section: Fig 1 the Ira Aero Enginementioning

confidence: 99%

Investigation of the thermal efficiency of a staggered elliptic-tube heat exchanger for aeroengine applications

Kritikos

Albanakis

Missirlis

et al. 2010

Applied Thermal Engineering

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“…Most studies regarding heat transfer have been carried out at Pr of 0.7 [13,14,17,20]. Time to time, researchers have portrayed the effects of Prandtl number in different flow regimes and thermal boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Free stream flow and forced convection heat transfer across rotating circular cylinder in steady regime: effects of rotation, Prandtl number and thermal boundary condition

2015

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Free stream flow and forced convection heat transfer across a rotating circular cylinder have been investigated numerically for the range of Reynolds number between 5 and 40 (5 ≤ Re ≤ 40). The non-dimensional rotation rate, α is employed upto a maximum value of 5. The governing equations namely, continuity, momentum, and energy equations have been solved in 2D steady laminar flow regime for the range of Prandtl number between 0.7 and 67 (0.7 ≤ Pr ≤ 67). Uniform heat flux (UHF) and constant wall temperature (CWT) boundary conditions have been considered, separately, for the range of afore mentioned parameters. New results are presented depicting the behavior of temperature field around the cylinder rotating in a high Pr environment (Pr ≥ 33) with non-dimensional rotation rate in the range between 0 and 5 (0 ≤ α ≤ 5). It is noted that the heat transfer across the cylinder becomes increasingly independent of the thermal boundary condition i.e. UHF or CWT.

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“…Each such transition has an attendant effect on overall heat transfer. Ahmad [1] conducted a numerical analysis of heat transfer by forced-convection from a horizontal stationary circular cylinder in a cross-flow of air by solving two-dimensional steady-state Navier-Stokes and energy equations in the Reynolds number range from 100 to 500. He suggested correlations for separation angle, drag coefficient, vorticity, pressure and Nusselt number as a function of Reynolds number.…”

Section: Introductionmentioning

confidence: 99%

“…The phenomenon of flow separation, bluff body wake and prediction of heat transfer from a single cylinder [1,4,12,13,14,15,17,18,22,23,25] and tube bundle [2,3,7,19,20,24] has long been intensely studied because of its fundamental significance in flow physics and practical importance in aerodynamic and heat transfer applications.…”

Section: Introductionmentioning

confidence: 99%

A numerical study of the fluid flow and heat transfer around a single row of tubes in a channel using immerse boundary method

Cho

Son

2008

J Mech Sci Technol

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Steady-State Numerical Solution of the Navier-Stokes and Energy Equations around a Horizontal Cylinder at Moderate Reynolds Numbers from 100 to 500

Cited by 78 publications

References 153 publications

Investigation of the thermal efficiency of a staggered elliptic-tube heat exchanger for aeroengine applications

Investigation of the thermal efficiency of a staggered elliptic-tube heat exchanger for aeroengine applications

Free stream flow and forced convection heat transfer across rotating circular cylinder in steady regime: effects of rotation, Prandtl number and thermal boundary condition

A numerical study of the fluid flow and heat transfer around a single row of tubes in a channel using immerse boundary method

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