A numerical study of the steady forced convection heat transfer from an unconfined circular cylinder

Bharti, Ram P.; Chhabra, R.P.; Eswaran, V.

doi:10.1007/s00231-006-0155-1

Cited by 157 publications

(104 citation statements)

References 27 publications

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“…Recently, the flow and heat transfer around a rotating circular cylinder is studied by Paramane and Sharma [12] for the values of speed of rotation α varies from 0 ≤ ∝ ≤ 6 for Reynolds number range 20 -160 and Pr=0. 7. The values of drag coefficient as well as average Nusselt number are found to decrease with increasing the rotation rate.…”

Section: Introductionmentioning

confidence: 83%

“…The effect of Prandtl number on the heat transfer from a cylinder in the cross-flow configuration has been investigated by Dennis et al [6] for Reynolds number up to 40. Bharti et al [7] investigated the effects of Reynolds number, Prandtl number in uniform heat flux and constant wall temperature around the cylinder for the range 10 < Re < 45 and 0.7 < Pr < 400 in the steady regime.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Investigation of the Mixed Convection from a Confined Rotating Circular Cylinder

Yahiaoui

Nehari²,

Draoui³

2017

Period. Polytech. Mech. Eng.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

The Investigation of the Mixed Convection from a Confined Rotating Circular Cylinder

Yahiaoui

Nehari²,

Draoui³

2017

Period. Polytech. Mech. Eng.

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“…Mencinger and Zun [17] presented the finite volume discretization of discontinuous body forced field on collocated grid. Bharti et al [18] have studied forced convection heat transfer from an unconfined circular cylinder in steady cross-flow regime using finite volume method. Hokpunna and Manhart [19] presented a compact fourth-order finite volume method for numerical solutions of the Navier-Stokes equations on staggered grids.…”

Section: Introductionmentioning

confidence: 99%

Numerical solutions of a steady 2-D incompressible flow in a rectangular domain with wall slip boundary conditions using the finite volume method

Ambethkar¹,

Srivastava²

2017

J. Appl. Math. Comput. Mech.

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Abstract. In this study, a finite volume method (FVM) is suitably used for solving the problem of a fully coupled fluid flow in a rectangular domain with slip boundary conditions. Numerical solutions for the flow variables, viz. velocity, and pressure have been computed. The FVM, with an upwind scheme, has been implemented to discretize the governing equations of the present problem. The well known SIMPLE algorithm is employed for pressure-velocity coupling. This was executed with the aid of a computer program developed and run in a C-compiler. Computations have been performed for unknown variables with Reynolds numbers (Re) = 50, 100, 250, 500, 750 and 1000. The behavior of steady-state solutions of velocity and pressure of the fluid along horizontal and vertical through geometric center of the rectangular domain have been illustrated. We observed that, with the increase of the Reynolds number, the absolute value of velocity components decreases whereas the pressure value increases.MSC 2010: 35Q30, 65M08, 65N08, 74S10, 76D05, 76M12

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“…Bharti, R.P. Chhabra [10] studies the forced convection heat transfer from an unconfined circular cylinder in the steady cross-flow regime has been studied using a finite volume method (FVM) implemented on a Cartesian grid system in the range as 10 ≤ Re ≤ 45 and 0.7 ≤ Pr ≤ 400. S. Sarkar, A. Dalal, G. Biswas [11] work on the effect of Prandtl number on forced convective flow and heat transfer characteristics past a circular cylinder in unsteady regime has also been explored recently, The results of forced convection with the Prandtl number range 0.7 ≤ Pr ≤ 100 reveal functional dependence on the average Nusselt number with the Reynolds 60 ≤ Re ≤ 200 and Prandtl number.…”

Section: Introductionmentioning

confidence: 99%

“…He reported the influence of Reynolds number (20-500), angle of inclination (0-90) and aspect ratio (0.4-0.9) on heat transfer, and E.H. Ahmad and H.M Badr [14] studied the effect of fluctuations in the freestream velocity on the mixed convection heat transfer from an elliptic cylinder for three values of the Reynolds numbers of 50, 100 and 150 and Grashof numbers as 20,000, 30,000 and 50,000, P. Sivakumar, R.P. Bharti [15] studied momentum transfer characteristics of the power-law fluid flow past an unconfined elliptic cylinder numerically by solving continuity and momentum equations using FLUENT in the twodimensional steady cross-flow regime. The Reynolds number (0.01≤ Re ≤ 40) and the aspect ratio of the elliptic cylinder (0.2 ≤ E ≤ 5) on the local and global flow characteristics have been studied.…”

Section: Introductionmentioning

confidence: 99%

Forced Convection Heat Transfer around Heated Inclined Cylinder

Ezzat¹,

Zghaer²

2013

IJCA

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Experimental and numerical investigations are conducted to study heat transfer coefficient around cylindrical shape bluff body subjected to constant heat flux at its outer surface and cooled by air steam flowing around it. The study covered positioning the cylinder in vertical, horizontal and 45o inclined angle with respect to the free air stream, with its axis in horizontal position parallel to the flow and Reynolds numbers ranging (8,900 -48,000) for vertical, inclined and horizontal positions. Numerical approach is realized by conducting mathematical model of the problem and solving it numerically using a CFD Code FLUENT 6.3.26 after describing the mesh model using the Gambit 2.2.30. Three dimensional Cartesian coordinate system is considered in this study. The studied geometry is generated by using GAMBIT with dimensions of rectangular box L=127mm, W=130mm and H=129mm. The dimensions of heated cylinder is set identical to the experimental test H=90mm and R=17mm. Proper assumptions are based to solve the governed equations. The experiments are based on air as cooling fluid to investigate heat transfer coefficient around the heated cylinder. Constant heat flux is generated on the surface of the cylinder using proper electrical heater. The heat flux around the cylinder equal (5217, 5201 and 5284 W/m2) for vertical, inclined and horizontal positions respectively. Air flow is ensured around the heated cylinder at different velocities using proper test rig. Local heat transfer coefficients around the cylinder are investigated based on the heat flux measured value and the temperature differences between local cylinder surface temperature and the air stream temperature measured by thermocouples, and standard Pitot-static tube with curved junction (N.P.L standard) was used to measure air free stream velocity. The conducted comparison between the recent experimental results and those obtained from previous work showed reliable agreement. Where maximum error obtained from this comparison was 6.4% for vertical position.

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A numerical study of the steady forced convection heat transfer from an unconfined circular cylinder

Cited by 157 publications

References 27 publications

The Investigation of the Mixed Convection from a Confined Rotating Circular Cylinder

The Investigation of the Mixed Convection from a Confined Rotating Circular Cylinder

Numerical solutions of a steady 2-D incompressible flow in a rectangular domain with wall slip boundary conditions using the finite volume method

Forced Convection Heat Transfer around Heated Inclined Cylinder

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