Flow dynamics over a heated cylinder subjected to high temperature ratios

Homsi, Rami; Islam, M.D.; Yap, Yit Fatt; Janajreh, Isam

doi:10.1016/j.csite.2021.101357

Cited by 10 publications

(5 citation statements)

References 22 publications

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“…fig.10, shows important differences. In particular, the maximum value of C l decreases for the case with r θ = 2, in agreement with the findings by Homsi et al[24].…”

supporting

confidence: 92%

A Discrete Immersed Boundary Method for the numerical simulation of heat transfer in compressible flows

Riahi¹,

Goncalves²,

Meldi³

2023

Preprint

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In the present study, a discrete forcing Immersed Boundary Method (IBM) is proposed for the numerical simulation of high-speed flow problems including heat exchange. The flow field is governed by the compressible Navier-Stokes equations, which are resolved by using the open source library OpenFOAM. The numerical solver is modified to include source terms in the momentum equation and in the energy equation, which account for the presence of the immersed body. The method is validated on some benchmark test cases dealing with forced convection problems and moving immersed bodies. The results obtained are in very good agreement with data provided in the literature. The method is further assessed by investigating three-dimensional high Mach flows around a heated sphere with different wall temperature. Even for this more complex test case, the method provides an accurate representation of both thermal and velocity fields.

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“…fig.10, shows important differences. In particular, the maximum value of C l decreases for the case with r θ = 2, in agreement with the findings by Homsi et al[24].…”

supporting

confidence: 92%

A Discrete Immersed Boundary Method for the numerical simulation of heat transfer in compressible flows

Riahi¹,

Goncalves²,

Meldi³

2023

Preprint

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“…Shi et al [44] showed that for a given free-stream Reynolds number, the cylinder heating has no influence on the average drag coefficient and that the latter remains almost constant for free-stream Reynolds numbers between 100 and 200. Hence, the results of Homsi et al [48], obtained for a flow past a cylinder heated at T * w = 1.66 at Re ∞ = 150, as well as the results of Lima E Silva et al [49] for an unheated cylinder at Re ∞ = 150, can be considered here for C d comparisons. Table 4 shows a well agreement between the present drag coefficients and the results of the mentioned above authors [48,49].…”

Section: Case 2: Unsteady Flow Past a Circular Cylindermentioning

confidence: 95%

“…Hence, the results of Homsi et al [48], obtained for a flow past a cylinder heated at T * w = 1.66 at Re ∞ = 150, as well as the results of Lima E Silva et al [49] for an unheated cylinder at Re ∞ = 150, can be considered here for C d comparisons. Table 4 shows a well agreement between the present drag coefficients and the results of the mentioned above authors [48,49]. The Strouhal number obtained for both methods shows an excellent agreement with the results of Shi et al [44].…”

Section: Case 2: Unsteady Flow Past a Circular Cylindermentioning

confidence: 95%

Assessment of volume penalization and immersed boundary methods for compressible flows with various thermal boundary conditions

Ménez,

Parnaudeau,

Beringhier

et al. 2023

Journal of Computational Physics

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“…This implies that the outer spirals take the bulk temperature of the combustion chamber at any time; we have from the thermocouple, T ( t ) = T ∞ ( t ) at some t . For any setup that lacks similar conditions, equations (1)–(3) will have to be solved [11, 12].…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…then T ∞ = T , T is the temperature at the wall. This implies that the outer spirals take the bulk temperature of the combustion chamber at any time; we have from the thermocouple, T (t) = T ∞ (t) at some t. For any setup that lacks similar conditions, equations ( 1)-( 3) will have to be solved [11,12]. Consider the whole material as a finite hollow cylinder of fixed radius r, the inward heat flow can be described by:…”

Section: ∂(ρE)mentioning

confidence: 99%

A mathematical model for the prediction of mechanical properties on ASTM A510/A853 cold-drawn hypoeutectoid steel wire after batch annealing

Sánchez de León

2024

Mathematics and Mechanics of Solids

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Annealed ASTM A510/A853 hypoeutectoid steel wire is a very useful and versatile material that finds its applications in the construction industry; this is mainly due to its mechanical properties, since this product can reach high ductility. In order to achieve the sought quality and homogeneity in this material, it is necessary to have a suitable control during operation. Important operational control parameters in batch annealing are: heating and cooling rates, holding temperature and cycle time. These parameters have a direct effect on the process, and it is essential to elucidate the way they impact in the final product. This work concerns the development of a mathematical model targeted at the prediction of mechanical properties in terms of the operational parameters, in the outer spirals of American Iron and Steel Institute/Society of Automotive Engineers (AISI/SAE) steel drawn wire coils after they have been subjected to batch annealing. The model addresses non-isothermically the involved phenomena that take place during the annealing process: recovery, recrystallization, and grain growth below and above Ac1. It predicts grain size, tensile strength, and yield strength values with very good accuracy.

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Flow dynamics over a heated cylinder subjected to high temperature ratios

Cited by 10 publications

References 22 publications

A Discrete Immersed Boundary Method for the numerical simulation of heat transfer in compressible flows

A Discrete Immersed Boundary Method for the numerical simulation of heat transfer in compressible flows

Assessment of volume penalization and immersed boundary methods for compressible flows with various thermal boundary conditions

A mathematical model for the prediction of mechanical properties on ASTM A510/A853 cold-drawn hypoeutectoid steel wire after batch annealing

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