The optimal spacing of cylinders in free-stream cross-flow forced convection

Stanescu, George; Fowler, Alex; Bejan, Adrian

doi:10.1016/0017-9310(95)00122-p

Cited by 104 publications

(50 citation statements)

References 9 publications

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“…This has lead researchers to study the optimized configurations for various architectures such as: the optimal spacing of parallel plates in forced convection, natural convection and mixed convection [1][2][3][4]; the optimal spacing of cylinders in forced convection and natural convection [5,6]; and various optimized multi-scale structures [7][8][9][10][11][12], etc.…”

Section: Introductionmentioning

confidence: 99%

Maximum heat transfer density rate enhancement from cylinders rotating in natural convection

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Bello‐Ochende

Meyer

2011

International Communications in Heat and Mass Transfer

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In this paper we investigate the thermal behaviour of an assembly of consecutive cylinders in a counter-rotating configuration cooled by natural convection with the objective of maximizing the heat transfer density rate (heat transfer rate per unit volume). A numerical model is used to solve the governing equations that describe the temperature and flow fields. The spacing between the consecutive cylinders is optimised for each flow regime (Rayleigh number) and cylinder rotation speed. It was found that the optimized spacing decreases as the Rayleigh number increases and the heat transfer density rate increases, for the optimized structure, as the cylinder rotation speed is increased. Results further shows that there is an increase in the heat transfer density rate of the rotating cylinders over stationary cylinders.

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Section: Introductionmentioning

confidence: 99%

Maximum heat transfer density rate enhancement from cylinders rotating in natural convection

Page

Bello‐Ochende

Meyer

2011

International Communications in Heat and Mass Transfer

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“…There is a similar problem, in which the heat exchanger's volume is fixed while the number of tubes and the distance between them is variable. There are experimental results (Stanescu, Fowler and Bejan, 1996) for this other problem that show the existence of an optimal geometric point. …”

Section: Calculation Of Modeling Errorsmentioning

confidence: 98%

“…Forced convection in a heat exchanger consisting of a set of circular tubes was studied by Stanescu, Fowler and Bejan (1996). This problem can be modeled mathematically by equations of mass, momentum and energy conservation (Tannehill, Anderson and Pletcher, 1997):…”

Section: Definition Of the Problemmentioning

confidence: 99%

“…3. The reason for using an L length before and after the tubes is discussed in the work of Stanescu, Fowler and Bejan (1996) and Matos et al (2001). The boundary conditions indicated in Fig.…”

Section: Definition Of the Problemmentioning

confidence: 99%

“…The variable of interest of the problem is the dimensionless overall thermal conductance (Q) of the heat exchanger, defined in Stanescu, Fowler and Bejan (1996) and Matos et al (2001) as:…”

Section: Definition Of the Problemmentioning

confidence: 99%

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