On the linear heat transfer correlation of a heated circular cylinder in laminar crossflow using a new representative temperature concept

Wang, Anbang; Trávníček, Z.

doi:10.1016/s0017-9310(01)00103-x

Cited by 29 publications

(31 citation statements)

References 22 publications

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“…Wang and Trávniček [2] showed that this Nusselt number is a linear function of the square root of the Reynolds number Re rep based on the representative temperature defined by …”

Section: Measuring Setup and Resultsmentioning

confidence: 99%

“…Here we investigate the effect of heat transfer on the flow around a heated cylinder. Our eventual aim is to design a measuring method for the real-time monitoring of the velocity profile in a channel with a large cross-section [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Since the properties of the fluid depend on temperature, and for a heated cylinder the temperature of the fluid varies, it is necessary to consider the most appropriate temperature for calculating the fluid properties and related similarity numbers [2]. A typical approach is to use the average of the wall and ambient temperatures [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of low Reynolds number flow around a heated circular cylinder

et al. 2009

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The objective of this study is to investigate the forced convection from and the flow around a heated cylinder. Experimental and computational results are presented for laminar flow around a heated circular cylinder with a diameter of 10 mm. The experiments were carried out using Particle Image Velocimetry (PIV) in a wind tunnel, and numerical simulations using an in-house code and a commercial software package, FLUENT. This paper presents comparisons for vorticity and temperature contours in the wake of the cylinder. Experimental and computational results are compared with those available in the literature for heated and unheated cylinders. An equation is suggested for a temperature-dependent coefficient defining a reference temperature to be used in place of the constant used in other studies. An attempt is also made to correct differences between average cylinder surface temperature and measured interior temperature of the cylinder.

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“…Wang and Trávniček [2] showed that this Nusselt number is a linear function of the square root of the Reynolds number Re rep based on the representative temperature defined by …”

Section: Measuring Setup and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of low Reynolds number flow around a heated circular cylinder

et al. 2009

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“…17 is also plotted as the solid line in this figure for a comparison. Results from the non-isothermal cases 7,12,14,19,20 have revealed that the vortex-shedding frequency decreases with increasing cylinder temperature for the PVS mode. Similar trend also can be found for the vortex shedding frequency of OVS mode, i.e., the shedding frequency decreases with increasing temperature ratio.…”

Section: -3mentioning

confidence: 99%

The onset of oblique vortex shedding behind a heated circular cylinder in laminar wake regime

Trávníček

Wang

2012

Physics of Fluids

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“…NBN (2009) in conjunction with view factor calculation helps to derive h r . Determination of h c relies on work of Wang and Travnicek (2001) on convective heat transfer for crossflow over a circular cylinder. Further, omnidirectional thermal anemometers measured every minute the air velocity at seven points ( Figure 3).…”

Section: Test Equipmentmentioning

confidence: 99%

Experimental investigation of the impact of room/system design on mixed convection heat transfer

Goethals

Delghust

Flamant

et al. 2012

Energy and Buildings

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Multizone building energy simulation programs become popular among building designers. They include a wide variety of techniques and advanced heat transfer models, yet require only limited computation time. Unfortunately, the use of correlations to predict the convective heat transfer undermines their reliability. The correlations actually apply only to specific cases. Meanwhile, convective heat transfer modelling is particularly important in mixed convection regimes with high ventilation rates. It is selfevident that researchers would investigate to what extent including more room/system design parameters is necessary to model mixed convection heat transfer. The authors of this study imitated sequences of typical mixed convection cooling regimes (a day regime possibly preceded by night cooling) in a modified PASLINK cell and varied the air supply/exhaust configuration and added to some cases a thermally massive floor. The analysis was based on airflow data and the convective heat flux. The results indicate that the air supply/exhaust configuration is important when high ventilation rates are combined with heterogeneously distributed thermal mass. Existing convection correlations cannot predict the convective heat flux accurately for the studied cases.

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On the linear heat transfer correlation of a heated circular cylinder in laminar crossflow using a new representative temperature concept

Cited by 29 publications

References 22 publications

Analysis of low Reynolds number flow around a heated circular cylinder

Analysis of low Reynolds number flow around a heated circular cylinder

The onset of oblique vortex shedding behind a heated circular cylinder in laminar wake regime

Experimental investigation of the impact of room/system design on mixed convection heat transfer

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