The effect of the liquid motion induced by air and vapor bubbles on heat transfer around a cylinder

Atmane, Mohamed A.; Murray, Darina B.

doi:10.1016/j.ijheatmasstransfer.2004.09.032

Cited by 9 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was the first reputed study into the effect of a bubble impacting a surface. A similar study was performed by Atmane & Murray [1] who measured local heat flux variation due to vapour or air injected bubble motion.…”

Section: Introductionmentioning

confidence: 79%

“…In some heat exchangers with two phase flow, vapour bubbles may sometimes impinge against the heat exchanger surface and this behaviour can directly affect convective heat flow within the heat exchanger (Atmane & Murray [1], Cornwell [2]). Investigations into this complex fluid structure interaction have only begun in recent years, most recently by Sato et al [3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bubble impingement and the mechanisms of heat transfer

Donoghue

Albadawi

Delauré

et al. 2014

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

Heat transfer augmentation resulting from the effects of two phase flow can play a significant role in convective cooling applications. To date, the interaction between a rising gas bubble impinging on a heated horizontal surface has received limited attention. Available research has focused on bubble dynamics and the associated heat transfer has not been reported. To address this, this study investigates the effect of a single bubble impinging on a heated horizontal surface. Local and time resolved heat transfer measurements have been performed for a died orifice to surface distance, with a bubble injection orifice of 1 mm in diameter. Synchronized high-speed photography and infrared thermography have been utilized to investigate the path of the bubble and the associated heat transfer.

show abstract

Section: Introductionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Bubble impingement and the mechanisms of heat transfer

Donoghue

Albadawi

Delauré

et al. 2014

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

show abstract

“…Research has shown that two phase flows can produce exceedingly high heat transfer coefficients, which have the ability to be an order of magnitude higher than their single phase counterparts. This has motivated numerous investigations over the past century [1][2][3][4][5][6][7][8][9]. Although the dynamics of free rising bubbles have been studied extensively [10][11][12][13][14], research into their effects on heat transfer is limited; even fewer studies have been performed in relation to bouncing bubbles.…”

Section: Introductionmentioning

confidence: 99%

“…Although the dynamics of free rising bubbles have been studied extensively [10][11][12][13][14], research into their effects on heat transfer is limited; even fewer studies have been performed in relation to bouncing bubbles. A number of authors have investigated the effect of a bubble bouncing against a solid surface [15][16][17][18][19] under adiabatic conditions, but the corresponding heat transfer processes have received limited attention to date [3,4,20,21].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of heat transfer for axisymmetric bubble impingement and rebound

et al. 2017

View full text Add to dashboard Cite

Heat transfer enhancement resulting from the impingement and rebound of bubbles in confined geometries can play an important role in heat transfer applications. Limited studies exist on the impact behaviour of large ellipsoidal bubbles against a horizontal surface, while the associated fluid flow field has received even less recognition. To address this, the current study investigates the dynamics of a single large ellipsoidal bubble impinging on a horizontal heated surface.The bouncing dynamics have been explored by utilising synchronised high-speed and IR photography. Due to the large bubble size in the present study only a bubble with a low release to surface distance was found to have a symmetric bouncing event. The results showed that separated wake structures initially cooled the surface before the wake structures become counter productive and convect warm fluid onto the previously cooled surface. Two cooling zones were observed; the inner region due to the bubble and the outer region due to the bubble's wake.

show abstract

“…Atmane & Murray [10] studied the effect of liquid motion induced by air and vapour bubbles on heat transfer from a cylinder. They used a heated copper cylinder as the test surface and a hot film sensor to measure the fluctuating heat flux.…”

Section: Introductionmentioning

confidence: 99%

Sliding bubble dynamics and the effects on surface heat transfer

Donnelly¹,

Robinson

Delauré

et al. 2012

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

An investigation into the effects of a single sliding air bubble on heat transfer from a submerged, inclined surface has been undertaken. Existing literature has shown that both vapour and gas bubbles can increase heat transfer rates from adjacent heated surfaces. However, the mechanisms involved are complex and dynamic and in some cases poorly understood. The present study utilises high speed, high resolution, infrared thermography and video photography to measure two dimensional surface heat transfer and three dimensional bubble position and shape. This provides a unique insight into the complex interactions at the heated surface. Bubbles of volume 0.05, 0.1, 0.2 and 0.4 ml were released onto a surface inclined at 30 degrees to horizontal. Results confirmed that sliding bubbles can enhance heat transfer rates up to a factor of 9 and further insight was gained about the mechanisms behind this phenomenon. The enhancement effects were observed over large areas and persisted for a long duration with the bubble exhibiting complex shape and path oscillations. It is believed that the periodic wake structure present behind the sliding bubble affects the bubble motion and is responsible for the heat transfer effects observed. The nature of this wake is proposed to be that of a chain of horseshoe vortices.

show abstract

The effect of the liquid motion induced by air and vapor bubbles on heat transfer around a cylinder

Cited by 9 publications

References 14 publications

Bubble impingement and the mechanisms of heat transfer

Bubble impingement and the mechanisms of heat transfer

Mechanisms of heat transfer for axisymmetric bubble impingement and rebound

Sliding bubble dynamics and the effects on surface heat transfer

Contact Info

Product

Resources

About