On the impingement heat transfer of an oblique free surface plane jet

Tong, Albert Y.

doi:10.1016/s0017-9310(02)00505-7

Cited by 55 publications

(43 citation statements)

References 15 publications

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“…3 and 4, where it clearly shows that a jet height of 10 mm from the top face of the tool is the most effective cooling height. As the jet diameter is 2 mm the resulting optimum (diameter to jet gap) D G ratio is therefore 5 which is higher than the optimum D G ratio based on previous research of an impinging jet on a flat plate Lee et al [5], Tong [6], proving that this previous theory may not be suitable for this machining application. A number of factors such as the shape of the surface of the tool or the effect of the rotating workpiece disturbing the air steam from the jet may have affected the performance of the impingement process.…”

Section: Tic-sth 2009mentioning

confidence: 70%

Sustainable metal cutting

Boswell

Chandratilleke

2009

2009 IEEE Toronto International Conference Science and Technology for Humanity (TIC-STH)

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Abstract-Metal cutting companies are being compelled to reduce their impact on the environment as more international and government environmental protection legislation is introduced. Ensuring appropriate waste disposal measures are in place will be essential to allow companies to operate. Particular attention must be given to liquid coolant used in metal cutting as this is a significant source of environmental pollution. Dry machining is obviously more ecologically desirable for metal cutting as there are no environmental issues or disposal costs for the coolant. Unfortunately though, there are issues that need to be resolved before manufacturing companies will adopt dry machining, mainly associated with the reduction of tool life. However, from previous research, it has been shown that the introduction of cold air directed at the cutting zone significantly increased tool life removing coolant waste disposal costs. To further improve the up take of air cooling the most sustainable and most efficient method of generating cold air suitable for machining must be sought. Comparing three methods of providing cold air has shown that the vortex tube is the most suitable method for providing cold air to the tool interface.

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Section: Tic-sth 2009mentioning

confidence: 70%

Sustainable metal cutting

Boswell

Chandratilleke

2009

2009 IEEE Toronto International Conference Science and Technology for Humanity (TIC-STH)

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“…2. Following the studies of Beltos [2], Rubel [26,27], Sparrow and Lovell [28] and Tong [29], it can be inferred that the radial spreading flow is, in general, three-dimensional in nature. This is due to the fact that the section of an inclined circular jet on a horizontal plate is nothing but an ellipse.…”

Section: Introductionmentioning

confidence: 97%

Investigation on non-circular hydraulic jumps formed due to obliquely impinging circular liquid jets

Kate

Das

Chakraborty

2008

Experimental Thermal and Fluid Science

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“…It can also be classified according to surface type as flat or curved and according to type of flow as single-or two-phase flow. A considerable amount of research in all of these flow categories has been published using analytical and experimental techniques [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Particle Concentration on Cooling of a Circular Horizontal Surface Using Nanofluid Jets

Zeitoun¹,

Ali²,

Al-Ansary³

2013

Nanoscale and Microscale Thermophysical Engineering

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Here we report an experimental study of the heat transfer between a nanofluid jet and a horizontal heated circulate disk. The nanofluid jet has circular cross section and includes Al 2 O 3 nanoparticles and water as the matrix fluid. The measurements include varying flow rates (0.006-0.075 kg/s) and jet diameters (3.9-8.2 mm) and nanoparticle concentrations (6.6 and 10% by mass). The Nusselt number increases for a given Reynolds number for increasing particle concentration, and this sensitivity is larger than that achieved through the variation in jet diameter and velocity explored in this study. Finally, the data are collapsed on one curve where the Peclet number is used for each concentration.

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On the impingement heat transfer of an oblique free surface plane jet

Cited by 55 publications

References 15 publications

Sustainable metal cutting

Sustainable metal cutting

Investigation on non-circular hydraulic jumps formed due to obliquely impinging circular liquid jets

The Effect of Particle Concentration on Cooling of a Circular Horizontal Surface Using Nanofluid Jets

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