Investigation for Convective Heat Transfer on Grinding Work-Piece Surface Subjected to a Mist/Air Impinging Jet

Abstract:

Two objectives were outlined in the current study. The first objective aimed to assess the detailed flow and heat transfer features in the vicinity of a rotating grinding wheel with jet impingement directed at grinding zone by numerical investigation. The second objective aimed to assess the quantitative evaluation for heat transfer enhancement on a grinding work-piece surface subjected to the mist/air jet impingement by experimental investigation. The results show that the coupled action of swirl air entrainment and jet impingement is benefit somewhat for overall convective heat transfer in relative to stationary disk case whether the disk rotates in clockwise or contrary clockwise. When the jet impinging direction is consistent with the rotational direction of rotating disk, convective heat transfer enhancement is achieved near grinding region, especially at higher rotating speed. Furthermore, the increasing of water droplet in mist/air jet impingement showed significant enhancement of the cooling effect.

• Periodical: Applied Mechanics and Materials (Volumes 249-250)
• Pages: 434-442
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.249-250.434
• Online since: December 2012
• Authors: Jing Zhou Zhang, Xiao Ming Tan, Bo Liu, Xing Dan Zhu
• Keywords: Grinding Zone Cooling, Heat Transfer Enhancement, Impinging Jet, Mist/Air Jet, Swirl Flow

References

[1] J. Shimizu, L. B. Zhou, H. Eda, Simulation and experimental analysis of super high-speed grading of ductile material, J. Mater. Proc. Technol. 129 (2002) 19-24.

DOI: 10.1016/s0924-0136(02)00568-x

[2] S. Malkin, C. Guo, Thermal analysis of grinding, Ann. CIRP 56 (2007) 760-782.

DOI: 10.1016/j.cirp.2007.10.005

[3] K. Ramesh, H. Huang, L. Yin, Analytical and experimental investigation of coolant velocity in high speed grinding, Int. J. Mach. Tools Manufact. 44 (2004) 1069-1076.

DOI: 10.1016/j.ijmachtools.2004.02.017

[4] T. Nguyen, L.C. Zhang, An assessment of the applicability of cold air and oil mist in surface grinding, J. Mater. Proc. Technol. 140 (2003) 224-230.

DOI: 10.1016/s0924-0136(03)00714-3

[5] D. Babic, D.B. Murray, A.A. Torrance, Mist jet cooling of grinding processes, Int. J. Mach. Tools Manufact. 45 (2005) 1171-1177.

DOI: 10.1016/j.ijmachtools.2004.12.004

[6] X. Li, J. L. Gaddis, T. Wang, Modeling of heat transfer in a mist/steam impingement jet, ASME J. Heat Transfer 124 (2001) 1086–1092.

DOI: 10.1115/1.1409262

[7] S. W. Chang, L. M. Su, Heat transfer of confined impinging air-water mist jet, JSME Int. J. Ser. B 44 (2001) 274-287.

DOI: 10.1299/jsmeb.44.274

[8] X. Li, J. L. Gaddis, T. Wang, Mist/steam heat transfer of confined slot jet impingement, ASME J. Turbomach. 123 (2000) 161-167.

DOI: 10.1115/1.1331536

[9] T. Wang, J. L. Gaddis, X. Li, Mist/steam heat transfer of multiple rows of impinging jets, Int. J. Heat Mass Transfer 48 (2005) 5179-5191.

DOI: 10.1016/j.ijheatmasstransfer.2005.07.016

[10] N. Saniei, X. Yan, An experimental study of heat transfer from a disk rotating in an infinite environment including heat transfer enhancement by jet impingement cooling, J. Enhanced Heat Transfer 7 (2000) 231-245.

DOI: 10.1615/jenhheattransf.v7.i4.20

[11] Y. Minagawa, S. Obi, Development of turbulent impinging jet on a rotating disk, Int. J. Heat Fluid Flow 25 (2004) 759-766.

DOI: 10.1016/j.ijheatfluidflow.2004.05.013

[12] A. Abdel-Fattah, Numerical simulation of turbulent impinging jet on a rotating disk, Int. J. Numer. Meth. Fluids 53 (2007) 1673-1688.

DOI: 10.1002/fld.1375

[13] T. Astarita, G. Cardone, Convective heat transfer on a rotating disk with a centered impinging round jet, Int. J. Heat Mass Transfer, 51 (2008) 1562-1572.

DOI: 10.1016/j.ijheatmasstransfer.2007.07.040

[14] S. Ebbrell, N. H. Woolley, Y. D. Tridimas, etal. The effects of cutting fluid application methods on the grinding process, Int. J. Mach. Tools Manuf. 40 (2000) 209-223.

DOI: 10.1016/s0890-6955(99)00060-7