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Developing mathematical theories of the physical world: Open Access research on fluid dynamics from Strathclyde

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Optical emission from spark discharge in water : evaluation of plasma temperature

Timoshkin, I. V. and Given, M. J. and Wilson, M. P. and Wang, T. and MacGregor, S. J. and Bonifaci, N. (2015) Optical emission from spark discharge in water : evaluation of plasma temperature. In: Proceedings of 22nd International Symposium on Plasma Chemistry. IPCS - International Plasma Chemistry Society, P-I-3-32-1-3.

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Abstract

High voltage spark discharges in water are characterised by intensive light emission which can be used for evaluation of plasma temperature in the discharge cavity. This paper presents a study of the plasma temperature of spark discharges in tap and distilled water as a function of the inter-electrode distance. The results show that plasma temperature reaches its maximum at a specific inter-electrode gap