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A laser induced fluorescence technique for quantifying transient liquid fuel films utilising total internal reflection

This paper describes a new optical technique for quantifying 3D transient liquid-fuel films spreading over solid surfaces, here an engine piston-head. It emanates from Cardiff’s 15-year ongoing partnership with internationally-leading, UK-based engineering consultancy Ricardo, which includes five consecutively-sponsored Ricardo/EPSRC PhDs ((Director Steve.Sapsford@ricardo.com, Case Study 4). The application is ‘wall-guided’ gasoline direct-injection engines, which have provided significant global reduction in fuel consumption and emissions. Ricardo used this technique to validate their internationally-renowned commercial software ‘VECTIS’, and selected this as one of three posters showcasing their gasoline engine research at the opening of their Shoreham laboratories by HRH Prince Andrew in 2008.