Abstract
Measurement uncertainties of phase Doppler technique in application for practical combusting spray was investigated. There are many error sources reported as Gaussian beam effect, trajectory effect and slit effect and so on. But further measurement uncertainties may be yielded such as slit location shift effect, optical measurement volume size choice and flame front pressure effect. In this study, two dominant factors have been examined in measurements of spray burner of 0.1MW
It is found that the slit location shift effect can hardly be avoided in combustion and numerous errors may be caused. Quantitative uncertainty value will be examined in this study. The control volume size should be determined in consideration of velocity gradient in shear flow region. But this matter is not considered in the practical measurement. This error sources were also discussed here. The flame front will change the optical path like slit location shift so as to have measurement error in the small diameter droplet.
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Ikeda, Y., Hirohata, T., Nakajima, T. (1997). Measurement Uncertainties of Phase Doppler Technique due to Effect of Slit Location, Control Volume Size Effects. In: Adrian, R.J., Durão, D.F.G., Durst, F., Heitor, M.V., Maeda, M., Whitelaw, J.H. (eds) Developments in Laser Techniques and Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60911-4_11
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DOI: https://doi.org/10.1007/978-3-642-60911-4_11
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