Structure of Evaporating Diesel Sprays
Abstract
Performance of compression ignition engine is known to be spray characteristics related. Precise experimental information on fuel sprays is of utmost importance to model the fuel spray formation and its development in the engine combustion chamber. The previous experimental work of the present author on non-evaporating sprays produced by using a FIAT single-hole orifice type nozzle and a distribution type commercial fuel injection pump forms the basis to derive correlations for penetration rates, break up times and lengths of diesel sprays. The results are compared with the existing published work and the agreement is found ideal. The correlations derived can be useful to do CFD modeling of sprays under variable conditions of injector nozzle hole diameter, fuel injection pressure, combustion chamber pressure and temperature or air density.References
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