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Ion-soot interaction: a possible mechanism of ion removal in aircraft plume
O B Popovicheva1, N M Persiantseva, A M Starik
1Institute of Nuclear Physics, Moscow State University, 119992 Moscow, Russia. polga@mics.msu.su
Abstract:
The phenomenon of the ion-soot interaction in the aircraft plume at the ground conditions is investigated. The ion-soot attachment coefficients, taking into account the polarization of the soot particles in the ion electric field, are calculated. It is shown that the ion-soot attachment may play the important role in the evolution of the ion concentrations in the plume. Comparison of the model results with the ground-based measurements for the ion depletion along the plume demonstrates that the concentration of the positive and negative ions at the nozzle exit for these observations is close to 1.2 x 10(8) cm(-3).
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