LOWER ESTIMATE OF THE FLIGHT RANGE
OF A FIRE-EXTINGUISHING LIQUID DROP

V. P. Ol'shanskiia and S. V. Ol'shanskiib

UDC 614.84:628.174

A closed analytical solution of a nonlinear differential 
equation with variable coefficients which describes the vertical motion 
of an ascending evaporating drop as a material point of variable mass 
has been constructed in Airy functions. It is shown that this solution 
yields a lower estimate of the flight range of the drop when it outflows 
at an arbitrary angle to the horizon.

a Khar'kov National Technical University of Agriculture, 
44 Artem Str., Khar'kov, 61002, Ukraine; 
b National Technical University "Khar'kov Polytechnic Institute," 
email: stasolsh@mail.ru. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 80, No. 4, pp. 59-62, July-August, 2007. Original 
article submitted March 28, 2006.