Abstract:
A theoretical analysis is given of the diffusion evaporation of a water drop in a radiation field on the assumption that heat sources are distributed uniformly throughout the drop. Allowance is made for the dependence of the energy absorbed by the drop on its radius and for the nonlinear temperature dependence of the density of the saturated water vapor. The time dependences of the drop radius and of the temperature of its surface are obtained for the transient stage. After a time exceeding the duration of the transient stage, the initial system of equations, describing the evaporation of a drop, reduces to a quasisteady-state system. Numerical solutions of this system are obtained for several parameters.
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