Equation system describing the radiation intensity and the air motion   with the water phase transition
  In this paper we consider the equation system describing the motion of the air and the variation of the radiation intensity and the quantity of water droplets in the air, including also the process of water phase transition. Under a suitable condition we prove the existence and uniqueness of the local solution. By eliminating the approximation by regularization of vapor density and by including the equation of radiation, this result improves previous ones. 
Meryem Benssaad, Hanane Belhireche, Steave C. Selvaduray
math.AP