ANALYTICAL SOLUTIONS OF SINGULARITIES MOVING WITH AN ARBITRARY PATH WHEN TWO FLUIDS ARE PRESENT

【摘要】：正 The derivations are carried out for the velocity potentials of singularities moving withan arbitrary path either in the upper fluid or in the lower fluid with or without a horizontalbottom when two fluids are present.In such a case,the pressure distribution is no longerequal to a constant or zero at the free interface.Taking the influence of an upper fluid uponthe lower fluid into consideration,a series of fundamental solutions in closed forms arepresented in this paper.