Air-Water Jet (Mist-Jet) for Ship Propulsion 



I CT: 1.0 



Fig. 5 - Results of calculation of momentum mean velocity 

 increase for given r, a, and v 



The other significant scoop loss to be considered is that of profile drag, 

 which may be defined in terms of a drag coefficient, Cd^. The thrust deduction 

 from the propulsion system may be written as 



Cn A. 



2g. 



and rearranged to a more convenient form by accounting for the free -stream 

 compression, 



Subtracting water scoop drag from the total thrust equation provides an expres- 

 sion for net thrust from the two -phase system: 



(1+ 0(Ve-vj -4 "-Cd 



^ A. 



1067 



