Multyphase air and water drag forces
 

Dear forum members, tell me please, for a test example such as the openfoam DTCHull tutorial in the forces.dat file, are the values of viscous forces and pressure forces are given only for the water phase or for two phases at once (water + air)?

If the results are given for two phases, how can we get separate solutions for the air and water phases?

if the result is only for the water phase, how do I add a solution for the air phase?