Question

The total force on a surface results from integrating what over the surface in fluid mechanics

Answer 1

For calculating the total force on a surface must integrate the fluid shear stress over the whole surface.

Step-by-step explanation:

By definition, the total force from the fluid in the cartesian system of coordinates is defined as:

`F=\int\ {\tau (x,y)} \, dx dy`

The shear stress can be calculated by applying the Navier-Stokes equations and also can be expressed in other coordinates systems like cylindrical or spherical coordinates system.