The provided image contains key information about the Navier-Stokes equations in fluid dynamics. Here is an explanation of the content:

Velocity Field and Pressure Field

• Velocity field (u): This represents the velocity of the fluid at each point in space. It is a vector field with components u, v, and w in the x, y, and z directions respectively.
• Pressure field (p): This represents the pressure of the fluid at each point in space.

Constants and External Force

• **Vis