## Lecture 3-2: The Fluid Solver (2/3)

The predicted velocity field includes all effects except
The pressure
The advection of momentum
Viscous diffusion
Body forces
None of the above

The divergence of the predicted velocity field generally is
Zero
Not zero
Equal to the pressure field
Positive
Negative

The corrected velocity fields adds
The buoyancy to the predicted velocity
The viscous terms to the predicted velocity
The advection to the predicted velocity
The pressure gradient to the predicted velocity
None of the above

The pressure equation is derived by using the
The predicted velocity and the incompressibility condition
The predicted velocity and the density advection equation
The corrected velocity and the incompressibility condition
The corrected velocity and the density advection equation
None of the above

The pressure equation can be solved by
Gauss elimination
Jacobi iteration
Gauss-Seidel iteration
Successive Over-Relaxation
All of the above

The pressures needed to find the horizontal (u) velocity are given at the
The center of the velocity control volume
The left and right edge of the velocity control volume
The top and the bottom of velocity control volume
The corners of the velocity control volume
None of the above

The pressures needed to find the vertical (v) velocity are given at the
The center of the velocity control volume
The left and right edge of the velocity control volume
The top and the bottom of velocity control volume
The corners of the velocity control volume
None of the above

The control volumes are arranged such that solid boundaries cut through
The pressure control volume
The control volume for the normal velocity
The control volume for the tangent velocity
The control volume for both the normal and the tangent velocities
None of the above

In the present code, INSIDE the domain we have
nx by nx pressure control volumes
ny by ny pressure control volumes
nx-1 by ny-1 pressure control volumes
nx by ny pressure control volumes
nx+1 by ny+1 pressure control volumes

The TOTAL number of control volumes for the vertical (u) velocity (including ghost cells) in the present code are:
nx-1 by ny-1
nx by ny
nx+1 by ny+1
nx+2 by nx+2
None of the above