Intro to CFD

CFD finds a solution to the governing conservation equations...

• analytically.

• numerically.

Conventional CFD is concerned with:

• Microscopic behaviour.

• Macroscopic behaviour.

• Macroscopic and microscopic behaviour.

• No idea.

Boundary conditions (e.g. for velocity, pressure, density) will not affect the accuracy of the solution.

• True

• False

CFD is replacing experimental testing.

• True

• False

Open source CFD packages can be just as powerful and effective as commercial CFD packages.

• True

• False

If we make the mesh cells bigger, the accuracy of our CFD solution will usually:

• Decrease.

• Increase.

• Remain unchanged.

Almost all engineering flows are turbulent.

• True

• False