Description
This
test case is provided for you to check your code before
running the assigned problem for Problem 5.
Please note the settings below, and remember to change all
settings back to the official problem(s) before running
and handing in results.
This is test case E -
same as test D, but with nonlinear U, W advection
enabled or disabled.
Do NOT DO THIS TEST unless you had
problems getting your test D to work!
If test D was OK, there is
no need to run test case E.
- Parameters: all same as test D:
- Grid layout: 201x41; dx=dz=100 meters
- Quasi-compressible sound speed Cs = 100 meters/sec
- Integration: time step ?t = 0.25 sec; run for 2400
steps (T=600s)
- This test includes full physics, with the initial
condition U = W = P' = 0, and T' = a cool bubble in the
middle of the domain.
- Initial bubble location: center (10050, 2050)
meters, which is grid point (101,21).
- Initial bubble specification: center magnitude -15 degrees K,
"radii" in X: 4000 m; Z: 1000 m.
- Diffusion: done for all k=[1,...,nz] for U and
Theta (changed from original handout).
- Diffusion coefficient = 50 (for U, W) for all
cases; diffusion for theta = 40.0
(for all, Lax-W and
PL)
- Note: plots have U and W averaged to the theta/p
locations at the center of each grid cell.
- Results for 'control' differ slightly from test D
results due to compiler/system changes since testD was
run.
Results: (click to see all times (400-1600 seconds) for
each case)
Control (=test D) |
No U/W advection |
U but no W advection |
W but no U advection |
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