3D flow over the Meteor Crater in AZ
A. Approach to Steady Flow
1. impulsive startup at 8 m/s
a. spanwise vorticity, (x,z) cross section (crater subdomain)
b. stability, N2, (x,z) cross section (crater subdomain)
c. streamwise velocity, (x,z) cross section (crater subdomain)
d. solenoidal tendency, (x,z) cross section (crater subdomain)
2. impulsive startup at 4 m/s
a. spanwise vorticity, (x,z) cross section (crater subdomain)
b. stability, N2, (x,z) cross section (crater subdomain)
c. solenoidal tendency, (x,z) cross section (crater subdomain)
3. Approach to steady mean flow - ramp up to 4 m/s
a. spanwise vorticity, (x,z) cross section (crater subdomain)
b. stability, N2, (x,z) cross section (crater subdomain)
c. horizontal wind, (x,z) cross section (crater subdomain)
d. horizontal wind, (x,z) cross section (crater subdomain)
B. Oscillatory Flows
1. Oscillatory forcing at T = 300 s and Umax = 2 m/s
a. potential temperature, (x,z) cross section (crater subdomain)
b. solenoidal tendency, (x,z) cross section (crater subdomain)
2. Oscillatory forcing at T = 600 s and Umax = 2 m/s
a. potential temperature, (x,z) cross section (crater subdomain)
b. solenoidal tendency, (x,z) cross section (crater subdomain)
3. Oscillatory forcing at T = 1200 s and Umax = 2 m/s
a. potential temperature, (x,z) cross section (crater subdomain)
b. spanwise vorticity, (x,z) cross section (crater subdomain)
c. horizontal wind, (x,z) cross section (crater subdomain)
d. solenoidal tendency, (x,z) cross section (crater subdomain)
4. Oscillatory forcing spindown: T = 300 s and Umax = 2 m/s
displacements of potential temperature isosurface,
(x,y) cross section (crater subdomain)
Publications describing these results:
Goldstein, D., T. Lund, and D. C. Fritts, 2009: High-Resolution Numerical Studies of Stable Boundary Layer Flow over Arizona's Meteor Crater, I: Numerical Model and Approaches to Steady Responses, J. Atmos. Sci., submitted.
******** Paper.pdf, Figures.pdf **********
Fritts, D. C., D. Goldstein, and T. Lund, 2009: High-Resolution Numerical Studies of Stable Boundary Layer Flow over Arizona's Meteor Crater, II: Oscillatory Responses, J. Atmos. Sci., submitted.
******** Paper.pdf, Figures.pdf **********
Simulations designed and performed by Dan Goldstein,
Tom Lund, and Dave Fritts
Acknowledgments: Research results displayed on this page were performed with support from NSF grants ATM-0314060, ATM-0435789, and ATM-0444441 and MDA contract HQ0006-06-C-7328.