Effects of finescale debris on near-surface tornado dynamics

Journal of the Atmospheric Sciences

Volumn 65, Issue 10, 2008, Pages 3247-3262

  Lewellen, D C ^a   Gong, Baiyun ^a   Lewellen, W S ^a  

^a WEST VIRGINIA UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ATMOSPHERICS; CENTRIFUGATION; CLOUDS; DOPPLER EFFECT; DOPPLER RADAR; DYNAMICS; RADAR; RADAR MEASUREMENT; STORMS; STRUCTURAL DESIGN; SURFACE CHEMISTRY; TORNADOES; WIND EFFECTS;

CORNER FLOWS; DAMAGE POTENTIALS; DEBRIS CLOUDS; DIMENSIONLESS PARAMETERS; DOPPLER RADAR MEASUREMENTS; EULERIAN; HIGH RESOLUTIONS; LARGE-EDDY SIMULATIONS; MASS LOADINGS; MEAN VELOCITIES; MOMENTUM TRANSPORTS; REALISTIC SIMULATIONS; SIGNIFICANT MECHANISMS; SURFACE DAMAGES; SURFACE DEBRIS; SURFACE LAYERS; TORNADO DYNAMICS; TOTAL MASSES; TOTAL MOMENTUMS; WIND SPEEDS; WIND STRUCTURES;

DEBRIS;

ANGULAR MOMENTUM; DEBRIS FLOW; DOPPLER RADAR; FLOW STRUCTURE; LARGE EDDY SIMULATION; TORNADO; WIND VELOCITY;

EID: 56849114810     PISSN: 00224928     EISSN: None     Source Type: Journal    
DOI: 10.1175/2008JAS2686.1     Document Type: Article

References (24)

1. Batt, R. G., M. P. Petach, S. A. Peabody, and R. R. Batt, 1999: Boundary layer entrainment of sand-sized particles at high speed. J. Fluid Mech., 392, 335-360.
2. Bluestein, H. B., C. C. Weiss, and A. L. Pazmany, 2004: Doppler radar observations of dust devils in Texas. Mon. Wea. Rev., 132, 209-224.
3. Crowe, C. T., T. R. Troutt, and J. N. Chung, 1996: Numerical models for two-phase turbulent flows. Annu. Rev. Fluid Mech., 28, 11-43.
4. Dowell, D. C., C. R. Alexander, J. M. Wurman, and L. J. Wicker, 2005: Centrifuging of hydrometeors and debris in tornadoes: Radar-reflectivity patterns and wind-measurement errors. Mon. Wea. Rev., 133, 1501-1524.
5. Druzhinin, O., and S. Elghobashi, 1999: On the decay rate of isotropic turbulence laden with microparticles. Phys. Fluids, 11, 602-610.
6. Farnell, L., 1980: Solution of Poisson equations on a nonuniform grid. J. Comput. Phys., 35, 408-425.
7. Ferry, J., S. L. Rani, and S. Balachandar, 2005: A locally implicit improvement of the equilibrium Eulerian method. Int. J. Multiphase Flow, 29, 869-891.
8. Gong, B., 2006: Large-eddy simulation of the effects of debris on tornado dynamics. Ph.D. thesis, West Virginia University, 187 pp.
9. Gong, B., D. C. Lewellen, and W. S. Lewellen, 2006: Effects of fine-scale debris on different tornado corner flows. Preprints, 23rd Conf. on Severe Local Storms, St. Louis, MO, Amer. Meteor. Soc., P10.3. [Available online at http://ams.confex.com/ams/pdfpapers/ 115317.pdf.]
10. Gu, Z., Y. Zhao, Y. Li, Y. Yu, and X. Feng, 2006: Numerical simulation of dust lifting within dust devils - Simulation of an intense vortex. J. Atmos. Sci., 63, 2630-2641.
11. Kanak, K. M., 2005: Numerical simulation of dust devil-scale vortices. Quart. J. Roy. Meteor. Soc., 131, 1271-1292.
12. Lewellen, D. C., and W. S. Lewellen, 2007a: Near-surface intensification of tornado vortices. J. Atmos. Sci., 64, 2176-2194.
13. Lewellen, D. C., and W. S. Lewellen, 2007b: Near-surface vortex intensification through corner flow collapse. J. Atmos. Sci., 64, 2195-2209.
14. Lewellen, D. C., W. S. Lewellen, and J. Xia, 2000: The influence of a local swirl ratio on tornado intensification near the surface. J. Atmos. Sci., 57, 527-544.
15. Lewellen, D. C., B. Gong, and W. S. Lewellen, 2004: Effects of debris on near-surface tornado dynamics. Preprints, 22nd Conf. on Severe Local Storms, Hyannis, MA, Amer. Meteor. Soc., 15.5. [Available online at http://ams.confex.com/ams/pdfpapers/81449.pdf.]
16. L,ewellen, W. S., D. C. Lewellen, and R. I. Sykes, 1997: Large-eddy simulation of a tornado's interaction with the surface. J. Atmos. Sci., 54, 581-605.
17. Magsig, M. A., and J. T. Snow, 1998: Long-distance debris transport by tornadic thunderstorms. Part I: The 7 May 1995 supercell thunderstorm. Mon. Wea. Rev., 126, 1430-1449.
18. Marble, F. E., 1970: Dynamics of dusty gases. Annu. Rev. Fluid Mech., 2, 397-446.
19. Owen, P. R., 1964: Saltation of uniform grains in air. J. Fluid Mech., 20, 225-242.
20. Press, W. H., S. A. Teukolsky, W. T. Vetterling, and B. P. Flannery, 1992: Numerical Recipes in Fortran 77: The Art of Scientific Computing. 2nd ed. Cambridge University Press, 992 pp.
21. Riber, E., M. Garcia, V. Moureau, H. Pitsch, O. Simonin, and T. Poinsot, 2006: Evaluation of numerical strategies for LES of two-phase reacting flows. Proc. Summer Program 2006, Stanford, CA, Center for Turbulence Research, 197-211.
22. Toigo, A. D., M. I. Richardson, S. P. Ewald, and P. J. Gierasch, 2003: Numerical simulation of Martian dust devils. J. Geophys. Res., 108, 5407, doi:10.1029/2002JE002002.
23. White, F. M., 1991: Viscous Fluid Flow. McGraw-Hill, 614 pp.
24. Yamamoto, Y., M. Potthoff, T. Tanaka, T. Kajishima, and Y. Tsuji, 2001: Large-eddy simulation of turbulent gas-particle flow in a vertical channel: Effect of considering inter-particle collisions. J. Fluid Mech., 442, 303-334.