The Fluid Dynamics of Tornadoes

Because of the difficulty in making measurements under controlled conditions, most of what is known about the fluid dynamics of tornadoes comes from laboratory experiments that produce vortices with features similar to those observed in a tornado. Numerical simulation of laboratory experiments has become a valuable analytical tool owing to the greater ease of extracting data. The success of the numerical simulations has inspired better-defined numerical experiments capable of quantitatively describing the basic features of observed tornado vortices and has motivated simple fluid dynamical explanations. The present article reviews the state of knowledge concerning the fluid dynamics of tornadoes as found in laboratory and numerical analogs.

[1]  Axisymmetric Vortex Simulations with Various Turbulence Models , 2010 .

[2]  Erik N. Rasmussen,et al.  The Second Verification of the Origins of Rotation in Tornadoes Experiment: VORTEX2 , 2012 .

[3]  J. Wyngaard Turbulence in the Atmosphere: Contents , 2010 .

[4]  D. Lilly,et al.  The Carbonated-water Tornado Vortex , 1963 .

[5]  B. Fiedler Suction vortices and spiral breakdown in numerical simulations of tornado‐like vortices , 2009 .

[6]  T. Brooke Benjamin,et al.  Theory of the vortex breakdown phenomenon , 1962, Journal of Fluid Mechanics.

[7]  Richard Rotunno,et al.  Numerical Simulation of a Laboratory Vortex , 1977 .

[8]  Brian F. Farrell,et al.  The Structure and Dynamics of Tornado-Like Vortices , 1999 .

[9]  R. Trapp,et al.  Vortex Lines within Low-Level Mesocyclones Obtained from Pseudo-Dual-Doppler Radar Observations , 2008 .

[10]  R. Wakimoto,et al.  The LaGrange Tornado during VORTEX2. Part I: Photogrammetric Analysis of the Tornado Combined with Single-Doppler Radar Data , 2011 .

[11]  Neil B. Ward,et al.  The Exploration of Certain Features of Tornado Dynamics Using a Laboratory Model , 1972 .

[12]  Joshua Wurman,et al.  The Multiple-Vortex Structure of a Tornado , 2002 .

[13]  Joseph B. Klemp,et al.  DYNAMICS OF TORNADIC THUNDERSTORMS , 1987 .

[14]  W. S. Lewellen,et al.  Boundary layers and their interactions in rotating flows , 1966 .

[15]  Paul Markowski,et al.  Tornado maintenance investigated with high-resolution Dual-Doppler and EnKF analysis , 2012 .

[16]  B. Fiedler On Modelling Tornadoes in isolation from the Parent Storm , 1995 .

[17]  R. Rotunno Vorticity dynamics of a convective swirling boundary layer , 1980, Journal of Fluid Mechanics.

[18]  Wen-Chau Lee,et al.  Tropical Cyclone Kinematic Structure Retrieved from Single-Doppler Radar Observations. Part I: Interpretation of Doppler Velocity Patterns and the GBVTD Technique , 1999 .

[19]  Richard Rotunno,et al.  A Study in Tornado-Like Vortex Dynamics , 1979 .

[20]  Charles A. Doswell,et al.  Low-Level Winds in Tornadoes and Potential Catastrophic Tornado Impacts in Urban Areas , 2008 .

[21]  Richard Rotunno,et al.  A comparative study of atmospheric and laboratory-analogue numerical tornado-vortex models , 2006 .

[22]  D. Nolan A New Scaling for Tornado-Like Vortices , 2005 .

[23]  P. Markowski,et al.  Mesoscale Meteorology in Midlatitudes , 2010 .

[24]  J. Snow,et al.  On the Kinematics and Dynamics of the 18 July 1986 Minneapolis Tornado , 1988 .

[25]  S. Leibovich THE STRUCTURE OF VORTEX BREAKDOWN , 1978 .

[26]  Phillip Smith,et al.  Direct and indirect effects of latent heat release on a synoptic-scale wave system , 1988 .

[27]  Robert Davies-Jones,et al.  The Dependence of Core Radius on Swirl Ratio in a Tornado Simulator , 1973 .

[28]  Curtis R. Alexander,et al.  Updated mobile radar climatology of supercell tornado structures and dynamics , 2008 .

[29]  J. Xia,et al.  The Influence of a Local Swirl Ratio on Tornado Intensification near the Surface , 2000 .

[30]  L. R. Stein,et al.  Structural Analysis of Tornado-Like Vortices , 1974 .

[31]  Erik N. Rasmussen,et al.  Fine-Scale Doppler Radar Observations of Tornadoes , 1996, Science.

[32]  R. Gall,et al.  A Two-Dimensional Linear Stability Analysis of the Multiple Vortex Phenomenon , 1984 .

[33]  B. Fiedler Wind‐speed limits in numerically simulated tornadoes with suction vortices , 1998 .

[34]  W. S. Lewellen,et al.  Large-Eddy Simulation of a Tornado’s Interaction with the Surface , 1997 .

[35]  H. Bluestein Advances in applications of the physics of fluids to severe weather systems , 2007 .

[36]  R. Rotunno A note on the stability of a cylindrical vortex sheet , 1978, Journal of Fluid Mechanics.

[37]  Richard Rotunno,et al.  A Theory for the Maximum Windspeeds in Tornado-like Vortices , 1986 .

[38]  Wen-Chau Lee,et al.  Diagnosed Three-Dimensional Axisymmetric Structure of the Mulhall Tornado on 3 May 1999 , 2005 .

[39]  R. Rotunno An Investigation of a Three-Dimensional Asymmetric Vortex , 1984 .

[40]  Christopher C. Weiss,et al.  The Structure of Tornadoes near Attica, Kansas, on 12 May 2004: High-Resolution, Mobile, Doppler Radar Observations , 2007 .

[41]  John T. Snow,et al.  Characteristics of Tornado-Like Vortices as a Function of Swirl Ratio: A Laboratory Investigation , 1979 .

[42]  G. Batchelor,et al.  An Introduction to Fluid Dynamics , 1968 .

[43]  On vortex boundary layers , 1985, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[44]  Brian H. Fiedler,et al.  The thermodynamic speed limit and its violation in axisymmetric numerical simulations of tornado‐like vortices , 1994 .

[45]  W. S. Lewellen,et al.  Near-Surface Intensification of Tornado Vortices , 2007 .

[46]  John T. Snow,et al.  Tornado Vortex Simulation at Purdue University , 1977 .

[47]  O. Burggraf,et al.  Boundary Layer Induced by a Potential Vortex , 1971 .

[48]  D. Nolan Three-dimensional instabilities in tornado-like vortices with secondary circulations , 2012, Journal of Fluid Mechanics.

[49]  Richard Rotunno,et al.  Numerical simulation of a laminar end-wall vortex and boundary layer , 1986 .