Influence of Mach Number on Tornado Corner Flow Dynamics From: Journal of the Atmospheric Sciences | Date: November 15, 2003| Author: Lewellen, D C; Lewellen, W S; Xia, J | Copyright American Meteorological Society Nov 15, 2003. Provided by ProQuest LLC.Copyright information

ABSTRACT

Since maximum Mach numbers in an F5 tornado are expected to, at least, reach ~0.4, a study was undertaken to determine the major potential compressibility effects in such flows. Results from compressible large-eddy simulations of tornado corner flow dynamics are summarized. Comparison with previous incompressible simulations indicates that Mach number effects tend to be modest and may be estimated by an isentropic approximation. As the average maximum Mach number M within the ...

Related newspaper, magazine, and journal articles from HighBeam Research

	Influence of Mach Number on Tornado Corner Flow Dynamics Journal of the Atmospheric Sciences ; ABSTRACT Since maximum Mach numbers in an F5 tornado are expected to, at least, reach ~0.4, a study was undertaken to determine the major potential compressibility effects in such flows. Results from compressible large-eddy simulations of tornado corner flow dynamics are summarized. Comparison with
	Did Germany go supersonic first?(Just for the Record) Airpower ; Our sincere thanks to Dr. Bernd Krag of Braunschweig, Germany, who sent us a very comprehensive and well researched letter outlining Germany's attempts at supersonic flight during World War II. While many high-speed flights were made in such aircraft as the Junkers Ju 287, Arado Ar 234 jet bomber,
	Near-Surface Vortex Intensification through Corner Flow Collapse Journal of the Atmospheric Sciences ; ABSTRACT Results are presented from a large set of large-eddy simulations of a class of unsteady vortex evolution that may sometimes play a role in tornadogenesis or tornado variability. Beginning with a high-swirl parent vortex with an excess of low-swirl flow through the surface/corner/core
	Letters from the Field Soldiers ; ... and send them to: Mail Call, Soldiers, 9325 Gunston Road, Ste. S108, Fort Belvpir, VA 22060-5581, or e-mail: soldiers@belvoir.army.mil For links to the Army News Service and Soldiers Radio Live, visit www.army.mil Get DOD News at www.defenselink.mil
	Non-uniqueness of transonic flow past a flattened airfoil. International Journal of Applied Mathematics & Statistics ; ABSTRACT A numerical analysis of inviscid and viscous transonic flows past a flattened airfoil is performed. Non-unique solutions of boundary value problems for the Euler and Navier-Stokes equations are obtained under certain conditions for flow parameters given on the far-field boundary. Keywords:
	Evaluation of supersonic nozzles for laser micromachining of high-speed steels Journal of Manufacturing Processes ; Abstract The use of gas jets during laser micromachining processes plays an important role in determining machining efficiency. Gas pressures and nozzle stand-off distances are extremely important process parameters when one considers the nature of shock waves in a gas jet impinging on the surface
	Steam Turbines Power ; face=+Bold; The long and short of last-stage bladesface=-Bold; face=+Italic; The use of longer steam turbine last-stage blades (LSBs) reduces the number of low-pressure casings and, thus, a turbine's total installed cost. In many cases longer blades extract more energy from low-pressure steam
	COMPRESSIBLE PIPE FLOW.(Brief Article) Mechanical Engineering-CIME ; Capability: The AFT Arrow 2.0 compressible pipe flow analysis software simultaneously solves the five fundamental equations of flow: mass, momentum, energy, state, and Mach number. Solutions include systems with multiple choke points. Users can select ideal or real gases and isothermal, adiabatic,
	SOUND WAVES CUSTODY TRANSFER InTech ; Ultrasonic meters do not rely on kinetic energy from the fluid. Ultrasonic flowmeters are one of the fastest growing precision flow measurement technologies in the world. They work in a wide range of applications. They've gained popularity as new technological developments have substantially
	A gallon here, a gallon there ...(OPERATIONS) Air Transport World ; REMEMBER THAT SIGNATURE scene from The High and the Mighty, the one where they're tossing all manner of objects out the aft of a DC-4 struggling to make San Francisco? With fuel more than a fourth of operating expenses, the airline industry is a lot like that these days. Carriers are cutting weight

See all results.