Acoustic gravity tornadoes in the atmosphere
2012 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. 86, no 6Article in journal (Refereed) Published
It is shown that three-dimensional (3D) acoustic gravity waves (AGWs) in the atmosphere can appear in the form of acoustic gravity tornadoes (AGTs) characterized by twisted density structures or density ropes carrying orbital angular momentum. For our purposes, we use a previously obtained 3D wave equation for AGWs, and show that this equation in the paraxial approximation admits solutions in the form of Laguerre-Gauss acoustic gravity vortex beams or AGTs/AG whirls with twisted density structures supporting the dynamics of the AGTs.
Place, publisher, year, edition, pages
Institute of Physics , 2012. Vol. 86, no 6
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-87249DOI: 10.1088/0031-8949/86/06/065403ISI: 000312216200015OAI: oai:DiVA.org:liu-87249DiVA: diva2:587199
Funding Agencies|Deutsche Forschungsgemeinschaft (DFG), Bonn through Research Unit 1048|SH21/3-2|2013-01-142013-01-142013-01-14