Supersonic Air Flow due to Solid-Liquid Impact

Share/Save/Bookmark

Gekle, Stephan and Peters, Ivo R. and Gordillo, Jose Manuel and Meer van der, Devaraj and Lohse, Detlef (2010) Supersonic Air Flow due to Solid-Liquid Impact. Physical Review Letters, 104 (2). 024501. ISSN 0031-9007

[img]
Preview
PDF
455Kb
Abstract:A solid object impacting on liquid creates a liquid jet due to the collapse of the impact cavity. Using visualization experiments with smoke particles and multiscale simulations, we show that in addition, a high-speed air jet is pushed out of the cavity. Despite an impact velocity of only 1  m/s, this air jet attains supersonic speeds already when the cavity is slightly larger than 1 mm in diameter. The structure of the air flow closely resembles that of compressible flow through a nozzle—with the key difference that here the “nozzle” is a liquid cavity shrinking rapidly in time
Item Type:Article
Copyright:© American Physical Society
Faculty:
Science and Technology (TNW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/79234
Official URL:http://dx.doi.org/10.1103/PhysRevLett.104.024501
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 263397