scholarly journals Low-Reynolds-number rising of a bubble near a free surface at vanishing Bond number

2016 ◽  
Vol 28 (6) ◽  
pp. 063102 ◽  
Author(s):  
Marine Guémas ◽  
Antoine Sellier ◽  
Franck Pigeonneau
Keyword(s):  
Reynolds Number ◽  
Free Surface ◽  
Low Reynolds Number ◽  
Bond Number ◽  
Low Reynolds

The thermal signature of a low Reynolds number submerged turbulent jet impacting a free surface

2008 ◽  
Vol 20 (11) ◽  
pp. 115102 ◽  
Author(s):  
K. Peter Judd ◽  
Geoffrey B. Smith ◽  
Robert A. Handler ◽  
Ankur Sisodia
Keyword(s):  
Reynolds Number ◽  
Free Surface ◽  
Low Reynolds Number ◽  
Turbulent Jet ◽  
Low Reynolds ◽  
Thermal Signature

scholarly journals A two-dimensional model of low-Reynolds number swimming beneath a free surface

2011 ◽  
Vol 681 ◽  
pp. 24-47 ◽  
Author(s):  
DARREN CROWDY ◽  
SUNGYON LEE ◽  
OPHIR SAMSON ◽  
ERIC LAUGA ◽  
A. E. HOSOI
Keyword(s):  
Reynolds Number ◽  
Free Surface ◽  
Low Reynolds Number ◽  
Two Dimensional ◽  
Soft Interfaces ◽  
Low Reynolds Number Swimming ◽  
Variable Approach ◽  
Hydrodynamic Coupling ◽  
Low Reynolds ◽  
Mapping Techniques

Biological organisms swimming at low-Reynolds number are often influenced by the presence of rigid boundaries and soft interfaces. In this paper, we present an analysis of locomotion near a free surface with surface tension. Using a simplified two-dimensional singularity model and combining a complex variable approach with conformal mapping techniques, we demonstrate that the deformation of a free surface can be harnessed to produce steady locomotion parallel to the interface. The crucial physical ingredient lies in the nonlinear hydrodynamic coupling between the disturbance flow created by the swimmer and the free boundary problem at the fluid surface.

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