Fluid force identification acting on snake-like robots swimming in viscous fluids

2021 ◽  
Vol 106 ◽  
pp. 103351
Author(s):  
A. Yamano ◽  
K. Shimizu ◽  
M. Chiba ◽  
H. Ijima
Keyword(s):  
Viscous Fluids ◽  
Fluid Force ◽  
Force Identification

Kelvin–Helmholtz creeping flow at the interface between two viscous fluids

2015 ◽  
Vol 55 ◽  
pp. 317
Author(s):  
Lawrence Forbes ◽  
Rhys Paul ◽  
Michael Chen ◽  
David Horsley
Keyword(s):  
Creeping Flow ◽  
Viscous Fluids

scholarly journals A new upper bound for the largest growth rate of linear Rayleigh–Taylor instability

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Changsheng Dou ◽  
Jialiang Wang ◽  
Weiwei Wang
Keyword(s):  
Surface Tension ◽  
Growth Rate ◽  
Upper Bound ◽  
Viscous Fluids ◽  
Instability Condition ◽  
Interface Surface ◽  
Incompressible Viscous Fluids ◽  
Rayleigh Taylor Instability ◽  
Surface Tensor ◽  
Rt Instability

AbstractWe investigate the effect of (interface) surface tensor on the linear Rayleigh–Taylor (RT) instability in stratified incompressible viscous fluids. The existence of linear RT instability solutions with largest growth rate Λ is proved under the instability condition (i.e., the surface tension coefficient ϑ is less than a threshold $\vartheta _{\mathrm{c}}$ ϑ c ) by the modified variational method of PDEs. Moreover, we find a new upper bound for Λ. In particular, we directly observe from the upper bound that Λ decreasingly converges to zero as ϑ goes from zero to the threshold $\vartheta _{\mathrm{c}}$ ϑ c .

Study of kneading pressure and power consumption in a twin-blade planetary mixer for mixing highly viscous fluids

2021 ◽  
pp. 116723
Author(s):  
Jiecai Long ◽  
Yu He ◽  
Xiaobin Zhan ◽  
Zhibin Sun ◽  
Baojun Shen ◽  
...  
Keyword(s):  
Power Consumption ◽  
Viscous Fluids
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