Analysis of Inclined Silicone Sheet with Micro Bump and Frictional Force between Sliding Water Droplets on the Sheet

2020 ◽  
Vol 2020 (0) ◽  
pp. S11332
Author(s):  
Chinatsu SAITO ◽  
Kenji YANAGISAWA ◽  
Wataru IWASHITA ◽  
Norihiro OKUMURA
2019 ◽  
Vol 139 (4) ◽  
pp. 205-211
Author(s):  
Kanta Tamaru ◽  
Shinji Yudate ◽  
Ryotaro Ozaki ◽  
Kazunori Kadowaki

2018 ◽  
Author(s):  
Kenshiro Matsui ◽  
Kunio Fujiwara ◽  
Yoshitaka Ueki ◽  
Masahiko Shibahara

2017 ◽  
Vol 2 (77) ◽  
Author(s):  
N.N. Sinitsyn ◽  
D.S. Revyakina ◽  
D.S. Prokopeva ◽  
A.A. Kostyleva ◽  
V.V. Plashenkov

1984 ◽  
Author(s):  
A. LUTZ ◽  
K. MARX ◽  
H. DWYER
Keyword(s):  

2019 ◽  
Vol 22 (2) ◽  
pp. 88-93
Author(s):  
Hamed Khanger Mina ◽  
Waleed K. Al-Ashtrai

This paper studies the effect of contact areas on the transient response of mechanical structures. Precisely, it investigates replacing the ordinary beam of a structure by two beams of half the thickness, which are joined by bolts. The response of these beams is controlled by adjusting the tightening of the connecting bolts and hence changing the magnitude of the induced frictional force between the two beams which affect the beams damping capacity. A cantilever of two beams joined together by bolts has been investigated numerically and experimentally. The numerical analysis was performed using ANSYS-Workbench version 17.2. A good agreement between the numerical and experimental results has been obtained. In general, results showed that the two beams vibrate independently when the bolts were loosed and the structure stiffness is about 20 N/m and the damping ratio is about 0.008. With increasing the bolts tightening, the stiffness and the damping ratio of the structure were also increased till they reach their maximum values when the tightening force equals to 8330 N, where the structure now has stiffness equals to 88 N/m and the damping ratio is about 0.062. Beyond this force value, increasing the bolts tightening has no effect on stiffness of the structure while the damping ratio is decreased until it returned to 0.008 when the bolts tightening becomes immense and the beams behave as one beam of double thickness.


2019 ◽  
Vol 489 (5) ◽  
pp. 478-482
Author(s):  
K. A. Emelyanenko ◽  
S. N. Melnikov ◽  
P. I. Proshin ◽  
A. G. Domantovsky ◽  
A. M. Emelyanenko ◽  
...  

The creation of methods for complete and cost-effective collection of water droplets from an aerosol which arises as a by-product of the low-potential heat uptake from industrial devices, is one of the key tasks of rational use of water resources contributing to the improvement of the environment near large industrial enterprises. This paper shows how the application of materials with extreme wettability and a specific surface topography in spray separators can significantly increase the efficiency of water collection.


Author(s):  
G. Manjunatha ◽  
C. Rajashekhar ◽  
K. V. Prasad ◽  
Hanumesh Vaidya ◽  
Saraswati

The present article addresses the peristaltic flow of a Jeffery fluid over an inclined axisymmetric porous tube with varying viscosity and thermal conductivity. Velocity slip and convective boundary conditions are considered. Resulting governing equations are solved using long wavelength and small Reynolds number approximations. The closed-form solutions are obtained for velocity, streamline, pressure gradient, temperature, pressure rise, and frictional force. The MATLAB numerical simulations are utilized to compute pressure rise and frictional force. The impacts of various physical parameters in the interims for time-averaged flow rate with pressure rise and is examined. The consequences of sinusoidal, multi-sinusoidal, triangular, trapezoidal, and square waveforms on physiological parameters are analyzed and discussed through graphs. The analysis reveals that the presence of variable viscosity helps in controlling the pumping performance of the fluid.


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