scholarly journals Mode and Torque of Flows around a Rotating Disk in a Cylindrical Casing

2019 ◽  
Vol 501 ◽  
pp. 012058
Author(s):  
T Watanabe
Keyword(s):  
Rotating Disk ◽  
Cylindrical Casing

Visualization of the Surfactant Solution Flow due to a Rotating Disk in a Cylindrical Casing

2003 ◽  
Vol 2003 (0) ◽  
pp. 173
Author(s):  
Mitsunori YOSHIDA ◽  
Motoyuki ITOH ◽  
Shinzi TAMANO ◽  
Kazuhiko YOKOTA
Keyword(s):  
Surfactant Solution ◽  
Rotating Disk ◽  
Solution Flow ◽  
Cylindrical Casing

Confined Swirling Flows of Aqueous Surfactant Solutions Due to a Rotating Disk in a Cylindrical Casing

2008 ◽  
Vol 130 (8) ◽  
Author(s):  
Shinji Tamano ◽  
Motoyuki Itoh ◽  
Mitsunori Yoshida ◽  
Kazuhiko Yokota
Keyword(s):  
Reynolds Number ◽  
Surfactant Solution ◽  
Rotating Disk ◽  
Swirling Flows ◽  
Visualization Technique ◽  
Constant Frequency ◽  
First Normal Stress Difference ◽  
Surfactant Solutions ◽  
Cylindrical Casing ◽  
Elasticity Number

In this study, confined swirling flows of an aqueous surfactant solution due to a rotating disk in a cylindrical casing were investigated using a sectional flow visualization technique and a two-component laser Doppler velocimetry system. The concentrations of aqueous surfactant solutions (C14TASal) are 0.4wt%, 0.8wt%, and 1.2wt%. Rheological properties such as shear viscosity and first normal stress difference of the surfactant solution were measured with a rheometer. The patterns of secondary flow were classified using the Reynolds and elasticity numbers. We revealed that the projection formed near the center of the rotating disk moved up and down at a constant frequency for C14TASal0.8wt% and 1.2wt%, which has not been reported as far as we know. The effects of the Reynolds number, elasticity number, and aspect ratio on the velocity profiles were clarified. It was also found that the region of rigid body rotation existed at the higher Reynolds number tested for C14TASal0.4wt%.

107 Effect of rotating disk acceleration on rotational flow in cylindrical casing

2015 ◽  
Vol 2015.64 (0) ◽  
pp. _107-1_-_107-2_
Author(s):  
Soma ENDO ◽  
Shota HARA ◽  
Takashi WATANABE
Keyword(s):  
Rotating Disk ◽  
Rotational Flow ◽  
Cylindrical Casing

scholarly journals S0540201 Anomalous flows around a rotating disk in a cylindrical casing

2014 ◽  
Vol 2014 (0) ◽  
pp. _S0540201--_S0540201-
Author(s):  
Shota HARA ◽  
Takashi WATANABE ◽  
Hiroyuki FURUKAWA
Keyword(s):  
Rotating Disk ◽  
Cylindrical Casing
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