Effect of dimensionless frequency on steady flows excited by fluid oscillation in wavy channel

2019 ◽  
Vol 31 (10) ◽  
pp. 103604 ◽  
Author(s):  
Stanislav Subbotin ◽  
Victor Kozlov ◽  
Mariya Shiryaeva
Keyword(s):  
Dimensionless Frequency ◽  
Steady Flows ◽  
Wavy Channel ◽  
Fluid Oscillation

Axisymmetric steady flows in astrophysics

2003 ◽  
Vol 173 (11) ◽  
pp. 1247 ◽  
Author(s):  
Vasilii S. Beskin
Keyword(s):  
Steady Flows

scholarly journals Direct Numerical Simulation of Turbulent Flow in a Wavy Channel.

1998 ◽  
Vol 41 (2) ◽  
pp. 447-453 ◽  
Author(s):  
Takashi OHTA ◽  
Yutaka MIYAKE ◽  
Takeo KAJISHIMA
Keyword(s):  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Turbulent Flow ◽  
Wavy Channel

Cool electron beam steady flows

1987 ◽  
Vol 30 (6) ◽  
pp. 1814 ◽  
Author(s):  
Peter Amendt ◽  
Harold Weitzner
Keyword(s):  
Electron Beam ◽  
Steady Flows

scholarly journals Rotational Particle Separation in Solutions: Micropolar Fluid Theory Approach

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1072
Author(s):  
Vladimir Shelukhin
Keyword(s):  
Mathematical Model ◽  
Rotational Diffusion ◽  
Particle Separation ◽  
Theory Approach ◽  
Steady Flows ◽  
Concentric Cylinder ◽  
Polar Fluid ◽  
Fluid Theory ◽  
Couette Cell ◽  
Granular Fluid

We develop a new mathematical model for rotational sedimentation of particles for steady flows of a viscoplastic granular fluid in a concentric-cylinder Couette geometry when rotation of the Couette cell inner cylinder is prescribed. We treat the suspension as a micro-polar fluid. The model is validated by comparison with known data of measurement. Within the proposed theory, we prove that sedimentation occurs due to particles’ rotation and rotational diffusion.

scholarly journals Forced Convection in Wavy Microchannels Porous Media Using TiO2 and Al2O3-Cu Nanoparticles in Water Base Fluids: Numerical Results

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 654
Author(s):  
Kholoud Mohamed Elsafy ◽  
Mohamad Zaid Saghir
Keyword(s):  
Reynolds Number ◽  
Forced Convection ◽  
Water Solution ◽  
Evaluation Criteria ◽  
Heat Extraction ◽  
Straight Channel ◽  
Cu Nanoparticles ◽  
Wavy Channel ◽  
Water Base ◽  
Hybrid Fluid

In the present work, an attempt is made to investigate the performance of three fluids with forced convection in a wavy channel. The fluids are water, a nanofluid of 1% TiO2 in a water solution and a hybrid fluid which consists of 1% Al2O3-Cu nanoparticles in a water solution. The wavy channel has a porous insert with a permeability of 10 PPI, 20 PPI and 40 PPI, respectively. Since Reynolds number is less than 1000, the flow is assumed laminar, Newtonian and steady state. Results revealed that wavy channel provides a better heat enhancement than a straight channel of the same dimension. Porous material increases heat extraction at the expenses of the pressure drop. The nanofluid of 1% TiO2 in water provided the highest performance evaluation criteria.

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