Results 271 to 280 of about 1,439,489 (335)

Homogeneous and heterogeneous reactions in a nanofluid flow due to a rotating disk of variable thickness using HAM

Mathematics and Computers in Simulation, 2020
Present study deals with the magnetohydrodynamic flow of nanofluid in a rotating disk with variable thickness in the presence of injection / suction parameter. In this paper, water is considered as a base fluid and silver as a nanoparticle.
D. Doh, M. Muthtamilselvan, B. Swathene, E. Ramya   +3 more
semanticscholar   +1 more source

OER Catalyst Durability Tests Using the Rotating Disk Electrode Technique: The Reason Why This Leads to Erroneous Conclusions

, 2020
This study reveals the physical origin of the rapid performance decay when measuring the activity and durability of oxygen evolution reaction (OER) catalysts using the rotating disk electrode (RDE)...
Alexandra Hartig-Weiss, Mohammad Fathi Tovini, H. Gasteiger, Hany A. El-Sayed   +3 more
semanticscholar   +1 more source

Stagnation point flow of Maxwell nanofluid over a permeable rotating disk with heat source/sink

Journal of Molecular Liquids, 2019
In this paper, rotational stagnation-point flow of Maxwell nanofluid over a porous radially stretching/shrinking rotating disk is studied. An innovative revised Buongiorno's nanofluid model is used to track the thermophoresis and Brownian movement of the
J. Ahmed, Masood Khan, L. Ahmad
semanticscholar   +1 more source

Rotating flows over a rotating disk

Ingenieur-Archiv, 1965
Abstract : Local boundary layer approximations of first order are computed for axisymmetric motions which rotate over a rotating disk in the same and opposite directions. The secondary motions, which are produced by the friction forces at the rotating disk, are essentially of pure stagnation type, distorted stagnation type, cell type, and pure wake ...
E. W. Schwiderski, H. J. Lugt
openaire   +1 more source

Dynamics of fluid flow through Soret-Dufour impacts subject to upward and downward motion of rotating disk

, 2020
Flow features are encountered through numerical way using central finite differences approximations and Successive over Relaxation (SOR) method. Fluid flow is generated due to disk rotation, which moves in vertical direction both up and down.
S. A. Shehzad, Z. Abbas, A. Rauf, Zahra Abdelmalek   +3 more
semanticscholar   +1 more source

Modeling heat transfer in fluid flow near a decelerating rotating disk with variable fluid properties

, 2020
Present work formulates the unsteadily revolving fluid flow caused by a rotating porous disk in a variable viscosity fluid. Following an existing paper, the disk angular velocity is assumed to exhibit an inversely linear time dependency.
T. Rafiq, M. Mustafa, M. Farooq
semanticscholar   +1 more source

Stress analysis of rotating disks☆☆☆

Nuclear Engineering and Design, 1965
Abstract The equilibrium of a disk with variable thickness, symmetrical with respect to both its axis and its midplane, is analyzed, under the action of centrifugal and thermal loading. Introducing the customary assumption of plane stress, and neglecting the influence of shear stresses, the differential equilibrium equation is integrated, and stress ...
openaire   +1 more source

A simple approach to one-dimensional convection-diffusion equation and its fractional modification for E reaction arising in rotating disk electrodes

, 2019
A convection-diffusion equation for E reaction arising in rotating disk electrodes is discussed and solved by Taylor series method and Pade approximation.
Ji-Huan He
semanticscholar   +1 more source

An Asymptotic Solution of a Rotating Disk

Journal of Applied Mechanics, 1971
The solution of the problem of a thin circular disk rotating at a constant angular velocity about its axis is obtained as a formal power series of the thickness-diameter ratio. The matching of the inner and outer expansions at a circular edge is carried out in detail for the stress conditions as well as for the displacement conditions.
openaire   +2 more sources

Rotating Disk Electrode Method

2014
In this chapter, to give readers the knowledge how to appropriately use rotating disk electrode (RDE) in their oxygen reduction reaction (ORR) study, fundamentals of both the electron transfer process on electrode surface and diffusion-convection kinetics near the rotating electrode are presented.
Du, Chunyu, Tan, Qiang, Yin, Geping, Zhang, Jiujun   +3 more
openaire   +1 more source