Results 31 to 40 of about 427,149 (103)

Turbulent flow on a planar moving belt and a rotating disk: modelling and comparisons [PDF]

open access: yes, 2007
Modelling of the fully turbulent flow produced on a moving belt and of that induced on a rotating disk is described, for each of which a more analytical approach is adopted than previously seen.
McDarby, JM, Smith, FT
core  

Topology optimization of disk–shaft rotating body under thermomechanical coupling

open access: yesCase Studies in Thermal Engineering
Turbine rotors often operate under harsh conditions, such as high rotational speeds and large temperature gradients, that requires them to withstand complex thermal and centrifugal loads.
Yu Wang, Renfu Li, Xiaowei Liu, Kun Wang
doaj   +1 more source

Inertial torques acting on a spinning paraboloid

open access: yesAIP Advances, 2020
Numerous gyroscopic devices consist of rotating components that manifest gyroscopic effects, i.e., the action of unexplainable inertial torques. The rotating objects in engineering can be designed as a disk, cylinder, rotor, circular cone, sphere ...
R. Usubamatov, A. Arzybaev
doaj   +1 more source

Clearance flow patterns and pressure distribution of a pump-turbine: Measurement and simulation of a rotating disk flow

open access: yesFrontiers in Energy Research, 2022
The clearance flow patterns and pressure distribution determine the clearance axial hydraulic thrust of a pump turbine, which has a substantial impact on the unit axial imbalance.
Xiaoxia Hou   +5 more
doaj   +1 more source

Investigation of a Rotating Shaft with a Novel Integrated Wireless Accelerometer [PDF]

open access: yes, 2010
Rotating shafts are the most critical components of rotating machines such as motors, pumps, engines and turbines. Due to their heavy workloads, defects are more likely to develop during operation.
Gu, Fengshou   +3 more
core   +3 more sources

Note on porous rotating disk flow [PDF]

open access: yes, 2000
We revisit the classical Karman rotating disk problem. A series analysis is used to derive estimates of boundary conditions at the surface. Using these estimates, computed thermal and flow fields for large mass transfer through the disk are readily ...
Kelson, N.   +3 more
core  

On the Viscous Ringed Disk Evolution in the Kerr Black Hole Spacetime

open access: yesUniverse
Supermassive black holes (SMBHs) are observed in active galactic nuclei interacting with their environments, where chaotical, discontinuous accretion episodes may leave matter remnants orbiting the central attractor in the form of sequences of orbiting ...
Daniela Pugliese   +2 more
doaj   +1 more source

Effects of the rotation number on flow and heat transfer in contra-rotating disk cavity with superposed flow

open access: yesAdvances in Mechanical Engineering, 2019
The turbulent fluid flow and convective heat transfer in counter-rotating disk cavity with central axial air inflow and radial air outflow are numerically studied based on the finite volume method.
Shu-xian Chen, Jing-zhou Zhang
doaj   +1 more source

Optical Tip Clearance Measurements as a Tool for Rotating Disk Characterization

open access: yesSensors, 2017
An experimental investigation on the vibrational behavior of a rotating disk by means of three optical fiber sensors is presented. The disk, which is a scale model of the real disk of an aircraft engine, was assembled in a wind tunnel in order to ...
Iker García   +5 more
doaj   +1 more source

Analytical and Numerical Bending Solutions for Thermoelastic Functionally Graded Rotating Disks with Nonuniform Thickness Based on Mindlin’s Theory [PDF]

open access: yesJournal of Stress Analysis, 2017
In this paper, analytical and numerical solutions for thermoelastic functionally graded (FG) rotating disks with non-uniform thickness under lateral pressure are studied. The study is performed based on Mindlin’s theory. Considering the fact that bending
A. Hassani, M. Gholami
doaj   +1 more source

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