Results 1 to 10 of about 3,113,308 (121)
Turbulence Modeling of Torsional Couette Flows [PDF]
International Journal of Rotating Machinery, 2008 The present study considers the numerical modeling of the turbulent flow inside a rotor-stator cavity subjected or not to a superimposed throughflow.
Sofia Haddadi, Sébastien Poncet
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A comparative study on the effect of disks geometrical features on the drag torque of a wet friction clutch [PDF]
MATEC Web of Conferences, 2020 In recent years, the need for highly efficient automatic and semiautomatic powertrains has led to the wide use of wet friction clutches as power transmission systems.
Rogkas Nikolaos +6 more
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SPE Polymers, Volume 4, Issue 2, Page 63-79, April 2023., 2023 Abstract Rubber compounds have an increased tendency to flow anomalies depending on the compound ingredients and the processing parameters. Due to wall slip effects, rheological material measurements and the material parameters derived from them are affected by errors, since the fundamental analytical and numerical calculation approaches assume wall ...
Dennis Kleinschmidt, Volker Schöppner
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Chemical Engineering &Technology, Volume 46, Issue 1, Page 95-101, January 2023., 2023 The bulk shear and wall slip of a confined nonpolar lubricant, a complex branched‐hydrocarbon oil, were studied using molecular dynamics simulation. Different temperatures and molecular masses were investigated for a Couette flow. As the number of branches of the liquid molecule increases, the shear stresses and the wall slip increase.
Seyedmajid Mehrnia, Peter F. Pelz
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Nondimensional Characterization of the Operational Envelope of a Wet Friction Clutch
Computation, 2020 In recent years, multidisc wet friction clutches are used in demanding powertrains of automatic and dual clutch transmissions targeting high efficiency and smoothness during gearshift.
Nikolaos Rogkas +4 more
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Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 The actual contact point of a spiral bevel gear pair deviates from the theoretical contact point due to the gear deformation caused by the load. However, changes in meshing characteristics due to the migration of contact points are often ignored in previous studies on the elastohydrodynamic lubrication (EHL) analysis of spiral bevel gears.
Xiaoyu Sun +4 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 Most articles choose the transcendental function B1(rrn) to define the finite Hankel transform, and very few articles choose B0(rrn). The derivations of B0(rrn) and B1(rrn) are also considered the same. In this paper, we find that the derivative formulas for the transcend function BN(rrn) are different and prove the derivative formulas for B0(rrn) and ...
Fang Wang +2 more
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Processing the Vane Shear Flow Data from Couette Analogy
Applied Rheology, 2008 A new procedure is described to convert the vane torque and rotational velocity data into shear stress vs shear rate relationships. The basis of the procedure consists in considering locally the sheared material as a Bingham fluid and computing a ...
Estellé Patrice +3 more
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Shock and Vibration, Volume 2018, Issue 1, 2018., 2018 We proposed a Chebyshev spectral method with a null space approach for investigating the boundary‐value problem of a nonprismatic Euler‐Bernoulli beam with generalized boundary or interface conditions. It is shown here that, with few vital improvements, a Chebyshev spectral collocation approach can be systematically applied to modeling nonprismatic ...
C. P. Hsu +3 more
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Normal Stress Differences and Yield Stresses in Attractive Particle Networks
Advances in Condensed Matter Physics, Volume 2016, Issue 1, 2016., 2016 The nature of attractive particulate networks, yield stresses, and normal stress differences is systematically reviewed, each in terms of the relevant definitions, underlying mechanisms, and current measurement techniques. With this foundation, experimental observations of normal stress differences in some suspensions and colloidal systems are surveyed,
David I. Verrelli +2 more
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