Results 51 to 60 of about 3,079,951 (166)

Dual asymmetric centrifugation to prepare cosmetic emulsions and creams: Physico‐chemical and energy considerations

open access: yesInternational Journal of Cosmetic Science, EarlyView.
Dual asymmetric centrifugation (DAC) enables the preparation of stable cosmetic emulsions and structured creams with physicochemical, rheological and textural properties comparable to those of conventional processes. At larger scales, DAC also offers competitive energy efficiency by avoiding heating steps, supporting more sustainable cosmetic ...
A. Verger, M. Azzoug, E. Munnier
wiley   +1 more source

The Rational Design of Space Agreements: How Bilateralism Shapes Powerful States' Design Preferences

open access: yesRegulation &Governance, EarlyView.
ABSTRACT The global governance of outer space relies heavily on international agreements, yet the institutional forms of these agreements remain underexplored. This article introduces a new dataset on various design features of 952 space agreements, offering the first large‐N overview of institutional design in space governance.
Jean‐Frédéric Morin   +2 more
wiley   +1 more source

Design method of a vertical screw conveyor based on Taylor–Couette–Poiseuille stable helical vortex

open access: yesAdvances in Mechanical Engineering, 2017
This article investigates gas–solid two-phase flow in a vertical screw conveyor and analyzes the distribution function of the circumferential velocity of particles in the radial direction.
Sun Xiaoxia, Meng Wenjun, Yuan yuan
doaj   +1 more source

Thermal Radiation and Chemical Reaction Effects on Unsteady Magnetohydrodynamic Third Grade Fluid Flow Between Stationary and Oscillating Plates

open access: yesInternational Journal of Applied Mechanics and Engineering, 2019
An analysis was carried out for an unsteady magnetohydrodynamic(MHD) flow of a generalized third grade fluid between two parallel plates. The fluid flow is a result of the plate oscillating, moving and pressure gradient.
A.S. Idowu, U. Sani
doaj   +1 more source

Influence of Porous‐Layer Permeability and Thickness on Stability and Load‐Bearing Capacity of a Porous air Bearing

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The paper deals with the simulation of porous journal bearings by solving the Reynolds and Darcy equations in conjunction with the continuity equation. To find the solution, the solution domain is discretized using the finite volume method.
Laurenz Stellmach   +2 more
wiley   +1 more source

Contribution of advetion, turbulent transport and diffusion terms to Nusselt number and torque coefficient in Taylor-Couette flow

open access: yesJournal of Thermal Science and Technology, 2016
Contributions of the advection, turbulent transport and diffusion terms to the Nusselt number and the torque coefficient in the Taylor-Couette flow were evaluated. Integrating the energy equation in the Taylor-Couette flow twice gave an equation in which
Akihiro OHSAWA   +2 more
doaj   +1 more source

Caribbean plate tilted and actively dragged eastwards by low-viscosity asthenospheric flow

open access: yesNature Communications, 2021
Here, the authors follow a new approach using analytic solutions for Poiseuille-Couette channel flow to compute asthenospheric viscosities under the Caribbean.
Yi-Wei Chen   +4 more
doaj   +1 more source

Comparative assessment of volume‐of‐fluid (VOF) multiphase solvers for viscoplastic flow over grooved patterned surfaces

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 11, Page 5892-5909, November 2026.
Abstract Accurately simulating multiphase flows at low capillary numbers remains challenging due to spurious currents and interface discretization errors. We present a systematic comparison of four volume‐of‐fluid (VOF) solvers within the OpenFOAM framework for pressure‐driven Poiseuille–Bingham flow over grooved surfaces: interFoam with classical ...
Amir Joulaei   +2 more
wiley   +1 more source

Nonlinear optimal perturbations in a Couette flow: bursting and transition [PDF]

open access: yes, 2013
This paper provides the analysis of bursting and transition to turbulence in a Couette flow, based on the growth of nonlinear optimal disturbances. We use a global variational procedure to identify such optimal disturbances, defined as those initial ...
DE PALMA, Pietro, CHERUBINI, Stefania
core   +1 more source

Supercritical carbon dioxide Taylor–Couette–Poiseuille flow heat transfer

open access: yes, 2022
Taylor–Couette–Poiseuille flow commonly occurs in rotating machinery in the annulus between the outer casing and rotating shaft as part of lubrication or thermal management systems.
Jahn, Ingo   +2 more
core   +1 more source

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