Results 41 to 50 of about 3,600,739 (309)

Mixed convection flow along a curved surface in the presence of exothermic catalytic chemical reaction

open access: yesScientific Reports, 2021
In the current study, the attention is paid on the phenomena of mixed convection flow under the effect of exothermic catalytic chemical reaction along the curved surface. The proposed problem is modeled in nonlinear coupled partial differential equations.
Uzma Ahmad   +4 more
doaj   +1 more source

Unsteady Hydromagnetic Mixed Convection of a Radiating and Reacting Nanofluid in a Microchannel with Variable Properties

open access: yesEngineering Transactions, 2023
Unsteady MHD mixed convection of nanofluid heat transfer in a permeable microchannel with temperature-dependent fluid properties is studied under the influence of a first-order chemical reaction and thermal radiation.
Mesfin Zewde KEFENE   +2 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

The Effects of Mixing, Reaction Rates, and Stoichiometry on Yield for Mixing Sensitive Reactions—Part II: Design Protocols

open access: yesInternational Journal of Chemical Engineering, 2012
Competitive-consecutive and competitive-parallel reactions are both mixing sensitive reactions where the yield of desired product depends on how fast the reactants are brought together. Recent experimental results have suggested that the magnitude of the
Syed Imran A. Shah   +2 more
doaj   +1 more source

Analysis of pressure variation of fluid in bounded circular reservoirs under the “No Flow” outer boundary condition

open access: yesJournal of Applied Sciences and Environmental Management, 2017
Predicting the pressure at the wellbore in bounded circular reservoir has been the hub in the study of Reservoir Engineering. Predicting the pressures outside the reservoir was not an easy task.
ID Erhunmwun, JA Akpobi
doaj   +1 more source

Investigation of nanomaterials in flow of non-Newtonian liquid toward a stretchable surface

open access: yesOpen Physics, 2023
This article features the buoyancy-driven electro-magnetohydrodynamic micropolar nanomaterial flow subjected to motile microorganisms. The flow is engendered via an elongating surface, and the energy relation includes heat source generation ...
El Maati Lamia Abu   +3 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

New complex dimensionless variable in cyclic staircase voltammetry on the rotating disk electrode

open access: yesJournal of Electrochemical Science and Engineering, 2021
Cyclic staircase voltammograms of a simple, reversible oxidation on the rotating disk electrode is analysed by the digital simulation. It is demonstrated that the peak currents and potentials depend on the single dimensionless variable that considers nonlinear relationship between peak currents and the potential increment.
openaire   +5 more sources

Dynamics of a Double Mathematical Pendulum with Variable Mass in Dimensionless Coordinates

open access: yesProcedia Engineering, 2017
Abstract The article presents an analysis of the dynamics of a double mathematical pendulum with variable mass. In the analyzed system, with time, under the influence of gravity, the mass of the upper member of pendulum decreases and the mass of the lower member of pendulum increases. The total mass of the system doesn’t change.
Kwiatkowski, Rafał   +2 more
openaire   +1 more source

A dimensionless analysis of radial heat conduction with variable external convection boundary conditions [PDF]

open access: yesInternational Communications in Heat and Mass Transfer, 2001
Abstract Radial heat conduction in insulated pipes under external convection is usually dealt with great detail in several heat transfer publications. However, an analysis carried out through the graphical representation of the dimensionless characteristic parameters, will allow a better understanding of the phenomenon.
Branco, J. F.   +2 more
openaire   +2 more sources

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