Results 51 to 60 of about 16,649 (214)

Qualitative properties of the free-boundary of the Reynolds equation in lubrication

Publicacions Matemàtiques, 1989
The hidrodynamic lubrication of a cylindrical bearing is governed by the Reynolds equation that must be satisfied by the preassure of lubricatiog oil. When cavitation occurs we are carried to an elliptic free-boundary problem where the free-boundary separates the lubricated region from the cavited region.
openaire   +6 more sources

Two‐Phase Nanofluid Flow in a Non‐Newtonian Model Past a Deformable Sheet With Magnetized Environmental Effects: Statistical Modeling and ANOVA Analysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This paper presents a comprehensive numerical analysis of magnetohydrodynamic (MHD) Casson nanofluid movement over a permeable, linearly stretching sheet, integrating the contributions of non‐uniform heat generation or absorption and chemical interaction.
Manoj Kumar Sahoo, MD. Shamshuddin, Subhajit Panda, Umair Khan   +3 more
wiley   +1 more source

Numerical Simulation of Waviness in A Circular Ehl Contact, Under Rolling/Sliding [PDF]

, 1995
Surface roughness and/or surface imperfections are well known to significantly affect the performance of concentrated contacts. Helped by improvements in computer hardware and software, related research in the field of Elasto Hydrodynamic Lubrication ...
Lubrecht, A.A., Venner, C.H.
core   +2 more sources

Emerging research directions in nanoparticle‐based foam control for bioprocessing: a bibliometric approach

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Overfoaming remains a critical challenge in industrial bioprocesses, compromising mass transfer, operational stability, and downstream efficiency in bioreactors and wastewater treatment systems. This study provides a bibliometric and scientometric assessment of nanoparticle‐enabled foam control to map technological trends and identify research
Antonio Átila Menezes Ferreira, John Hebert da Silva Felix, Thiago Queiroz da Silva, Larissa Oliveira Araújo, Maria Tayane Barroso dos Santos, Larysse Maria Santiago de Castro, José Cleiton Sousa dos Santos   +6 more
wiley   +1 more source

Effect of slip/no-slip on finite slider bearing using non-Newtonian micropolar fluid [PDF]

Jurnal Tribologi, 2018
In this paper, the modified Reynolds equation of finite slider bearing lubricated with micropolar fluid is numerically solved for the computational aspects of the bearings.
Pentyala S. Rao, Santosh Agarwal
doaj  

A new resistance function for two rigid spheres in a uniform compressible low-Reynolds-number flow [PDF]

, 2006
The pressure moment of a rigid particle is defined as the trace of the first moment of the surface stress acting on the particle. We calculate the pressure moments of two unequal rigid spheres immersed in a uniform compressible linear flow, using twin ...
Brady, John F., Khair, Aditya S., Swaroop, Manuj   +2 more
core   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Physics-informed neural network for hydrodynamic lubrication with film thickness discontinuity

Friction
Recent advancements in physics-informed neural networks (PINNs) have shown promise in solving partial differential equations (PDEs), including those in hydrodynamic lubrication. However, PINNs struggle with film thickness discontinuities because of their
Bochao Guan, Qiang He, Yang Hu, Zhiyuan Zheng, Weifeng Huang   +4 more
doaj   +1 more source

The air gap between tape and drum in a video recorder [PDF]

, 1991
Lubrication with ambient air is not quite generally applied. The best known application is the "oil bearing" in tape recording systems for audio, video and computer applications; where the gap height that is needed for effective lubrication may quite ...
Moes, H.
core   +3 more sources

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

Heat Transfer, EarlyView.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source