Results 51 to 60 of about 1,761,923 (152)

Porous Hydrodynamic Journal Bearing Analysis Using Micropolar Fluid in Steady-State Condition

Tribology Online, 2019
The objective of the present work is to study theoretically, the steady-state performance of finite hydrodynamic porous journal bearings under micropolar lubrication. The fluid pressure in porous matrix follows Darcy’s equation.
Ujjal Baidya, Sanjoy Das, Santanu Das
doaj   +1 more source

Hierarchical Assembly as a Design Principle: Structure–Property Relationships Linking Biological Architectures to Functional Aggregate Materials

Aggregate, Volume 7, Issue 9, September 2026.
Biological function arises from aggregates rather than from molecules. Comparing biomimetic systems on a common basis reveals three transferable design rules governing hierarchical assembly, interfacial gradients, and stimulus‐coupled anisotropy, and identifies self‐healing and single‐step multiscale integration as properties that do not transfer to ...
Nafeesa Sarfraz, Sadaf Bibi, Muhammad Ibrar Ahmed, Jawad Hussain, Shahid Iqbal, Imran Mahmood Khan, Ajayan Vinu, Ibrahim Khan   +7 more
wiley   +1 more source

Qualitative properties of the free-boundary of the reynolds equation in lubrication [PDF]

, 1989
The hidrodynamic lubrication of a cylindrical bearing is governed by the Reynolds equation that must be satisfied by the preassure of lubricatiog oil.
Álvarez, S. J., S. J. Álvarez
core   +1 more source

Virial Approximation for Load and Loss in High-Speed Journal Bearings Using Pressurized Gases

Fluids, 2019
We consider steady, laminar, compressible lubrication flows in a high-speed two-dimensional journal bearing governed by the appropriate Reynolds equation. The thermodynamic states correspond to pressurized gases and are in the single-phase regime. Simple
Ssu-Ying Chien, Mark S. Cramer
doaj   +1 more source

A new drag and lift correlation for spherocylinders from fully resolved Immersed Boundary Method

AIChE Journal, Volume 72, Issue 9, September 2026.
Abstract Many industrial processes deal with non‐spherical particles, e.g., mineral mining and biomass conversion. It is crucial to understand the particles' hydrodynamics to control and optimize these processes. To extend the current state‐of‐the‐art from arrays of spherical particles to spherocylindrical particles, we performed extensive particle ...
A. H. Huijgen, Y. Sterkenburgh, Y. Tang, N. G. Deen, M. W. Baltussen   +4 more
wiley   +1 more source

Numerical Study of MHD Hybrid Nanofluid Flow With Multiple Slip Effects Over a Variable Porous Stretching Surface

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 5, September/October 2026.
ABSTRACT This work discusses the thermal performance of magnetized hybrid nanofluid flow over a variable porous stretchable surface, emphasizing the underlying physical mechanisms governing heat and mass transfer. The Cattaneo–Christov flux model is used in place of Fourier's and Fick's laws to incorporate relaxation effects, ensuring a more realistic ...
Mounirah Areshi, Abdul Bariq, Salemah A. Almutlak, Fahad Maqbul Alamrani, Zehba Raizah, Anwar Saeed   +5 more
wiley   +1 more source

Existence and uniqueness of solutions to the compressible Reynolds lubrication equation [PDF]

, 1986
We prove the existence of a solution to the compressible Reynolds lubrication equation and we show that our solution is unique in the class of nonnegative solutions (under some additional hypotheses, we prove that our solution is unique among all weak ...
Luskin, M, Chipot, M
core   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 5, September/October 2026.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Use of the Degenerated Reynolds Equation in Solving the Microchannel Flow Problem

, 2005
In this paper, the author proposes that the generalized Reynolds equation employed in the gas film lubrication problems, where the flow rates of the Poiseuille flow are calculated from the Boltzmann equation, can be degenerated for solving the ...
Shen, C (reprint author), Chinese Acad Sci, Inst Mech, Lab High Temp Gas Dynam, 15 Zhongguancun Rd, Beijing 100080, Peoples R China., 沈青   +1 more
core   +1 more source

Influence of Wall Porosity and Surfaces Roughness on the Steady Performance of an Externally Pressurized Hydrostatic Conical Bearing Lubricated by a Rabinowitsch Fluid

International Journal of Applied Mechanics and Engineering, 2017
In the paper, the influence of both the bearing surfaces roughness as well as porosity of one bearing surface on the pressure distribution and load-carrying capacity of a curvilinear, externally pressurized, thrust bearing is discussed.
A. Walicka, E. Walicki, P. Jurczak, J. Falicki   +3 more
doaj   +1 more source