Water-Alomina nanofluid natural convection in a square cavity with two pairs of source-sink [PDF]
This paper presents a numerical study on the natural convection in a square cavity, with two pair of heat source and sink and filled with a alumina-water nanofluid. heat source and sink have Th and Tc temperatures respectively.
moslem ghasemi+2 more
doaj +1 more source
Vacuum fluctuation force on a rigid Casimir cavity in de Sitter and Schwarzschild-de Sitter spacetime [PDF]
We investigate the net force on a rigid Casimir cavity generated by vacuum fluctuations of electromagnetic field in three cases, de Sitter spacetime, de Sitter spacetime with weak gravitational field and Schwarzschild-de Sitter spacetime. In de Sitter spacetime the resulting net force follows the square inverse law but unfortunately it is too weak to ...
arxiv +1 more source
Coaxial phased array antenna [PDF]
A coaxial antenna array for communicating circularly polarized electromagnetic radiation is disclosed. A pair of open ended antenna cavities is coaxially constructed and operates by excitation of linear radiation elements arranged within each of the ...
Ellis, H., Jr.
core +1 more source
A domain decomposition matrix-free method for global linear stability [PDF]
This work is dedicated to the presentation of a matrix-free method for global linear stability analysis in geometries composed of multi-connected rectangular subdomains.
ALIZARD, Frédéric+2 more
core +5 more sources
Isotherms and Streamlines for 2D Lid Driven Square Cavity
Analysis of lid driven square cavity flow of air with three different ranges of Ri and Re are analyzed using numerically. Adiabatic temperature is maintained at horizontal walls and isothermal temperature is established at the vertical walls in which the top wall is assumed to slide with a uniform speed.
Garepally Srinivas+2 more
openaire +3 more sources
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli+5 more
wiley +1 more source
Numerical simulation of oscillating lid driven square cavity
This paper aim to develop a two-dimensional computational model to study the fluid dynamic behaviour in a square cavity driven by an oscillating lid using staggered grid based finite volume method.
Jagadeesh Varma Indukuri+1 more
doaj
Predicting Sunyaev-Zel'dovich effect observations of galaxy cluster cavities with the Square Kilometre Array [PDF]
Galaxy cluster X-ray cavities are inflated by relativistic jets that are ejected into the intracluster medium by active galactic nuclei (AGN). AGN jets prevent predicted cooling flow establishment at the cluster centre, and while this process is not well understood in existing studies, simulations have shown that the heating mechanism will depend on ...
arxiv +1 more source
Optimal state estimation for cavity optomechanical systems
We demonstrate optimal state estimation for a cavity optomechanical system through Kalman filtering. By taking into account nontrivial experimental noise sources, such as colored laser noise and spurious mechanical modes, we implement a realistic state ...
Aspelmeyer, Markus+5 more
core +1 more source
Natural convection of water near 4°C in a bottom-cooled enclosure [PDF]
A study of natural convection in water-filled square enclosures whose bottom wall is cooled at 0°C, whereas the top wall is partially or entirely heated at a temperature ranging between 10°C and 30°C is performed numerically through a computational code ...
CIANFRINI, Claudio+3 more
core +1 more source