In order to better understand the origin and evolution of relic radio bubbles in clusters of galaxies, we report on an extensive set of 2D MHD simulations of hot buoyant bubbles evolving in a realistic intracluster medium. Our bubbles are inflated near the base of the ICM over a finite time interval from a region whose magnetic field is isolated from the ICM. We confirm both the early conjectur...

Starting from recently years, microfluidics devices have been widely used to build the biomedical devices and micro fuel cells. In the research on microfludics, high speed camera is widely used to record the motion of liquid bubbles in the microchannel, based on which the dynamics of bubbles can be interpreted. However, the mechanical vibration of the system causes the channel to deviate from i...

At altitude, bubbles are known to form and grow in blood and tissues causing altitude decompression sickness. Previous reports indicate that treatment of decompression sickness by means of oxygen breathing at altitude may cause unwanted bubble growth. In this report we visually followed the in vivo changes of micro air bubbles injected into adipose tissue of anesthetized rats at 101.3 kPa (sea ...

Abstract In bubble-assisted Liquid Hole Multipliers (LHM), developed for noble-liquid radiation detectors, the stability of bubble and electro-mechanical properties liquid-to-gas interface play a dominant role in detector performance. A model is proposed to evaluate static equilibrium configurations sustained underneath perforated electrode immersed liquid. For first time bubbles were optically...

This Review summarizes the progress in research on flow structure and aerodynamic characteristics of an airfoil at a low Reynolds number encountered by near-space low-speed aircrafts micro-air vehicles. The structures several kinds laminar separation bubbles their effect are discussed drawing experimental numerical results reported past few decades. transition process bubble is detailed from va...

In this research, the effect of bubble surface area flux, Sb, and particle size on flotation rate constant, k, of pyrite (FeS2) particles was studied using bubble-particle interactions. The bubble-particle collision, attachment and detachment efficiencies were calculated under different flow regimes. The k increased with increase in the collision efficiency and decreas...

This paper explores several issues important to the thermal design of single-phase and two-phase micro-channel heat sinks. The first part of the paper concerns single-phase heat transfer in rectangular micro-channels. Experimental results are compared with predictions based on both numerical as well as fin analysis models. While the best agreement between predictions and experimental results wa...

We present the results of an experimental and computational study of the physics and chemistry of cavitation-ignition bubble combustion (CIBC), a process that occurs when combustible gaseous mixtures are ignited by the high temperatures found inside a rapidly collapsing bubble. The CIBC process is similar to that in a diesel engine. However, the length scales are very small (μm to nm) and the t...