Gas Flows In Microsystems
Download Gas Flows In Microsystems PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Gas Flows In Microsystems book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages.
Gas Flows in Microsystems
The last two decades have witnessed a rapid development of microelectromechanical systems (MEMS) involving gas microflows in various technical fields. Gas microflows can, for example, be observed in microheat exchangers designed for chemical applications or for cooling of electronic components, in fluidic microactuators developed for active flow control purposes, in micronozzles used for the micropropulsion of nano and picosats, in microgas chromatographs, analyzers or separators, in vacuum generators and in Knudsen micropumps, as well as in some organs-on-a-chip, such as artificial lungs. These flows are rarefied due to the small MEMS dimensions, and the rarefaction can be increased by low-pressure conditions. The flows relate to the slip flow, transition or free molecular regimes and can involve monatomic or polyatomic gases and gas mixtures. Hydrodynamics and heat and mass transfer are strongly impacted by rarefaction effects, and temperature-driven microflows offer new opportunities for designing original MEMS for gas pumping or separation. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on novel theoretical and numerical models or data, as well as on new experimental results and technics, for improving knowledge on heat and mass transfer in gas microflows. Papers dealing with the development of original gas MEMS are also welcome.
Gas Flows in Microsystems
The last two decades have witnessed a rapid development of microelectromechanical systems (MEMS) involving gas microflows in various technical fields. Gas microflows can, for example, be observed in microheat exchangers designed for chemical applications or for cooling of electronic components, in fluidic microactuators developed for active flow control purposes, in micronozzles used for the micropropulsion of nano and picosats, in microgas chromatographs, analyzers or separators, in vacuum generators and in Knudsen micropumps, as well as in some organs-on-a-chip, such as artificial lungs. These flows are rarefied due to the small MEMS dimensions, and the rarefaction can be increased by low-pressure conditions. The flows relate to the slip flow, transition or free molecular regimes and can involve monatomic or polyatomic gases and gas mixtures. Hydrodynamics and heat and mass transfer are strongly impacted by rarefaction effects, and temperature-driven microflows offer new opportunities for designing original MEMS for gas pumping or separation. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on novel theoretical and numerical models or data, as well as on new experimental results and technics, for improving knowledge on heat and mass transfer in gas microflows. Papers dealing with the development of original gas MEMS are also welcome.
Microsystems Mechanical Design
Author: Francesco De Bona
language: en
Publisher: Springer Science & Business Media
Release Date: 2007-03-23
Nowadays, micromechanics (i.e., mechanics of microsystems) is probably one of the most promising and rapidly growing fields among new emerging technologies. In fact, the possibility of reducing the size of mechanical structures to the micro-domain opens a wide variety of possible applications in the biomedical, aeronautical, and automotive fields, in robotics, in molecular engineering, in fiber optics, and infiuidics technology. One of the main aspects that slows down the development of innovative industrial products based on microsystem technology is the existing lack of engineering tools to allow a reliable design of microsystems . The aim of this book is that of collecting the texts o the lectures given at the CISM course on: Microsystems Mechanical Design, hold in July 2004. The purpose of this course was to introduce the basic tools used in the mechanical design of microsystems, the fabrication methods for these systems, and several applications of this technology. The links between micro- and nanotechnologies were also discussed and light was shed on the potential applications of microsystems to nano-scale manipulation of matter, thus introducing the topic of nano-scale engineering mechanics, which will be fully explored in a future course. This book is arranged in 8 sections. In the first section an introduction on microsystems and the techniques for their fabrication will be presented, with a thoroughly description of surface and bulk micromachining techniques and of other microfabrication processes as LIGA and anoding bonding.