TY - GEN AU - Baldas,Lucien AU - Colin,Stéphane TI - Gas Flows in Microsystems SN - books978-3-03921-543-0 PY - 2019/// PB - MDPI - Multidisciplinary Digital Publishing Institute KW - preconcentrator KW - UV absorption KW - n/a KW - bearing characteristics KW - ultraviolet light-emitting diode (UV LED) KW - resonant micro-electromechanical-systems (MEMS) KW - heat sinks KW - measurement and control KW - flow choking KW - mixing length KW - gas flows in micro scale KW - BTEX KW - kinetic theory KW - PID detector KW - ethylbenzene and xylene (BTEX) KW - computational fluid dynamics (CFD) KW - OpenFOAM KW - direct simulation Monte Carlo (DSMC) KW - thermally induced flow KW - vacuum micropump KW - miniaturization KW - gaseous rarefaction effects KW - modelling KW - volatile organic compound (VOC) detection KW - supersonic microjets KW - slip flow KW - Nano-Electro-Mechanical Systems (NEMS) KW - micro-mirrors KW - micro-scale flows KW - microfabrication KW - Knudsen pump KW - microfluidic KW - microfluidics KW - hollow core waveguides KW - capillary tubes KW - gas mixing KW - advanced measurement technologies KW - DSMC KW - Micro-Electro-Mechanical Systems (MEMS) KW - microchannels KW - miniaturized gas chromatograph KW - Pitot tube KW - multi-stage micromixer KW - analytical solution KW - pressure drop KW - micro-mixer KW - thermal transpiration KW - photoionization detector KW - FE analysis KW - gas mixtures KW - spectrophotometry KW - Knudsen layer KW - pulsed flow KW - Fanno flow KW - integrated micro sensors KW - binary gas mixing KW - modified Reynolds equation KW - rarefied gas flow KW - rarefied gas flows KW - backward facing step KW - modular micromixer KW - fractal surface topography KW - underexpansion KW - electronic cooling KW - splitter KW - compressibility KW - photolithography KW - Benzene KW - out-of-plane comb actuation KW - gas sensors KW - aerodynamic effect KW - fluid damping KW - toluene KW - control mixture composition N1 - Open Access N2 - 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 UR - https://mdpi.com/books/pdfview/book/1748 UR - https://directory.doabooks.org/handle/20.500.12854/48289 ER -