04906nam 2201177z- 450 991036775000332120231214133359.03-03921-543-4(CKB)4100000010106217(oapen)https://directory.doabooks.org/handle/20.500.12854/48289(EXLCZ)99410000001010621720202102d2019 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierGas Flows in MicrosystemsMDPI - Multidisciplinary Digital Publishing Institute20191 electronic resource (220 p.)3-03921-542-6 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.preconcentratorUV absorptionbearing characteristicsultraviolet light-emitting diode (UV LED)resonant micro-electromechanical-systems (MEMS)heat sinksmeasurement and controlflow chokingmixing lengthgas flows in micro scaleBTEXkinetic theoryPID detectorethylbenzene and xylene (BTEX)computational fluid dynamics (CFD)OpenFOAMdirect simulation Monte Carlo (DSMC)thermally induced flowvacuum micropumpminiaturizationgaseous rarefaction effectsmodellingvolatile organic compound (VOC) detectionsupersonic microjetsslip flowNano-Electro-Mechanical Systems (NEMS)micro-mirrorsmicro-scale flowsmicrofabricationKnudsen pumpmicrofluidicmicrofluidicshollow core waveguidescapillary tubesgas mixingadvanced measurement technologiesDSMCMicro-Electro-Mechanical Systems (MEMS)microchannelsminiaturized gas chromatographPitot tubemulti-stage micromixeranalytical solutionpressure dropmicro-mixerthermal transpirationphotoionization detectorFE analysisgas mixturesspectrophotometryKnudsen layerpulsed flowFanno flowintegrated micro sensorsbinary gas mixingmodified Reynolds equationrarefied gas flowrarefied gas flowsbackward facing stepmodular micromixerfractal surface topographyunderexpansionelectronic coolingsplittercompressibilityphotolithographyBenzeneout-of-plane comb actuationgas sensorsaerodynamic effectfluid dampingtoluenecontrol mixture compositionBaldas Lucienauth1300028Colin StéphaneauthBOOK9910367750003321Gas Flows in Microsystems3025869UNINA