Micro and Nanoflows

Micro  and Nanoflows

This book describes physical, mathematical and experimental methods to model flows in micro- and nanofluidic devices.

Author: Valery Ya. Rudyak

Publisher: Springer

ISBN: 9783319755236

Category: Science

Page: 241

View: 379

This book describes physical, mathematical and experimental methods to model flows in micro- and nanofluidic devices. It takes in consideration flows in channels with a characteristic size between several hundreds of micrometers to several nanometers. Methods based on solving kinetic equations, coupled kinetic-hydrodynamic description, and molecular dynamics method are used. Based on detailed measurements of pressure distributions along the straight and bent microchannels, the hydraulic resistance coefficients are refined. Flows of disperse fluids (including disperse nanofluids) are considered in detail. Results of hydrodynamic modeling of the simplest micromixers are reported. Mixing of fluids in a Y-type and T-type micromixers is considered. The authors present a systematic study of jet flows, jets structure and laminar-turbulent transition. The influence of sound on the microjet structure is considered. New phenomena associated with turbulization and relaminarization of the mixing layer of microjets are discussed. Based on the conducted experimental investigations, the authors propose a chart of microjet flow regimes. When addressing the modeling of microflows of nanofluids, the authors show where conventional hydrodynamic approaches can be applied and where more complicated models are needed, and they analyze the hydrodynamic stability of the nanofluid flows. The last part of the book is devoted the statistical theory of the transport processes in fluids under confined conditions. The authors present the constitutive relations and the formulas for transport coefficients. In conclusion the authors present a rigorous analysis of the viscosity and diffusion in nanochannels and in porous media.
Categories: Science

Microflows and Nanoflows

Microflows and Nanoflows

This book provides a comprehensive summary of these changes describing fluid flow in micro and nano configurations.

Author: George Em Karniadakis

Publisher: Springer Science & Business Media

ISBN: 0387221972

Category: Mathematics

Page: 888

View: 999

Subject area has witnessed explosive growth during the last decade and the technology is progressing at an astronomical rate. Previous edition was first to focus exclusively on flow physics within microdevices. It sold over 900 copies in North America since 11/01. New edition is 40 percent longer, with four new chapters on recent topics including Nanofluidics.
Categories: Mathematics

Gas Flows in Microsystems

Gas Flows in Microsystems

[CrossRef] Rudyak, V.Y.; Aniskin, V.M.; Maslov, A.A.; Minakov, A.V.; Mironov, S.G. Micro- and Nanoflows. Modeling and Experiment; Thess, A., Ed.; Fluid Mechanics and Its Applications; Springer International Publishing: Cham, Switzerland ...

Author: Lucien Baldas

Publisher: MDPI

ISBN: 9783039215423

Category: Technology & Engineering

Page: 220

View: 352

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.
Categories: Technology & Engineering

Proceedings of 2nd International Conference on Fluid Dynamics Aerodynamics 2017

Proceedings of 2nd International Conference on Fluid Dynamics   Aerodynamics 2017

Therefore, modeling the nanofluid flows is the fashion direction in fluid mechanics. However, the standard approaches are ... The main subjects of his research are the nanofluids transport properties and modelling micro- and nanoflows.

Author: ConferenceSeries

Publisher: ConferenceSeries

ISBN:

Category:

Page: 79

View: 293

October 19-20, 2017 Rome, Italy key Topics : Fluid Dynamics, Numerical Methods, CFD Methodology, Geophysical Fluid Dynamics, Heat Transfer System, Aerodynamics, Aero-acoustics, Magneto Hydrodynamics, Aerodynamics Simulations, Biofluid Mechanics, Thermo-Fluid Dynamics, Micro Fluidics,
Categories:

Microflows and Nanoflows

Microflows and Nanoflows

Fundamentals and Simulation George Karniadakis, Ali Beskok, Narayan Aluru ... Theory of the lattice Boltzmann method: Acoustic and thermal properties in two and three dimensions. Phys. Rev. ... Computer experiments on classical fluids.

Author: George Karniadakis

Publisher: Springer Science & Business Media

ISBN: 9780387286761

Category: Mathematics

Page: 818

View: 427

Subject area has witnessed explosive growth during the last decade and the technology is progressing at an astronomical rate. Previous edition was first to focus exclusively on flow physics within microdevices. It sold over 900 copies in North America since 11/01. New edition is 40 percent longer, with four new chapters on recent topics including Nanofluidics.
Categories: Mathematics

Nanophysics Nanomaterials Interface Studies and Applications

Nanophysics  Nanomaterials  Interface Studies  and Applications

15.6 Conclusions A review of the analytical solutions for the pressure-driven Poiseuille flow between the parallel ... Experimental measurements of viscosities of the microfluids and nanofluids in viscosimeters are based on accepted ...

Author: Olena Fesenko

Publisher: Springer

ISBN: 9783319564227

Category: Science

Page: 880

View: 822

This book presents some of the latest achievements in nanotechnology and nanomaterials from leading researchers in Ukraine, Europe, and beyond. It features selected peer-reviewed contributions from participants in the 4th International Science and Practice Conference Nanotechnology and Nanomaterials (NANO2016) held in Lviv, Ukraine on August 24-27, 2016. The International Conference was organized jointly by the Institute of Physics of the National Academy of Sciences of Ukraine, Ivan Franko National University of Lviv (Ukraine), University of Tartu (Estonia), University of Turin (Italy), and Pierre and Marie Curie University (France). Internationally recognized experts from a wide range of universities and research institutions share their knowledge and key results on topics ranging from nanooptics, nanoplasmonics, and interface studies to energy storage and biomedical applications.
Categories: Science

Microfluidic Devices in Nanotechnology

Microfluidic Devices in Nanotechnology

Artificial intelligence can be utilized within the scope of hybrid modeling and provides the tools for reducing the ... N. Hydrodynamic focusing in microchannels under consideration of diffusive dispersion: theories and experiments.

Author: Challa S. S. R. Kumar

Publisher: John Wiley & Sons

ISBN: 1118029224

Category: Technology & Engineering

Page: 360

View: 326

Nanotechnology, especially microfabrication, has been affecting every facet of traditional scientific disciplines. The first book on the application of microfluidic reactors in nanotechnology, Microfluidic Devices in Nanotechnology provides the fundamental aspects and potential applications of microfluidic devices, the physics of microfluids, specific methods of chemical synthesis of nanomaterials, and more. As the first book to discuss the unique properties and capabilities of these nanomaterials in the miniaturization of devices, this text serves as a one-stop resource for nanoscientists interested in microdevices.
Categories: Technology & Engineering

Scour and Erosion

Scour and Erosion

This simulation validates SPH-ALE method for the study of flow through a rough pipe wall as it the case for a HET. The study of flow through a ... An experimental study and modelling of roughness effects on laminar flow in microchannel.

Author: Liang Cheng

Publisher: CRC Press

ISBN: 9781138027329

Category: Technology & Engineering

Page: 836

View: 948

The 7th International Conference on Scour and Erosion (ICSE 2014) was organised by the School of Civil, Environmental and Mining Engineering and the Centre for Offshore Foundation Systems at the University of Western Australia under the guidance of the Technical Committee 213 for Scour and Erosion of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE). This biennial conference draws together leading academics, scientists and engineers engaged in scour and erosion research to present and exchange their latest scientific findings. These proceedings, together with the six previous proceedings dating from 2002, present a rare collection of technical and scientific developments in scour and erosion research which have been established over the last 12 years. This book includes state-of-the-art papers in scour and erosion from ICSE 2014, covering the 6 themes of: internal erosion, sediment transport, advanced numerical modelling of scour and erosion, terrestrial scour and erosion, river/bridge scour and erosion, and marine scour and erosion. The proceedings include 5 keynote lectures from world leading researches cutting across the themes of scour and erosion, together with 87 peer-reviewed papers from 19 countries. This book is ideal for researchers and industry working at the forefront of scour and erosion, both with application to rivers and marine operations.
Categories: Technology & Engineering

Micro Nano Technology Systems for Biomedical Applications

Micro Nano Technology Systems for Biomedical Applications

In microfluidic devices, the Debye length is negligible compared to the channel width (iv) the composition of the channel wall as well as its roughness does not significantly affect the flow at microscales.

Author: Chih-Ming Ho

Publisher: Oxford University Press

ISBN: 9780199219698

Category: Mathematics

Page: 471

View: 481

A collection of chapters, authored by leading experts in the field, on the use of micro and nano technologies for biomedical applications.
Categories: Mathematics

Rarefied Gas Dynamics

Rarefied Gas Dynamics

Wu L, Reese JM, Zhang YH (2014) Solving the Boltzmann equation by the fast spectral method: application to microflows. J Fluid Mech 746:53–84 11. Sugawara A, Yip S, Sirovich L (1968) Spectrum of density fluctuations in gases.

Author: Lei Wu

Publisher: Springer Nature

ISBN: 9789811928727

Category: Science

Page: 293

View: 484

This book highlights a comprehensive description of the numerical methods in rarefied gas dynamics, which has strong applications ranging from space vehicle re-entry, micro-electromechanical systems, to shale gas extraction. The book consists of five major parts: The fast spectral method to solve the Boltzmann collision operator for dilute monatomic gas and the Enskog collision operator for dense granular gas; The general synthetic iterative scheme to solve the kinetic equations with the properties of fast convergence and asymptotic preserving; The kinetic modeling of monatomic and molecular gases, and the extraction of critical gas parameters from the experiment of Rayleigh-Brillouin scattering; The assessment of the fluid-dynamics equations derived from the Boltzmann equation and typical kinetic gas-surface boundary conditions; The applications of the fast spectral method and general synthetic iterative scheme to reveal the dynamics in some canonical rarefied gas flows. The book is suitable for postgraduates and researchers interested in rarefied gas dynamics and provides many numerical codes for them to begin with.
Categories: Science