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Kinetic Theory Of Cloud Droplet Growth By Condensation
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Book Synopsis Kinetic Theory of Cloud Droplet Growth by Condensation by : Norman F. Robinson
Download or read book Kinetic Theory of Cloud Droplet Growth by Condensation written by Norman F. Robinson and published by . This book was released on 1979 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Condensational Droplet Growth in Rarefied Quiescent Vapor and Forced Convective Conditions by : Sushant Anand
Download or read book Condensational Droplet Growth in Rarefied Quiescent Vapor and Forced Convective Conditions written by Sushant Anand and published by . This book was released on 2011 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase Heat transfer is ubiquitous in diverse fields of application such as cooling systems, micro and mini power systems and many chemical processes. By now, single phase dynamics are mostly understood in their applications in vast fields, however multiphase systems especially involving phase changes are still a challenge. Present study aims to enhance understanding in this domain especially in the field of condensation heat transfer. Of special relevance to present studies is study of condensation phenomenon for detection of airborne nanoparticles using heterogeneous nucleation. Detection of particulate matter in the environment via heterogeneous condensation is based on the droplet growth phenomenon where seeding particles in presence of supersaturated vapor undergo condensation on their surface and amplify in size to micrometric ranges, thereby making them optically visible. Previous investigations show that condensation is a molecular exchange process affected by mean free path of vapor molecules ([lambda]) in conjunction with size of condensing droplet (d), which is measured in terms of Knudsen number (Kn=[lambda]/d). In an event involving heterogeneous nucleation with favorable thermodynamic conditions for condensation to take place, the droplet growth process begins with accretion of vapor molecules on a surface through random molecular collision (Kn>1) until diffusive forces start dominating the mass transport process (Kn“1). Knowledge of droplet growth thus requires understanding of mass transport in both of these regimes. Present study aims to understand the dynamics of the Microthermofluidic sensor which has been developed, based on above mentioned fundamentals. Using continuum approach, numerical modeling was carried to understand the effect of various system parameters for improving the device performance to produce conditions which can lead to conditions abetting condensational growth. The study reveals that the minimum size of nanoparticle which can be detected is critically dependent upon controlling wall geometry and size, wall temperature, flow rate and relative humidity of nanoparticle laden air stream. Droplet growths rates and sizes have been predicted based on different models. The efficacy of the device under various conditions has been measured in terms of its ability to activate nanoparticles of different sizes. Since the condensation mechanism is dependent upon the Knudsen regime in which droplets are growing via condensation, special consideration was made to understand their behavior in large Knudsen number conditions. For this purpose, ESEM was used to study condensation on a bare surface. Droplet growth obtained as a function of time reveals that the rate of growth decreases as the droplet increases in size. The experimental results obtained from these experiments were matched with theoretical description provided by a model based on framework of kinetic theory. Evidence was also found which establishes the presence of submicroscopic droplets nucleating and growing in between microscopic droplets for partially wetting case.
Book Synopsis An Exploration of Cloud Droplet Growth by Condensation and Collision-coalescence in a Convection-cloud Chamber by :
Download or read book An Exploration of Cloud Droplet Growth by Condensation and Collision-coalescence in a Convection-cloud Chamber written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Atmospheric clouds are crucial to weather and climate, and the rate at which droplets collide and coalesce to form precipitation is one of the fundamental controlling processes. The convection-cloud chamber allows the interactions between aerosols and cloud droplets produced by condensation to be investigated within a turbulent environment. Studying the full range of microphysical conditions in atmospheric clouds is not possible, however, unless conditions for droplet growth by collision and coalescence are also achieved. In this study, we explore the conditions favorable to collision-coalescence growth in convection-cloud chambers, extending previous work on steady-state droplet size distributions due to condensation alone. We obtain analytic expressions for cloud droplet collision-coalescence rates, and for the functional form of droplet size distributions themselves. We derive several scaling laws and demonstrate consistency between these theoretical results and Monte-Carlo simulations of growth and precipitation within a convection-cloud chamber. Finally, we gain insights into the role of external parameters such as injection rate, supersaturation forcing, and chamber height in controlling the strength of the collision-coalescence process, and the resulting shape of the droplet size distribution.
Book Synopsis Physics of Drop Formation in the Atmosphere by : I︠U︡. S. Sedunov
Download or read book Physics of Drop Formation in the Atmosphere written by I︠U︡. S. Sedunov and published by John Wiley & Sons. This book was released on 1974 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A study of the initial phase of cloud droplets growth by condensation by : James W. Fitzgerald
Download or read book A study of the initial phase of cloud droplets growth by condensation written by James W. Fitzgerald and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Initial Phase of Cloud Droplet Growth by Condensation: Comparison Between Theory and Observation by : James W. Fitzgerald
Download or read book A Study of the Initial Phase of Cloud Droplet Growth by Condensation: Comparison Between Theory and Observation written by James W. Fitzgerald and published by . This book was released on 1972 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermodynamics, Kinetics and Microphysics of Clouds by : Vitaly I. Khvorostyanov
Download or read book Thermodynamics, Kinetics and Microphysics of Clouds written by Vitaly I. Khvorostyanov and published by Cambridge University Press. This book was released on 2014-08-25 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book advances understanding of cloud microphysics and provides a unified theoretical foundation for modeling cloud processes, for researchers and advanced students.
Book Synopsis Microscopic Approach to Cloud Droplet Growth by Condensation by : Paul Vaillancourt
Download or read book Microscopic Approach to Cloud Droplet Growth by Condensation written by Paul Vaillancourt and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Current Meteorological Theory of Drop Growth by Condensation and Some Comparisons with Experiment by : John C. Carstens
Download or read book Current Meteorological Theory of Drop Growth by Condensation and Some Comparisons with Experiment written by John C. Carstens and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-evolution of a Multidroplet System in the Kinetic Theory of Condensation-vaporization by : N. Bellomo
Download or read book Time-evolution of a Multidroplet System in the Kinetic Theory of Condensation-vaporization written by N. Bellomo and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics and Chemistry of Clouds by : Dennis Lamb
Download or read book Physics and Chemistry of Clouds written by Dennis Lamb and published by Cambridge University Press. This book was released on 2011-04-28 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clouds affect our daily weather and play key roles in the global climate. Through their ability to precipitate, clouds provide virtually all of the fresh water on Earth and are a crucial link in the hydrologic cycle. With ever-increasing importance being placed on quantifiable predictions - from forecasting the local weather to anticipating climate change - we must understand how clouds operate in the real atmosphere, where interactions with natural and anthropogenic pollutants are common. This textbook provides students - whether seasoned or new to the atmospheric sciences - with a quantitative yet approachable path to learning the inner workings of clouds. Developed over many years of the authors' teaching at Pennsylvania State University, Physics and Chemistry of Clouds is an invaluable textbook for advanced students in atmospheric science, meteorology, environmental sciences/engineering and atmospheric chemistry. It is also a very useful reference text for researchers and professionals.
Download or read book SIPRE Report written by and published by . This book was released on with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Drop Growth in a Supersaturated Vapor by : Roger Buecher
Download or read book Drop Growth in a Supersaturated Vapor written by Roger Buecher and published by . This book was released on 1965 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Using kinetic theory and the thermodynamics of phase transitions, a method is derived for finding the growth rate and temperature increase of a droplet in water vapor which has been supersaturated by the expansion of a cloud chamber. Calculations are performed for a specific numerical example and compared to other work in this field"--Abstract, leaf [ii].
Book Synopsis Cloud Particle Growth by the Combined Effects of Condensation and Collection by : Edwin X. Berry
Download or read book Cloud Particle Growth by the Combined Effects of Condensation and Collection written by Edwin X. Berry and published by . This book was released on 1964 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cloud Drop Growth by Condensation and Coalescence in the Transition Range by : Qing Xia
Download or read book Cloud Drop Growth by Condensation and Coalescence in the Transition Range written by Qing Xia and published by . This book was released on 2000 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Short Course in Cloud Physics by : M.K. Yau
Download or read book A Short Course in Cloud Physics written by M.K. Yau and published by Elsevier. This book was released on 1996-05-15 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers essential parts of cloud and precipitation physics and has been extensively rewritten with over 60 new illustrations and many new and up to date references. Many current topics are covered such as mesoscale meteorology, radar cloud studies and numerical cloud modelling, and topics from the second edition, such as severe storms, precipitation processes and large scale aspects of cloud physics, have been revised. Problems are included as examples and to supplement the text.