The Numerical Modeling of Wet Snowfall Events PDF Download
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Author: Claudia Frick
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Claudia Frick
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Alessandro Vigano
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
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Book Description
The present work aims at studying the atmospheric phenomenon of wet-snow accretion to structures. This phenomenon may induce severe damages to structures. Freezing particles which generate wet-snow accretions are characterized by a mixed phase ice/water. The particle state in this framework is quantified by a dimensionless parameter: the liquid water content LWC defined as the ratio of the particle liquid mass to the whole particle mass. This LWC definition is different form the aeronautical one. In this work, wet snow is produced with an ambient temperature below 0°C. Both experimental and numerical approaches are undertaken to investigate the subject. The experimental approach, undertaken in a climatic wind tunnel, is based on the LWC effect on the accretions obtained on a test structure. The particle LWC is tuned by adjusting the ambient temperature of the test chamber. The results are synthesized by a coefficient [beta] defined as the ratio of the accretion mass flux to the snow mass flux. A first numerical model assesses the boundary conditions of the accretion model, i.e. the particle size distribution upstream the structure and the associated LWC. The first part of accretion model concerns the study of the particle behavior close to the structure which is quantified with a Stokes number. The efficiency of particles to impact the structure is synthesized by a dimensionless parameter n1. The analysis of the experimental coefficient [beta] according to n1 is developed. This allows to study the efficiency of particles to stick on the structure as a function of the LWC. The result is synthesized by the n2 coefficient. The second part concerns an attempt to model the accretion shape by the sticking efficiency n2 as a function of the particle-surface angle of impact. A series of perspectives are presented.
Author:
Publisher:
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Category : Hydrology
Languages : en
Pages : 760
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Author: Martin Stoffel
Publisher: vdf Hochschulverlag AG
ISBN: 9783728130648
Category : Mathematics
Languages : en
Pages : 170
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Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 760
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Author: Daryl John Onton
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 262
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Author: Roger Graham Barry
Publisher: Psychology Press
ISBN: 0415071135
Category : Mountain climate
Languages : en
Pages : 261
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Book Description
Fully revised and updated, the second edition ofMountain Weather and Climatecontinues to provide the student and researcher with the definitive reference and guide to weather processes in this complex terrain. Results from recent investigations and other research are incorporated in this edition, and all relevant new literature is fully referenced.
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Publisher: Academic Press
ISBN: 0123964733
Category : Nature
Languages : en
Pages : 787
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Book Description
Snow and Ice-Related Hazards, Risks, and Disasters provides you with the latest scientific developments in glacier surges and melting, ice shelf collapses, paleo-climate reconstruction, sea level rise, climate change implications, causality, impacts, preparedness, and mitigation. It takes a geo-scientific approach to the topic while also covering current thinking about directly related social scientific issues that can adversely affect ecosystems and global economies. Puts the contributions from expert oceanographers, geologists, geophysicists, environmental scientists, and climatologists selected by a world-renowned editorial board in your hands Presents the latest research on causality, glacial surges, ice-shelf collapses, sea level rise, climate change implications, and more Numerous tables, maps, diagrams, illustrations and photographs of hazardous processes will be included Features new insights into the implications of climate change on increased melting, collapsing, flooding, methane emissions, and sea level rise
Author: Paul Kocin
Publisher: Springer Science & Business Media
ISBN: 1878220322
Category : Science
Languages : en
Pages : 829
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Book Description
Designed with researchers, students, and weather observers and enthusiasts in mind, Northeast Snowstorms takes the unique approach of utilizing conventional weather charts and detailed descriptions of individual storms to analyze storms in a multi-disciplinary way. The most comprehensive treatment of winter storms ever compiled, this two-volume set includes case studies, insights, historic photos, and 200 color figures. The extra material on the SpringerExtras server contains five days of complete reanalysis data at 35-km grid resolution and 64 vertical levels for each of the cases. This allows everyone from enthusiasts to students to conduct their own diagnostic studies or research projects for any of the 70 historic cases, from a PC or workstation environment. Instructors take note: this is an excellent tool for creating classroom exercises.
Author: V. Yousefian
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 28
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