![Numerical Models for Predicting the Morphology of a Sand Island [microform] PDF](https://books.google.com/books/content/images/frontcover/i7y2SgAACAAJ?fife=w150-h200)
Author: K. Bruce DeanPublisher: National Library of Canada
ISBN:
Category :
Languages : en
Pages : 183
Book Description
Numerical Models for Predicting the Morphology of a Sand Island [microform]
![Numerical Models for Predicting the Morphology of a Sand Island [microform] PDF](https://books.google.com/books/content/images/frontcover/i7y2SgAACAAJ?fife=w80-h100)
Author: K. Bruce DeanPublisher: National Library of Canada
ISBN:
Category :
Languages : en
Pages : 183
Book Description
Numerical Models for Predicting the Morphology of a Sand Island
Author: K. Bruce DeanCanadiana
Author: An Evaluation of Two Cross-shore Numerical Models in Predicting Subaerial Beach Morphology
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Numerical modeling in the nearshore region has become an important tool in both planning and design for coastal engineers. In recent decades, the complexity of these models has increased as our knowledge of existing processes has matured. However, gaps still remain between what we as engineers understand about the nearshore environment and what actually exists. Due to these uncertainties, modelers have taken different approaches to simulate sediment transport. The objective of this thesis is to evaluate the ability of two cross-shore numerical models, SBEACH and COSMOS, in their ability to predict subaerial beach profile change resulting from storm events. The predicted profiles from each model were compared to actual measured post-storm profiles. Quantitative comparison of results from both models was preformed using BMAP (Beach Morphology Analysis Package). A rating of good, fair, or poor was assigned to the models based on how closely each predicted the measured subaerial profile change. The waterline recession was also analyzed and a rating of reasonable or unreasonable was assigned to each model based on its predicted value. The fundamental difference between the two models is in regards to sediment transport. The SBEACH model predicts sediment transport rates as a function of wave energy dissipation. The COSMOS model utilizes the energetics approach where sediment transport is dependent on mean velocity currents in both the bed and the suspended boundary layers. The results presented within this report show that SBEACH performed equally as well or better in each case. The COSMOS model consistently over predicted erosion on the beach face and recession of the waterline. For the study sites where data was collected for this research, SBEACH is the recommended model by the author.
Digital Terrain Modeling
Author: Zhilin LiPublisher: CRC Press
ISBN: 0203486749
Category : Technology & Engineering
Languages : en
Pages : 337
Book Description
Written by experts, Digital Terrain Modeling: Principles and Methodology provides comprehensive coverage of recent developments in the field. The topics include terrain analysis, sampling strategy, acquisition methodology, surface modeling principles, triangulation algorithms, interpolation techniques, on-line and off-line quality control in data a
Enhancement of the Numerical Model SBEACH for Simulating Beach Profile Evolution in the Offshore
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Engineering structures and activities interfere with the sediment transport and morphological evolution in the coastal zone. Thus, it is necessary to understand, quantify, and predict the behavior of the morphology and how it interacts with such structures and activities when carrying out engineering projects on the coast (e.g., ports). The first step towards assessing the effects of engineering works on coastal morphology is to characterize the morphology itself and the mechanisms that control its evolution. Describing the morphology involves mean properties and trends as well as parameters quantifying a wide range of features that occur at many scales. The equilibrium shape of the beach profile or the shoreline, for a given configuration are typical examples of mean properties used to characterize the morphology, especially in engineering investigations. Morphological features in the coastal zone range from ripples to barrier islands, although it is typically only the feature at the scale of the project that has a potential for interaction with the engineering works and that needs to be studied. Here, the objective is to provide a brief overview of recent research in coastal morphology with the emphasis on quantifying the morphology of sandy beaches and its evolution. Most of the discussion is in the context of modeling, analytical or numerical, since engineering studies typically imply predictions about the future evolution of a particular coastal area and models are key tools in such studies.
Selected Water Resources Abstracts
Author: Selected Water Resources Abstracts
Author: Scale Invariance
Author: Annick LESNEPublisher: Springer Science & Business Media
ISBN: 364215123X
Category : Science
Languages : en
Pages : 406
Book Description
During a century, from the Van der Waals mean field description (1874) of gases to the introduction of renormalization group (RG techniques 1970), thermodynamics and statistical physics were just unable to account for the incredible universality which was observed in numerous critical phenomena. The great success of RG techniques is not only to solve perfectly this challenge of critical behaviour in thermal transitions but to introduce extremely useful tools in a wide field of daily situations where a system exhibits scale invariance. The introduction of scaling, scale invariance and universality concepts has been a significant turn in modern physics and more generally in natural sciences. Since then, a new "physics of scaling laws and critical exponents", rooted in scaling approaches, allows quantitative descriptions of numerous phenomena, ranging from phase transitions to earthquakes, polymer conformations, heartbeat rhythm, diffusion, interface growth and roughening, DNA sequence, dynamical systems, chaos and turbulence. The chapters are jointly written by an experimentalist and a theorist. This book aims at a pedagogical overview, offering to the students and researchers a thorough conceptual background and a simple account of a wide range of applications. It presents a complete tour of both the formal advances and experimental results associated with the notion of scaling, in physics, chemistry and biology.
Lunar Sourcebook
Author: Grant HeikenPublisher: CUP Archive
ISBN: 9780521334440
Category : Science
Languages : en
Pages : 796
Book Description
The only work to date to collect data gathered during the American and Soviet missions in an accessible and complete reference of current scientific and technical information about the Moon.