Summary: Cavitation is the transition of a fluid into vapour due to ...
Summary: Cavitation is the transition of a fluid into vapour due to local reduction of pressure which is generated by high local flow velocities. The transition of a fluid into vapour also occurs during cooking of water by an increase of the local temperature. The term cavitation is generally reserved for conditions in which the temperature of the bulk fluid is not changed. Although cavitation can occur in many situations this course focuses on ship hydrodynamics and ship propellers. The course is divided into five main groups: physics, types and effects of cavitation as well as calculations and test facilities and techniques. Some of these topics are illustrated with the use of videos. (Study goals:) 1. Reproduce the main lines in a selection of the latest developments in the field of propulsion and resistance hydrodynamics, where the current selection of propulsion and resistance topics includes unsteady hydrodynamics of the flow over a foil, cavitation forms, problems and tools for analysis and design, propulsion systems in a service environment and ship drag reduction by air lubrication. 2. Analyse a hydrodynamic problem in the propulsion and resistance area, into well defined sub problems that can be analysed with state of the art knowledge and tools 3. Select the appropriate theory or tool (either numerical or experimental) for an analysis of the identified problem. 4. Reproduce and present to an audience, the main lines in a contemporary publication from the field of Propulsion and Resistance hydrodynamics. 5. Understand, interpret and react to questions from the audience and the lecturer and in doing so, stimulate the scientific debate.
In dredging, trenching, (deep sea) mining, drilling, tunnel boring and many other ...
In dredging, trenching, (deep sea) mining, drilling, tunnel boring and many other applications, sand, clay or rock has to be excavated. This book gives an overview of cutting theories. It starts with a generic model, which is valid for all types of soil (sand, clay and rock) after which the specifics of dry sand, water saturated sand, clay, atmospheric rock and hyperbaric rock are covered. For each soil type small blade angles and large blade angles, resulting in a wedge in front of the blade, are discussed. For each case considered, the equations/model for the cutting forces, power and specific energy are given. The models are verified with laboratory research, mainly at the Delft University of Technology, but also with data from literature.
This resource provides is a multimeter tutorial as well as an assignment ...
This resource provides is a multimeter tutorial as well as an assignment for students to create a video showing that they understand how to use a multimeter. Its purpose is to get beginning engineering students, with varying levels of experience with a multimeter, to learn and master a multimeter's features and functions.
In dredging, production estimating is carried out mainly with analytical physical models ...
In dredging, production estimating is carried out mainly with analytical physical models of the different dredging processes. Slurry transport of settling slurries and cutting processes in sand, clay and rock are already covered in two other books by the author. Other processes like hopper sedimentation and erosion, water jet fluidization, cutter head spillage, pump/pipeline dynamics and clamshell dredging are covered in this Special Topics Edition. New topics may be added in the near future.
The course focuses on three main dredging processes: the cutting of sand, ...
The course focuses on three main dredging processes: the cutting of sand, clay and rock, the sedimentation process in hopper dredges and the breaching process
This is a travel itinerary featuring 13 historic shipwrecks in waters near ...
This is a travel itinerary featuring 13 historic shipwrecks in waters near Florida, a convergence point for maritime trade routes. Learn about the historical significance of these 13 shipwrecks. See photos and an essay on Florida maritime history.
This document is an overview of the operation, maintenance, and repair of ...
This document is an overview of the operation, maintenance, and repair of a marine jet drive. A brief history of the origin of the jet boat is provided. The characteristics of operating a craft with a jet drive are discussed, along with the advantages and disadvantages of using this type of design. The principles of the pump’s operation are explained as well as considerations for improving its performance. The document concludes with a review of common maintenance and repair procedures.
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