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Titlebook: Elements of hydrodynamicp propulsion; J. A. Sparenberg Book 1984 Martinus Nijhoff Publishers, The Hague 1984 Profil.actuator.display.distr

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發(fā)表于 2025-3-21 18:33:33 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
書目名稱Elements of hydrodynamicp propulsion
編輯J. A. Sparenberg
視頻videohttp://file.papertrans.cn/308/307658/307658.mp4
叢書名稱Mechanics of Fluids and Transport Processes
圖書封面Titlebook: Elements of hydrodynamicp propulsion;  J. A. Sparenberg Book 1984 Martinus Nijhoff Publishers, The Hague 1984 Profil.actuator.display.distr
描述This is a treatment of a number of aspects of the theory of hydrody- namic propulsion. It has been written with in mind technical propulsion systems generally based on lift producing profiles. We assume the fluid, which is admitted in conventional hydrody- namics, to be incompressible. Further we assume the occurring Reynolds numbers to be sufficiently high such that the inertia forces dominate by far the viscous forces, therefore we take the fluid to be inviscid. Of course it must be realized that viscosity plays an important part in a number of phenomena displayed in real flows, such as flow separation at the nose of a profile and the entrainment of fluid by a ship‘s hull. Another ap- proximation which will be used in general is that the problems are linearized. In other words it is assumed that the induced disturbance velocities are sufficiently small, such that their squares can be neglected with respect to these velocities themselves. Hence it is necessary to evaluate the domain of validity of the results with respect to these two a priori assumptions. Anyhow it seems advisable to have first a good understanding of the linearized non-viscous theory before embarking on complica
出版日期Book 1984
關(guān)鍵詞Profil; actuator; display; distribution; efficiency; energy; extraction; flow; fluid; geometry; integral equat
版次1
doihttps://doi.org/10.1007/978-94-009-6086-2
isbn_softcover978-94-009-6088-6
isbn_ebook978-94-009-6086-2Series ISSN 0921-3805
issn_series 0921-3805
copyrightMartinus Nijhoff Publishers, The Hague 1984
The information of publication is updating

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沙發(fā)
發(fā)表于 2025-3-21 23:51:36 | 只看該作者
978-94-009-6088-6Martinus Nijhoff Publishers, The Hague 1984
板凳
發(fā)表于 2025-3-22 03:56:04 | 只看該作者
Elements of hydrodynamicp propulsion978-94-009-6086-2Series ISSN 0921-3805
地板
發(fā)表于 2025-3-22 07:55:37 | 只看該作者
Basic Surgery of the Temporal Bone,We now discuss a number of specific problems concerned with the optimization of propulsion devices. These problems are such that they can be treated by means of the theory of the previous chapter. Our considerations are directed to the determination of the shed free vorticity of the optimum propellers from which follows their bound vorticity.
5#
發(fā)表于 2025-3-22 11:15:15 | 只看該作者
Applications of optimization theory,We now discuss a number of specific problems concerned with the optimization of propulsion devices. These problems are such that they can be treated by means of the theory of the previous chapter. Our considerations are directed to the determination of the shed free vorticity of the optimum propellers from which follows their bound vorticity.
6#
發(fā)表于 2025-3-22 15:51:49 | 只看該作者
7#
發(fā)表于 2025-3-22 19:22:50 | 只看該作者
Manual of Renal Transplantationill experience forces and moments caused by the integrated action of the pressures on its boundary. Inversely by the law, action equals reaction, the body will exert forces on the fluid. Sometimes these force actions are accompanied by the shedding of vorticity as in the case of a lifting surface of
8#
發(fā)表于 2025-3-22 22:58:36 | 只看該作者
9#
發(fā)表于 2025-3-23 05:10:34 | 只看該作者
Manual of Screeners for Dementialy shaped blades connected to a hub. The number of blades can vary from two upto about six. The hub is mounted on a shaft (figure 3.1) which is rotated by the engine. The blades have to be designed so that at a given rotational velocity, a prescribed thrust is produced which moves the ship with the
10#
發(fā)表于 2025-3-23 07:01:14 | 只看該作者
Frank Grochulla M.D.,Uwe Vieweg M.D., Ph.D.e one seems to be: a propeller is unsteady when no inertial reference frame exists with respect to which the induced flow is time independent. This however is not appropriate because then nearly all conceivable propulsion systems are unsteady with the only exception probably of the sails of a yacht
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