A Design Study of a Free Surface Variable Pressure Water Tunnel PDF Download
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Author: James Albert Tankersley
Publisher:
ISBN:
Category : Tunnels
Languages : en
Pages : 112
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Author: James Albert Tankersley
Publisher:
ISBN:
Category : Tunnels
Languages : en
Pages : 112
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Book Description
Author: John F. Ripken
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
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Book Description
A preliminary hydrodynamic design study was made of a high-speed, free surface, variable pressure water tunnel with a top speed capability of 100 fps in a 3 ft square test section of 20 ft length. The primary objective was to determine the feasibility of modifying the existing NSRDC 36-inch water tunnel to incorporate the new test section. An analysis was carried out of the components of the desired tunnel which led to a proposed tentative configuration that should meet the original specifications. As the design of the critical components exceeds the present state of the art, model studies are strongly recommended. Energy loss estimates based on the preliminary analysis indicate that a pump of about 40 ft design head, 900 cfs discharge, and 4900 delivered HP for maximum head conditions is required. This would require approximately 6400 HP of input electrical energy. These values are considerably in excess of those currently available in the 36-inch tunnel. Increased sizing of the elements in the lower leg of the existing tunnel is also proposed. In consideration of the increased pump, power, and space requirements, it is concluded that the 36-inch tunnel cannot be practically adapted for the new test section and that extensive model testing should be initiated for a new facility. (Author).
Author: Charles D. Christopherson
Publisher:
ISBN:
Category : Water tunnels
Languages : en
Pages : 72
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Author: Eric Stewart
Publisher:
ISBN:
Category :
Languages : en
Pages : 243
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Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 838
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Author:
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 258
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Author: Pauline H. Gurewitz
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 364
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069270
Category : Science
Languages : en
Pages : 75
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Book Description
The Department of the Navy maintains a vigorous science and technology (S&T) research program in those areas that are critically important to ensuring U.S. naval superiority in the maritime environment. A number of these areas depend largely on sustained Navy Department investments for their health, strength, and growth. One such area is naval hydromechanics, that is, the study of the hydrodynamic and hydroacoustic performance of Navy ships, submarines, underwater vehicles, and weapons. A fundamental understanding of naval hydromechanics provides direct benefits to naval warfighting capabilities through improvements in the speed, maneuverability, and stealth of naval platforms and weapons. An Assessment of Naval Hydromechanics Science and Technology is an assessment of S&T research in the area of naval hydromechanics. This report assesses the Navy's research effort in the area of hydromechanics, identifies non-Navy-sponsored research and development efforts that might facilitate progress in the area, and provides recommendations on how the scope of the Navy's research program should be focused to meet future objectives.
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 236
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Author: United States. Congress. House. Committee on Armed Services
Publisher:
ISBN:
Category : Military bases
Languages : en
Pages : 456
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