Experimental Performance of TMB Supercavitating Propellers PDF Download
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Author: Richard Hecker
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
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Book Description
Author: Richard Hecker
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
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Book Description
Author: Richard Hecker
Publisher:
ISBN:
Category : Propellers, Supercavitating
Languages : en
Pages : 318
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Book Description
In order to evaluate the TMB design method for supercavitating (SC) propellers, and the validity of the theoretically calculated supercavitating design charts, several supercavitating propellers were built and tested in the TMB 24-inch water tunnel. The test results are given. Comparisons between the predicted performance and the test results showed that the predictions are adequate enough to warrant the use of the TMB supercavitating series charts. Parts of the theory used in the design method are inadequate, however, and improvements in the theory can be expected to lead to more accurate predictions. Calculations were performed using nonlinear lift coefficients and cavitating corrections, but only a small improvement was obtained. Finally, it is concluded that a rational lifting surface theory is needed. (Author).
Author: Richard Hecker
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Book Description
Six TMB 3-bladed supercavitating propellers were tested for powering performance in the 24-inch variable pressure water tunnel at several cavitation indices over a range of speed coefficients. The thrust, torque, and rpm were measured with the 150-hp dynamometer. The water velocity during the tests was measured with a pitot tube mounted in the plane of the propeller blade centerline at a radial distance of ten in. from the shaft centerline. The pitot tube openings are connected to a mercury monometer allowing the average water speed to be measured within + or 0.1 fps. The tunnel pressure is also measured by means of mercury monometers. A telescopic sight is provided for reading the mercury level. In this way the tunnel pressure can be maintained to within + or - 0.01 psi. (Author).
Author: David W. Taylor Naval Ship Research and Development Center
Publisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 362
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Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 260
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Book Description
Author: David W. Taylor Naval Ship Research and Development Center
Publisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 42
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Author:
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 260
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Book Description
Author: Bennett L. Silverstein
Publisher:
ISBN:
Category : Hydroelasticity
Languages : en
Pages : 1100
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Book Description
Author: David W. Taylor Model Basin
Publisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 330
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Book Description
Author: B. Lakshminarayana
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 910
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