This paper deals with the resistance- and thrust-measurements on a series of nine geometricall similar Victory ship models, ranging in scale from 160 to 18, and on a Victory model boat of scale 6.

    The first part of the paper gives a description of the ship, the propeller, the models, the test apparatus, the test performance, the instrument calibration and the necessary corrections.

    The measured resistance and thrust values of the model boat are correlated with the results of the tests with the models using three methods, i.e. the Schoenherr, the Hughes, and the Lap-Troost extrapolators.

    The results of experiments for the determination of the wall-interference are given. These experiments are on the principle of the “image method”.

    An attempt is made to analyse the thrust deduction factors as a function of the Reynolds number.

    Conclusions and a programme for the continuation of the tests are presented at the end of the paper.


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    Title :

    Scale effect experiments on victory ships and models1


    Subtitle :

    Part I. Analysis of the resistance- and thrust measurements on a model family and on the model boat D.C. Endert Jr.


    Contributors:

    Published in:

    Publication date :

    1956-02-01


    Size :

    32 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Scale effect experiments on victory ships and models

    Lap, A.J.W. / van Lammeren, W.P.A. | Engineering Index Backfile | 1962


    Scale effect experiments on victory ships and models

    van Lammeren, W.P.A. / van Manen, J.D. / Lap, A.J.W. | Engineering Index Backfile | 1954


    Scale effect experiments on victory ships and models

    Van Lammeren, W.P.A. / van Manen, J.D. / Lap, A.J.W. | Engineering Index Backfile | 1956


    Scale-effect experiments on Victory ships and models1

    van Manen, J.D. / Lap, A.J.W. | IOS Press | 1958


    Scale effect experiments on Victory ships and models -- 4

    Lap, A.J.W. / van Manen, J.D. | Engineering Index Backfile | 1962