|
Section
|
Mechanics
|
|
Title
|
Experimental determination of the added masses by method of towing
|
|
Author(-s)
|
Klenov A.I.a,
Vetchanin E.V.ab,
Kilin A.A.ab
|
|
Affiliations
|
Izhevsk State Technical Universitya,
Udmurt State Universityb
|
|
Abstract
|
This paper is concerned with the experimental determination of the added masses of bodies completely or partially immersed in a fluid. The paper presents an experimental setup, a technique of the experiment and an underlying mathematical model. The method of determining the added masses is based on the towing of the body with a given propelling force. It is known (from theory) that the concept of an added mass arises under the assumption concerning the potentiality of flow over the body. In this context, the authors have performed PIV visualization of flows generated by the towed body, and defined a part of the trajectory for which the flow can be considered as potential. For verification of the technique, a number of experiments have been performed to determine the added masses of a spheroid. The measurement results are in agreement with the known reference data. The added masses of a screwless freeboard robot have been defined using the developed technique.
|
|
Keywords
|
added mass, movement on a free surface, hydrodynamic resistance, method of towing
|
|
UDC
|
532.5.011, 532.582
|
|
MSC
|
76-05
|
|
DOI
|
10.20537/vm150413
|
|
Received
|
7 November 2015
|
|
Language
|
Russian
|
|
Citation
|
Klenov A.I., Vetchanin E.V., Kilin A.A. Experimental determination of the added masses by method of towing, Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki, 2015, vol. 25, issue 4, pp. 568-582.
|
|
References
|
- Pavlyukov V.P., Gulin V.A. Experimental setup for determining the added masses, USSR Certificate of Authorship no. 658034, 1979 (in Russian).
- Vorob'ev P.S. Accounting of the influence of the fluid free surface on the value of added mass during acceleration and deceleration of a ship, Tr. Novosib. Inst. Inzh. Vodn. Transp., Novosibirsk, 1970, no. 45, pp. 126-136 (in Russian).
- Ditman A.A., Okunev S.N. Experimental precision of realization of magnetodynamic analogy, Nekot. Vopr. Prikl. Mat., Kiev, 1969, no. 4, pp. 21-25 (in Russian).
- Kilin A.A., Vetchanin E.V. The contol of the motion through an ideal fluid of a rigid body by means of two moving masses, Nelin. Dinam., 2015, vol. 11, no. 4, pp. 633-645 (in Russian).
- Korotkin A.I. Prisoedinennye massy sudostroitel'nykh konstruktsii: Spravochnik (Added masses of the ship structures. Handbook), Saint Petersburg: Mor West, 2007, 448 p.
- Vasil'ev V.I., Nitskii A.Yu. Ustroistvo dlya opredeleniya prisoedinennykh mass (The device for determining added masses). Patent RF, no. 143490, 2006.
- Borisov A.V., Kilin A.A. Bezvintovoi nadvodnyi robot (Screwless surface robot). Patent RF, no. 153711, 2015.
- Prandtl L. Gidroaeromekhanika (Fluid mechanics), Izhevsk: Regular and Chaotic Dynamics, 2000, 576 p.
- Ryazanov G.A. Elektricheskoe modelirovanie s primeneniem vikhrevykh polei (Electrical simulation using eddy fields), Moscow: Nauka, 1969, 254 p.
- Sabaneev V.S. The influence of depth of immersion on the value of the spheroid's added mass, Uch. Zap. Leningr. Gos. Univ., Ser. Mat. Nauk, 1960, vol. 280, no. 35, pp. 242-253 (in Russian).
- Khaskind M.D., Riman I.S. The method of determining the characteristics of a ship pitching, Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk, 1946, no. 10, pp. 1379-1384 (in Russian).
|
|
Full text
|
|
+7 (3412) 91 60 92
Russian