- Tytuł:
- Calculating the second-order hydrodynamic force on fixed and floating tandem cylinders
- Autorzy:
-
Motallebi, Mohammad
Ghafari, Hamidreza
Ghassemi, Hassan
Shokouhian, Mehdi - Powiązania:
- https://bibliotekanauki.pl/articles/135350.pdf
- Data publikacji:
- 2020
- Wydawca:
- Akademia Morska w Szczecinie. Wydawnictwo AMSz
- Tematy:
-
fixed cylinder
floating cylinder
second order hydrodynamic force
diffracted wave
potential theory - Opis:
- In this paper, the second-order hydrodynamic force on fixed and floating tandem cylinders has been calculated and different parameters have been taken into consideration. An incident wave is diffracted by the fixed cylinder, and as a result low-frequency waves radiate toward the floating cylinder and cause low-frequency second-order hydrodynamic forces to act on the surface of the floating cylinder. The interactions between the fixed and floating cylinders have been investigated by changing the distance between them, as well as the draft and radius of the floating cylinder. By employing perturbation series analysis over the wetted surface, the second-order wave excitation force has been calculated. The maximum force applied on the floating cylinder becomes non-dimensional when considering it with and without the fixed cylinder. The results showed the effect that the existence of the fixed cylinder had on the increase in the second-order forces is quite evident where, for a significant parameter of the floating cylinder, the force in the heave direction was enhanced by up to 1.55 times.
- Źródło:
-
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2020, 62 (134); 108-115
1733-8670
2392-0378 - Pojawia się w:
- Zeszyty Naukowe Akademii Morskiej w Szczecinie
- Dostawca treści:
- Biblioteka Nauki
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