doi:
UDK: 532.3:551.326.1

WIND DRIFT AND BREAKDOWN OF THE ICE FIELD

Гончаров В. К.
Article language: русский
Citation Link: Гончаров В.К. Ветровой дрейф и разрушение ледового поля // Труды СПбГМТУ. –2022. –№4. – С. 14–26.

Annotation

Paper contents the analytical model of separate ice field drift under action of wind and current, which velocities and directions can vary during time. Model takes into account the mass of an ice, added mass of a sea water and the effects of wind and current on the ice field in form the friction on its upper and underwater surfaces and frontal resistance on its end (forward and backward) surfaces. Results of the ice field wind drift modelling show the drift velocity exceeds considerable known velocity of the compact ice cover wind drift observed in the Arctic and velocity of the wind surface current. Drifting ice field has the certain kinetic energy that should be released when collision with unmovable obstacle and spent on brittle breakdown of part of the ice field. Volume of formed small ice pieces (fragments of ice field) was estimated by comparison of the specific energy of sea ice brittle destruction and the kinetic energy of the drifting ice field. Paper presents the results of estimation of possible volume of the ice pieces formed as result of collision with the obstacle depending on the size of the ice field and the wind velocity. Developed models and the results of computer modelling can be used to estimate the ice pile sizes near the stationary platforms and terminals on the Arctic seas. Keywords: sea ice, drift, wind, current, kinetic energy, breakdown, piling

Bibliography

1. Sayed M., Frederking R., Barker, A. 2000. Numerical simulation of pack ice forces on structures: a Parametric Study. Proceedings of the 10th International Offshore and Polar Engineering Conference (ISOPE). Vol.1, pp. 656-662.
2. Barker A., Timco G., Sayed M. 2001. Three-dimensional numerical simulation of ice pile-up evolution along shorelines. Proceedings Canadian Coastal Conference. pp 167–180.
3. Karulin E.B., Karulina M.M., Blagovidov L.B. Ice model tests of caisson platform in shallow water. Journal of Offshore and Polar Engineering. Vol. 17, No 4, December 2007, pp. 270–275.
4. Marchenko A. 2010. Modelling of ice piling up near offshore structures. Proceedings of the 20th IAHR International Symposium on Ice. 14 p.
5. Doronin Yu.P., Kheisin E.L. 1975. Morskoy liod. (Sea Ice). L.: Gidrometeoizdat. 320 p.
6. Leppäranta M. 2011. The drift of Sea Ice. Springer-Berlin, Heidelberg. 350 p.
7. Herman A. 2011. Molecular-dynamics simulation of clustering process in sea-ice floes. (Physical Review E. 84. 056104. 11 p.
8. Koji H., Toshiya V., Takuya H., Yoshio M., Hiroshi S. 1991. Wind force acting on floating ice floes and their drifting velocity. Journal of Ocean Development. Vol. 7. p 207-212.
9. Voitkunsky Ya. I. 1988. Soprotivlenie vodu dvizgeniu sudov. (Water resistance for ships movement), L.: Sudostroenie. 145 p.
10. Goncharov V.K., Pyatkin V.A.2020. Issledovanie vzaimodeistviya ledovykh polei s nepovizgnoi pregraadoi. (Study of the ice fields interaction with fixed barrier). Marine Intellectual Technologies. № 1б part 3. P. 66-71. DOI 10.37220/MIT.2020.47.1.039
11. Peyton H.R. 1966. Sea ice strength. Report NNR 307-247. Geophysical Institute. University of Alaska. 273 pp.
12. Kheisin D.E., Likhomanov V.A., Kurdiumov V.A. 1975. Opredelenie udelnoy energii razrushenia i kontaktnykh davleniy pri udare tverdogo tela ob liod. (Definition of the specific energy of breaking and contact pressures while the solid body impact on ice). Proccedings of AARI, Vol. 328. P. 210-218.
13. Tsuprik V.G. 2013. Teoreticheskie issledovania udelnoy energii mechanicheskogo razrushenia morskogo lida. (Theoretical investigations of the specific energy of the sea ice breakdown). Bulletin of the Novosibirsk State University. Series: Mathematics, Mechanics, Informatics.Vol. 13. No 2. p. 119-125.
14. Goncharov V.K. 2022. Wind drift and breakdown of the ice field. 26th IAHR International Symposium on Ice (IAHR-22). Montreal, Canada. Paper 79. 11 p.
15. Stewart R.H., 2009. Introduction to Physical Oceanography. Texas A&M University. 358 p.
16. Goncharov V.K. 2010. Vneshnie nagruzki na soorudzhenya na morskom shelfye. Uchebnoye posobye. (External loads on the sea shelf constructions. Text book.). SPbSMTU Publishing House 184 с.
17. Dawson T.H.1986. Proektirovanie sooruzgenii morskogo shelfa. (Offshore Structural Engineering). L.: Sudostroenie. 288 p.