AN ARCTIC ICE MODEL BASIN-DESIGN, CONSTRUCTION, AND OPERATING EXPERIENCE

The discovery of oil and other natural resources in the arctic regions has stimulated interest in development of efficient bulk transportation systems and of efficient offshore structures for exploiting these discoveries. Research programs involved in these developments must logically include model experiments since analytical techniques alone are inadequate to characterize the rather complicated interaction between ships, structures and ice. Such model experiments require the use of a specialized test facility. This paper documents the demand for a test facility in which the interaction between hydraulic structures and ice may be modeled. The various types of experiments which the authors feel are relevant to the increasing interest in cold regions technology are described in general terms. The authors describe a preliminary study of the feasibility of constructing an ice model basin using liquid nitrogen refrigerating systems. The feasibility study involved the construction of a small model of the model basin. Ice sheets were formed in this small basin over a period of several months. The fact that ice sheets suitable for modeling sea ice could be formed using a liquid nitrogen system was established. Further, the fact that this technique provided a very economical alternative to fixed refrigeration system was also established. Based upon these findings the authors embarked upon the construction of the ARCTEC ICE MODEL BASIN. The paper describes the design of this facility including the refrigeration system, choice of major dimensions, design of the towing system and model suspension system. Operating experience in the ARCTEC ICE MODEL BASIN is related. Initial shakedown experiments with the refrigeration system are described. Ice resistance experiments involving a United States Coast Guard Wind Class icebreaker model are discussed. Correlation between data obtained in those tests and full scale data as well as with previous model test data is demonstrated. Preliminary experiments with an arctic drilling platform are described. The capabilities of the model basin are summarized and suggested areas of future research are outlined.

  • Supplemental Notes:
    • Abstract of paper delivered at the First International Conference on "Port and Ocean Engineering under Arctic Conditions" held at Trondheim, Norway, August 23-30, 1971
  • Corporate Authors:

    POAC Conference

    ,    
  • Authors:
    • Edwards Jr, R Y
    • Lewis, J W
    • Benze, D L
  • Publication Date: 1971-8-23

Subject/Index Terms

Filing Info

  • Accession Number: 00025691
  • Record Type: Publication
  • Source Agency: Arctic Institute of North America
  • Files: TRIS
  • Created Date: Mar 28 1972 12:00AM