Вісник Астрономічної школи, 2013, том 9, № 1, с. 28–36
УДК 523.98
Роль негативної спіральної турбулентної в'язкості в фрагментації магнітних полів на Сонці
Криводубський В.Н.
Астрономічна обсерваторія Київського національного університету імені Тараса Шевченка
Реферат
Зроблено огляд досліджень проявів ефекту негативної турбулентної в'язкості в метеорологічних, геофізичних і астрофізичних явищах. Підкреслено, що спіральні рухи в ротаційній конвективній турбулентності сприяють виникненню зворотного каскаду перенесення енергії від дрібномасштабних до великомасштабних пульсацій, що і приводить до ефекту негативної турбулентної в'язкості. Проведені розрахунки для двох моделей сонячної конвективної зони (СКЗ) показали, що глибинних шарах існують сприятливі умови для виникнення ефекту спіральної негативної турбулентної в'язкості. Проаналізовано роль зазначеного ефекту в утворенні дискретних магнітних силових трубок поблизу дна СКЗ.
Ключові слова: отрицательная турбулентная вязкость; спиральные движения; конвективная зона; магнитные силовые трубки
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