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0415U001893,
к.т.н.
03-04-2015
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Method for calculating of bridges with group openings based on the theory of two-dimensional flows
Kozarchuk Igor Anatoliyovych,
popup.head Slavinska Olena Sergiyivna
popup.opponent Угненко Євгенія Борисівна
popup.opponent Шинкарук Любомир Антонович
У дисертації розроблено й обґрунтовано математичну двовимірну модель і метод розрахунку мостових переходів із груповими отворами, які враховують вплив поперечної циркуляції на кінематичні характеристики потоку. В якості замикаючої моделі турбулентності використано алгебраїчні співвідношення для рейнольдсових напружень спільно з двопараметричною k-? моделлю для осереднених за глибиною величин, яку модифіковано з урахуванням впливу кривизни потоку. Розроблено метод числової реалізації запропонованої математичної моделі, який оснований на методі типу предиктор-коректор із використанням схеми Мак-Кормака, модифікованої розщепленням рівнянь моделі за просторовими координатами і часом. Для підтвердження адекватності розробленої моделі та методу її реалізації було використане експериментальне дослідження вузла злиття відкритих потоків. Практичне впровадження виконувалось на реальному об'єкті дорожньо-транспортного комплексу України.
2015-04-03
2020-04-03
Updated: 2025-12-07
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