
Ð”Ð°Ð½Ð½Ð°Ñ Ñ€Ð°Ð±Ð¾Ñ‚Ð° поÑвÑщена моделированию полей ÑкороÑти и температуры в Ñлементе хранилища ОЯТ при запроектной аварии, ÑвÑзанной Ñ Ð²Ð½ÐµÐ·Ð°Ð¿Ð½Ñ‹Ð¼ полным оÑушением баÑÑейна выдержки ОЯТ. Задачи, которые решалиÑÑŒ в ходе иÑÑледованиÑ: 1. Разработка и отладка в пакете прикладных программ ANSYS Fluent трехмерной раÑчетной модели Ð´Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ñ‚ÐµÐ¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑоÑтоÑÐ½Ð¸Ñ Ð¾Ð´Ð½Ð¾Ð³Ð¾ пенала Ñ ÐžÐ¢Ð’Ð¡, Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ теплообмена конвекцией внутри пенала и неравномерного раÑÐ¿Ñ€ÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¾Ñтаточного Ñ‚ÐµÐ¿Ð»Ð¾Ð²Ñ‹Ð´ÐµÐ»ÐµÐ½Ð¸Ñ ÐžÐ¯Ð¢ по выÑоте. 2. ИÑÑледование Ñтационарного теплового ÑоÑтоÑÐ½Ð¸Ñ ÐžÐ¢Ð¡Ð’ в обезвоженном пенале Ð´Ð»Ñ Ñ€Ð°Ð·Ð»Ð¸Ñ‡Ð½Ñ‹Ñ… значений оÑтаточного Ñ‚ÐµÐ¿Ð»Ð¾Ð²Ñ‹Ð´ÐµÐ»ÐµÐ½Ð¸Ñ ÐžÐ¯Ð¢ и различных граничных уÑловий. 3. Ðнализ полученных результатов и их Ñравнение Ñ Ð´Ð°Ð½Ð½Ñ‹Ð¼Ð¸ из работ, выполненных другими авторами. Ð’ работе в пакете прикладных программ ANSYS Fluent верÑии 23.R2 поÑтроена Ñ‚Ñ€ÐµÑ…Ð¼ÐµÑ€Ð½Ð°Ñ Ñ‡Ð¸ÑÐ»ÐµÐ½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»ÑŒ пенала Ñ ÐžÐ¢Ð’Ð¡ реактора БÐ-800. РаÑчеты Ñтационарных полей температур выполнены путем чиÑленного Ñ€ÐµÑˆÐµÐ½Ð¸Ñ ÑƒÑ€Ð°Ð²Ð½ÐµÐ½Ð¸Ð¹ ÑÐ¾Ñ…Ñ€Ð°Ð½ÐµÐ½Ð¸Ñ Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ еÑтеÑтвенной конвекции и теплового Ð¸Ð·Ð»ÑƒÑ‡ÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ñ€Ð°Ð·Ð»Ð¸Ñ‡Ð½Ñ‹Ñ… значений оÑтаточного Ñ‚ÐµÐ¿Ð»Ð¾Ð²Ñ‹Ð´ÐµÐ»ÐµÐ½Ð¸Ñ ÐžÐ¯Ð¢. Сделан вывод о влиÑнии еÑтеÑтвенной конвекции воздуха и лучиÑтого тепло-обмена на тепловое ÑоÑтоÑние ОЯТ в уÑловиÑÑ… запроектной аварии.
This work is devoted to modeling the velocity and temperature fields in the SNF storage element in case of an out-of-design accident associated with sudden complete drainage of the SNF holding basin. Tasks that were solved during the research: 1. Development and debugging of a three-dimensional computational model in the ANSYS Fluent software package for studying the thermal state of one case with SNFA, taking into account heat exchange by convection inside the pencil case and the uneven distribution of residual SNF heat release in height. 2. Investigation of the stationary thermal state of SNFA in a dehydrated case for various values of residual SNF heat release and various boundary conditions. 3. Analysis of the results obtained and their comparison with data from works performed by other authors. In the work, a three-dimensional numerical model of a case from the BN-800 reactor was built in the ANSYS Fluent software package version 23.R2. Calculations of stationary temperature fields are performed by numerically solving conservation equations taking into account natural convection and thermal radiation for various values of residual SNF heat release. The conclusion is made about the influence of natural convection and radiant heat transfer on the thermal state of SNF.
запÑоекÑÐ½Ð°Ñ Ð°Ð²Ð°ÑиÑ, numerical modeling, баÑÑейн вÑдеÑжки ÐЯТ, out-of-project accident, оÑÑабоÑавÑее ÑдеÑное Ñопливо, spent fuel storage, ÑиÑленное моделиÑование, spent nuclear fuel, ÑепломаÑÑообмен, heat and mass transfer
запÑоекÑÐ½Ð°Ñ Ð°Ð²Ð°ÑиÑ, numerical modeling, баÑÑейн вÑдеÑжки ÐЯТ, out-of-project accident, оÑÑабоÑавÑее ÑдеÑное Ñопливо, spent fuel storage, ÑиÑленное моделиÑование, spent nuclear fuel, ÑепломаÑÑообмен, heat and mass transfer
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