Влияние неравномерного источника/стока тепла и Джоулева нагрева на конвективное движение микрополярной жидкости в химически излучающей МГД-среде поперек растянутого листа

Проведенное исследование направлено на изучение динамики воздействия излучения, источника неоднородной интенсивности и проницаемой среды на магнитную гидродинамику смешанной конвективной микрополярной жидкости на протяженном слое плоской пластины, подверженной джоулевому нагреву. Исходная задача сведена к решению обыкновенных дифференциальных уравнений. Для построения численного решения обыкновенных дифференциальных уравнений использованы методы Рунге–Кутта–Фельберга четвертого и пятого порядков и метод стрельбы. В качестве программной среды и для визуализации численных результатов моделирования использован пакет MATLAB. Для соответствующих профилей потоков найдены безразмерные параметры. Исследовано поведение поверхностного натяжения. Число Нуссельта и число Шервуда рассчитаны с учетом скорости потока, температуры и концентрации. Динамика влияния различных параметров потока представлена в графическом виде. Моделирование проведено с учетом магнитогидродинамики потока, пористой структуры конвективной микрополярной жидкости на протяженном слое плоской пластины, влияния вязкой диссипации, нагрева Джоуля, а также нелинейного теплового излучения. Установлено, что для больших значений микрополярного параметра температура снижается, а скорости потока и углового импульса увеличиваются. С использованием параметров теплового излучения с учетом больших значений Эккерта и неравномерного источника тепла распределение температуры и теплового пограничного слоя улучшается. Более высокая теплопроводность пропорциональна толщине теплового пограничного слоя. Профиль концентрации ухудшается с ростом числа Шмидта. Проведенное численное исследование магнитной гидродинамики смешанной конвективной микрополярной жидкости на протяженном слое плоской пластины касается важных прикладных задач охлаждения в системах, таких как анализ трения в масляных трубопроводах, исследованиях сердечно-сосудистой системы, а также может использоваться для построения систем мониторинга потоков.

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