Рівняння дифузії в шаруватих структурах з урахуванням неідеальних умов контакту
In the paper it is obtained the diffusion equation, in which nonhomogeneities of the body structureare taken into account into the coefficients and its operator displays the conditions of nonidealmass contact on interphases of the phases. Herewith the value of coefficient of concentratingdependence...
Збережено в:
| Дата: | 2019 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | Українська |
| Опубліковано: |
Інститут прикладних проблем механіки і математики ім. Я. С. Підстригача НАН України
2019
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| Теми: | |
| Онлайн доступ: | https://www.fmmit.lviv.ua/index.php/fmmit/article/view/85 |
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| Назва журналу: | Physico-mathematical modeling and informational technologies |
Репозитарії
Physico-mathematical modeling and informational technologies| Резюме: | In the paper it is obtained the diffusion equation, in which nonhomogeneities of the body structureare taken into account into the coefficients and its operator displays the conditions of nonidealmass contact on interphases of the phases. Herewith the value of coefficient of concentratingdependence of chemical potential determines the magnitude of jump discontinuity of the concentrationfunction. The obtained equation is considered as a generalization of the second Fick low fora multiphase body under nonideal contact conditions. We have shown that under the assumptionof linear changes of the physical characteristics of the body material this parameter has jumpdiscontinuities of the first kind on interphases of the phases. |
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