مطالعه عددی و اندازه‌گیری تجربی ضریب نفوذپذیری در محیط متخلخل فیبری با احتساب جزئیات هندسی به منظور بررسی تأثیر پارامترهای هندسی

نوع مقاله : مقاله علمی پژوهشی

نویسندگان

1 مهندسی مکانیک ، دانشگاه علم و صنعت ایران، تهران

2 مهندسی مکانیک، دانشگاه علم و صنعت ایران، تهران

چکیده

جزئیات هندسی تخلخل، بر پدیده­های انتقال تأثیرگذار می‌باشد. اما شبیه­سازی کل مسأله با احتساب این جزئیات امکان­پذیر نیست. بنابراین، می‌توان بخشی از هندسه را به منظور مطالعه پارامترهای عملکردی، با در نظر گرفتن جزئیات شبیه­سازی نمود. در مطالعه­ی حاضر، با تصویربرداری میکروسکوپی، پارامترهای ساختاری تعیین و الگوریتم تولید آرایش فیبرها، ارائه شد. با حل عددی معادلات ناویر-استوکس و فرض پیوستگی جریان، تأثیر پارامترهای هندسی بررسی گردید. برای اعتبارسنجی، نفوذپذیری محیط اندازه‌گیری شد. با افزایش کسر حجمی جامد و زاویه­ی بین راستای جریان و محور فیبرها از میزان نفوذپذیری کاسته شد. همچنین با افزایش قطر فیبرها نفوذپذیری محیط افزایش یافت.

کلیدواژه‌ها

موضوعات


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