پایان نامه انتقال حرارت جابجایی اجباری نانو سیال غیر نیوتنی تحت جریان مغشوش در میکرو لوله

فهرست:

فهرست مطالب

فهرست جدول­ها

فهرست شکل­ها

فهرست علائم

فصل اول- مقدمه

1-1 میکروکانال­ها

1-2 تغییر خاصیت رئولوژیکی سیال

1-3 مواد افزودنی به مایعات

فصل دوم-میکروکانال­ها

2-1 چکیده

2-2 تاریخچه میکروکانال­­ها

2-3 معرفی میکروکانال­ها

2-4 طبقه‌بندی میکروکانال­ها و مینی­کانال­ها

2-5 مزایا و چالش­های میکروکانال­ها

2-6 روش‌های ساخت میکروکانال­ها

2-6-1 فناوری متداول

2-6-2 تغییر شکل میکرو

2-6-3 اره کردن میکرو (برش‌کاری میکرو)

2-6-4 تکنولوژی مدرن

2-6-5 MEMS (سیستم میکرو الکترومکانیک)

2-6-6 ماشین‌کاری میکرو لیزر

2-7 جریان تک فاز در میکروکانال­ها

2-8 روابط افت فشار

2-9 روابط انتقال حرارت

2-9-1 جریان مغشوش

2-10 کاربردهای میکروکانال­ها

فصل سوم- سیالات غیر نیوتنی

3-1 طبقه‌بندی سیالات غیر نیوتنی

3-1-1 سیالات غیر نیوتنی مستقل از زمان

3-1-2 مدل قاعده توانی

3-1-3 مدل کراس

3-1-4 مدل کارئو

3-1-5 مدل الیس

3-1-6 سیالات غیر نیوتنی تابع زمان

3-1-7 سیالات ویسکوالاستیک

فصل چهارم- نانوسیالات

4-1 مفهوم نانوسیالات

4-2 مزایای نهان نانوسیال

4-3 تهیه نانوسیال

4-4 خواص ترموفیزیکی نانوسیالات

4-4-1 چگالی

4-4-2 گرمای ویژه

4-4-3 لزجت

4-4-4 ضریب هدایت حرارتی

4-5 فناوری نانو

4-6 تولید نانوذرات

4-6-1 فرآیندهای حالت بخار

4-6-2 فرآیند حالت مایع و حالت جامد

4-6-3 تولید نانوذرات با استفاده از روش سیال فوق بحرانی

4-7 نانولوله­ها

4-8 انتقال حرارت جابه­جایی در نانوسیالات

4-8-1 جابه­جایی اجباری در نانوسیالات

4-8-2 مدل‌های ریاضی تعیین ضریب انتقال حرارت جابه­جایی نانوسیالات

4-8-3 انتقال حرارت جابه­جایی طبیعی

فصل پنجم- اغتشاش

5-1 مقدمه

5-2 ویژگی­های جریان اغتشاشی سیالات

5-3 مدل‌های اغتشاشی

5-3-1 مدل k-e

5-3-2 استفاده از تابع جریان در مدل k-e برای اعداد رینولدز بالا

5-3-3 مدل k-e در اعداد رینولدز پایین

5-3-4 مدل  RNG

5-3-5 مدل k-w

5-3-6 مدل تنش رینولدزی (RSM)

فصل ششم- مطالعات آزمایشگاهی، عددی و تئوریک

6-1 مقدمه

6-2 مطالعات آزمایشگاهی

6-3 مطالعات تئوریک

6-4 مطالعات عددی

فصل هفتم- بیان مسئله

7-1 مقدمه

7-2 تشریح مسئله

7-3 تعیین خواص ترموفیزیکی نانوسیال

7-4 استقلال شبکه و تعیین شرایط مرزی

فصل هشتم- نتایج

8-1 محاسبه خواص ترموفیزیکی نانوسیال

8-2 محاسبه ضریب انتقال حرارت جابه­جایی و عدد ناسلت

8-3 اعتبار سنجی

8-4 محاسبه ضریب انتقال حرارت جابه­جایی  و عدد ناسلت سیال غیرنیوتنی پایه

8-5 تأثیر غلظت نانوذرات بر ضریب انتقال حرارت جابه­جایی و عدد ناسلت

8-6 تأثیر اندازه نانوذرات بر ضریب انتقال حرارت جابه­جایی

8-7 تأثیر عدد رینولدز بر ضریب انتقال حرارت جابه­جایی نانوسیال و عدد ناسلت

فصل نهم- جمع‌بندی و پیشنهاد‌ها

9-1 جمع‌بندی

9-2 پیشنهاد‌ها

مراجع

Abstract

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