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یوسف زاده, شهروز, دوستدار, محمد مهدی, سرلک, رضا. (1401). بررسی اثر میدان مغناطیسی مورب بر جابجایی آزاد نانوسیال در یک محفظه مربعی با دو چشمه حرارتی متغیر. پدافند الکترونیکی و سایبری, 11(1), 173-197.
شهروز یوسف زاده; محمد مهدی دوستدار; رضا سرلک. "بررسی اثر میدان مغناطیسی مورب بر جابجایی آزاد نانوسیال در یک محفظه مربعی با دو چشمه حرارتی متغیر". پدافند الکترونیکی و سایبری, 11, 1, 1401, 173-197.
یوسف زاده, شهروز, دوستدار, محمد مهدی, سرلک, رضا. (1401). 'بررسی اثر میدان مغناطیسی مورب بر جابجایی آزاد نانوسیال در یک محفظه مربعی با دو چشمه حرارتی متغیر', پدافند الکترونیکی و سایبری, 11(1), pp. 173-197.
یوسف زاده, شهروز, دوستدار, محمد مهدی, سرلک, رضا. بررسی اثر میدان مغناطیسی مورب بر جابجایی آزاد نانوسیال در یک محفظه مربعی با دو چشمه حرارتی متغیر. پدافند الکترونیکی و سایبری, 1401; 11(1): 173-197.

بررسی اثر میدان مغناطیسی مورب بر جابجایی آزاد نانوسیال در یک محفظه مربعی با دو چشمه حرارتی متغیر

مکانیک سیالات و آیرودینامیک
دوره 11، شماره 1 - شماره پیاپی 29، شهریور 1401، صفحه 173-197    اصل مقاله (2.94 M)
نوع مقاله: مقاله پژوهشی
نویسندگان
شهروز یوسف زاده* 1؛ محمد مهدی دوستدار2؛ رضا سرلک3
1استادیار، گروه مهندسی مکانیک، واحد الیگودرز، دانشگاه آزاد اسلامی، الیگودرز، ایران
2استاد ، دانشکده فنی و مهندسی دانشگاه جامع امام حسین (ع)، تهران، ایران
3کارشناسی ارشد، گروه مهندسی مکانیک، واحد الیگودرز، دانشگاه آزاد اسلامی، الیگودرز، ایران
تاریخ دریافت: 09 اسفند 1400،  تاریخ بازنگری: 31 تیر 1401،  تاریخ پذیرش: 13 شهریور 1401 
چکیده
در این پژوهش انتقال حرارت جابجایی آزاد برای محفظه مربعی شکل حاوی دو نانوسیال آب-آلومینا و آب-مس که تحت تأثیر میدان مغناطیسی مورب قرار دارد به روش عددی شبیه­سازی شده و تأثیر پارامترهایی مانند عدد رایلی ( )، عـــدد هارتمن ( )، زاویه میدان مغناطیسی ( )، کسر حجــمی نانــوذرات ( )، نوع منبع حرارتی (خطی یا سینوسی)، طول منبع حرارتی ( ) و پارامتر غیریکنواختی چشمه ( )، بر روی میدان‌های جریان و دما مورد مطالعه قرار گرفته‌ است. نتایج به‌دست‌آمده نشان می‌دهند که با افزایش عدد رایلی و عدد هارتمن، میزان انتقال حرارت به ترتیب افزایش و کاهش می‌یابد. همچنین عملکرد حرارتی محفظه با افزایش زاویه میدان مغناطیسی (از 0 تا 90 درجه) بهبود می­یابد و با افزودن نانوذرات جامد به سیال پایه افزایش نسبی انتقال حرارت در محفظه مشاهده می­شود. در اعداد رایلی بالا و پایین، بیشینه انتقال حرارت مربوط به چشمه دما ثابت می‌باشد و پس از آن برای اعداد رایلی بالا چشمه سینوسی با  و برای اعداد رایلی پایین، که انتقال حرارت هدایت بر محفظه حاکم است، چشمه خطی با  دارای بیشترین عدد ناسلت متوسط می‌باشند. با بررسی طول منابع حرارتی می­توان دریافت که با افزایش طول چشمه­ها، میزان انتقال حرارت افزایش می‌یابد.
کلیدواژه‌ها
انتقال حرارت؛ نانوسیال؛ میدان مغناطیسی؛ محفظه مربعی؛ چشمه حرارتی
مراجع
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آمار
تعداد مشاهده مقاله: 53
تعداد دریافت فایل اصل مقاله: 60