شبیه سازی عددی انتقال حرارت درون یک محفظه مربعی با گرمکن موضعی با استفاده از روش شبکه بولتزمن

نوع مقاله : مقاله علمی پژوهشی

نویسندگان

1 استادیار دانشکده فنی مهندسی گلپایگان

2 دانشکده فنی مهندسی گلپایگان

چکیده

در این مقاله، انتقال حرارت جابجایی طبیعی دو بعدی در محفظه مربعی همراه با دو گرمکن موضعی در دیواره پایین که تحت شار حرارتی نوسانی قرار دارد، با استفاده از روش شبکه بولتزمن مورد بررسی قرار گرفته است. دیواره‌ بالایی در محفظه در دمای ثابت سرد بوده و دیواره‌های جانبی و اطراف گرمکن‌ها نیز عایق هستند. اثر تغییرات مکان گرمکن‌ها، دامنه و طول موج نوسان شار حرارتی بر روی دمای ماکزیمم گرمکن‌ها و جریان درون محفظه بررسی شده است. نتایج نشان می‌دهد که با نزدیک شدن گرمکن‌ها به دیواره‌های جانبی، دمای ماکزیمم گرمکن‌ها اختلاف کمتری داشته و پایدارتر خواهد بود.

کلیدواژه‌ها

موضوعات


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