بررسی مدل‌های مورد استفاده برای شبیه‌سازی آتش‌سوزی و انتشار دود در فضاهای سربسته

نوع مقاله: مقاله علمی ترویجی

نویسندگان

1 دکترای مهندسی مکانیک، دانشگاه صنعتی مالک اشتر، شیراز

2 استادیار دانشکدة مهندسی مکانیک و هوافضا، دانشگاه صنعتی شیراز، شیراز

چکیده

شبیه‌سازی گسترش آتش و انتشار دود در فضاهای بسته از اهمیت ویژه‌ای برخوردار است و به‌وسیلة آن می‌توان نقائص و مشکلات سیستم کنترل آتش را مشخص نمود و حتی پیشنهاداتی برای تغییر وضعیت معماری فضای مورد نظر ارائه داد. به‌طور کلی مدل‌های مورد استفاده برای شبیه‌سازی آتش و انتشار دود را می‌توان به دو دستة مدل‌های ناحیه‌ای و مدل‌های میدانی تقسیم کرد. مدل‌های ناحیه‌ای یک‌بعدی‌اند و ساده‌ترین نوع آن، مدل‌های کامپیوتری می‌باشد. از طرفی، مدل‌های میدانی برای فضاهای دوبعدی یا سه‌بعدی مورد استفاده قرار می‌گیرند و در واقع همان روش‌های شبیه‌سازی عددی هستند که برای حل به کامپیوتر‌های قدرتمند نیاز دارند. در این مقاله ویژگی‌های آتش و دود، خطرات ناشی از آن در فضاهای بسته و برخی پارامترهای مهم برای شبیه‌سازی آتش از جمله نرخ تولید دود و نرخ حرارت آزادشده مورد بررسی قرار گرفته است. سپس مدل‌‌های مختلف مورد استفاده برای شبیه‌سازی آتش و انتشار دود ارائه و مورد مطالعه قرار گرفته است.

کلیدواژه‌ها


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