ضریب اصطکاک جریان مغشوش سیال پایه و نانوسیال از دیدگاه آماری

علوم کاربردی و محاسباتی در مکانیک

مقاله 8، دوره 31، شماره 1 - شماره پیاپی 21، اسفند 1398، صفحه 105-122   

نوع مقاله: مقاله پژوهشی

شناسه دیجیتال (DOI): 10.22067/fum-mech.v31i1.81926

نویسندگان

فرهاد وحیدی نیا؛ قنبرعلی شیخ زاده^*

دانشگاه کاشان

چکیده

در این مقاله، روابط ارائه شده در متون علمی برای ضریب اصطکاک جریان مغشوش سیّال پایه و نانوسیّال به‌صورت آماری بررسی و تحلیل شده است. به‌منظور تحلیل آماری و انتخاب بهترین تابع توزیع احتمال برای پارامتر ضریب اصطکاک، از 48 تابع توزیع احتمالاتی و 3 آمارۀ کولموگروف‑اسمیرنوف، اندرسون‑دارلینگ و مربع کای استفاده شده است. پس از تجزیه‌وتحلیل نتایج، مشخص گردید که بر اساس هر سه آماره، تابع توزیع احتمال ضریب اصطکاک در سیّال پایه و نانوسیّال، تابع توزیع احتمال جانسون اس‌بی‌ است. همچنین مشاهده گردید که تابع توزیع احتمال ضریب اصطکاک سیّال پایه و نانوسیّال نسبت به تابع توزیع نرمال پهن‌تر است. از طرفی دیگر، چولگی تابع توزیع احتمال جانسون اس‌بی‌ به طرف راست است.

کلیدواژه‌ها

ضریب اصطکاک؛ جریان مغشوش؛ تابع توزیع احتمال جانسون اس‌بی‌؛ آماره‌های کولموگروف اسمیرنوف؛ اندرسون دارلینگ و مربع کای

سایر فایل های مرتبط با مقاله

EA8-vahidinia-Nahayi.pdf

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