شبیه‌سازی عددی و مطالعه پارامتری شریان اتساع‌پذیر آئورت

نوع مقاله: مقاله علمی پژوهشی

نویسندگان

1 دانشگاه صنعتی شیراز*مهندسی مکانیک

2 دانشگاه صنعتی شیراز

چکیده

در این تحقیق با در نظر گرفتن یک مدل واقعی به شبیه‌سازی عددی قوس آئورت با استفاده از نرم‌افزار ANSYS-CFX پرداخته شده است. نتایج نشان می‌دهد استفاده از مدل سه لایه منجر به ایجاد پرش در تنش در مرز لایه‌ها شده و نسبت به مدل یک لایه، ماکزیمم تنش‌ها مقادیر بالاتری خواهند داشت. برای شبیه سازی رفتار واقعی شریان از مدل هایپر الاستیک استفاده شده که در مقایسه با مدل الاستیک، منجر به ایجاد تنش‌های پایین‌تری در دیواره شریان شده است. با بررسی تأثیر پارامترهای مختلف بر روی توزیع تنش در جداره، نواحی آسیب‌پذیر مشخص گردیده است.

کلیدواژه‌ها

موضوعات


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