نوع مقاله : علمی- ترویجی

نویسندگان

1 استادیار ، دانشکده مهندسی مکانیک- هوافضا، دانشگاه صنعتی شاهرود، شاهرود ، ایران

2 دانشجوی کارشناسی ارشد، دانشکده مهندسی مکانیک- هوافضا، دانشگاه صنعتی شاهرود،شاهرود، ایران

3 دانشجوی کارشناسی ارشد، دانشکده مهندسی مکانیک -هوافضا، دانشگاه صنعتی شاهرود ، شاهرود، ایران

چکیده

در این مقاله، از روش دینامیک ذرات اتلافی برای شبیه­‌سازی ریز­پمپ الکترواسموتیک در نقش قلب یک سیستم پیشران فضایی- شیمیایی استفاده می‌شود. در این شبیه­‌سازی، بر اساس قاعده جریان الکترواسموتیک، سیال توسط ریز­پمپ رسانش و پارامتر­های متأثر، مانند ابعاد کانال، ولتاژ اعمال‌­شده و اثر جنس سطح یا زتاپتانسیل بررسی و تحلیل شده است. چگونگی توسعه روش شبیه­‌سازی به منظور اعمال نیروی خارجی (نیروی الکترواسموتیک) و همچنین، چگونگی توسعه روش به کانال با ابعاد یا شرایط متفاوت ارائه شده است. نتایج به دست­‌آمده بررسی پروفیل سرعت در کانال به ازای پارامتر‌های متفاوت متأثر را شامل می­‌شود. این نتایج با حل تحلیلی مقایسه و اعتبارسنجی شده است. در این بررسی نشان داده شده که روش الکترواسموتیک روشی ایده­آل برای انتقال سیال به عنوان ریز­پمپ در شرایط مختلف و همچنین، کار­بردی در شاخص ریز، مانند ریز‌ماهواره، است.

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