دست انسان به دلیل ساختار پیچیده، تفاوت در ترکیب بافتی بخشهای مختلف مانند انگشتان، و نقش حیاتی در تنظیم دما و خونرسانی، ویژگیهای منحصربهفردی در انتقال حرارت دارد. مدلهای مرسوم تنظیم دمای بدن عمدتاً ترمودینامیکی و صفربعدی بوده اند و از توصیف دقیق توزیع مکانی دما، به ویژه در اندام هایی مانند دست، ناتوان بوده اند؛ در نتیجه، معمولاً بین دمای محاسبه شده و مقدار واقعی پوست اختلاف زیادی مشاهده می شود. در این پژوهش، یک مدل سه بعدی دقیق و واقعی از دست انسان با بهره گیری از تصاویر پزشکی و اطلاعات ساختاری بافت های مختلف توسعه داده شده است. جریان هوا در اطراف دست به صورت ناپایا، آشفته و تراکم ناپذیر در نظر گرفته شده و مدل سازی با استفاده از معادلات ناویر–استوکس و روش میانگین گیری رینولدز انجام شده است. نتایج حاصل از مدل، حداکثر میانگین خطای مطلق 8/3 درصد با داده های تجربی دارد که نشان دهنده دقت مطلوب آن است. در شرایط محیطی با دمای 10 درجه سلسیوس و سرعت جریان 4/0 متر بر ثانیه، دمای پوست دست به صورت غیر یکنواخت توزیع شده و دمای کمینه، متوسط و بیشینه به ترتیب برابر با 69/1، 64/10 و 21/20 درجه سلسیوس می باشد. کمترین دما در انگشت کوچک ثبت شده که مناسب ترین ناحیه برای بررسی شرایط بحرانی تنش سرمایی است.
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رئیسی,محمد , حسن زاده,حسن , ذوالفقاری,سیدعلیرضا و امیدوار,امیر . (1404). پیکربندی یک مدل زیست-گرمایی دست انسان با اتکا به هندسه واقعی مبتنی بر تصاویر پزشکی. مجله مهندسی مکانیک, 34(4), 37-52. doi: 10.30506/mmep.2025.2057941.2235
MLA
رئیسی,محمد , , حسن زاده,حسن , , ذوالفقاری,سیدعلیرضا , و امیدوار,امیر . "پیکربندی یک مدل زیست-گرمایی دست انسان با اتکا به هندسه واقعی مبتنی بر تصاویر پزشکی", مجله مهندسی مکانیک, 34, 4, 1404, 37-52. doi: 10.30506/mmep.2025.2057941.2235
HARVARD
رئیسی محمد, حسن زاده حسن, ذوالفقاری سیدعلیرضا, امیدوار امیر. (1404). 'پیکربندی یک مدل زیست-گرمایی دست انسان با اتکا به هندسه واقعی مبتنی بر تصاویر پزشکی', مجله مهندسی مکانیک, 34(4), pp. 37-52. doi: 10.30506/mmep.2025.2057941.2235
CHICAGO
محمد رئیسی, حسن حسن زاده, سیدعلیرضا ذوالفقاری و امیر امیدوار, "پیکربندی یک مدل زیست-گرمایی دست انسان با اتکا به هندسه واقعی مبتنی بر تصاویر پزشکی," مجله مهندسی مکانیک, 34 4 (1404): 37-52, doi: 10.30506/mmep.2025.2057941.2235
VANCOUVER
رئیسی محمد, حسن زاده حسن, ذوالفقاری سیدعلیرضا, امیدوار امیر. پیکربندی یک مدل زیست-گرمایی دست انسان با اتکا به هندسه واقعی مبتنی بر تصاویر پزشکی. MMEP, 1404; 34(4): 37-52. doi: 10.30506/mmep.2025.2057941.2235
