implementation consultation Destruction of the disturbing structure In Sahand Industrial City

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The enhancement and optimization of heat transfer are essential for energy conservation and environment protection, because heat transfer is related to almost % of total energy consumption in industry. Convective heat transfer is one of the common transport processes in industry. It is highly important to develop a theory and corresponding technology for enhancing convective heat transfer. Through numerical simulation and experimental analysis, researchers have developed many technologies to enhance the heat transfer in tube flow. Correspondingly, certain heat-transfer-enhanced tubes are exploited, such as inner-finned tubes [], spiral corrugated tubes [], and micro-finned tubes []. Bejan et al. [] divided the tube flow into two parts: boundary flow and core flow. The flow near the wall of tube is defined as boundary flow and the remaining is core flow. In the aforementioned heat-transfer-enhanced tubes, the surfaces in the boundary, which dominate the convective heat transfer between fluid and tube wall, are designed or improved to enhance heat transfer. The mechanism for heat transfer enhancement includes []: disturbing the boundary layer, extending the heat transfer surface, and changing the physical properties of the heat transfer surface. Therefore, this kind of method can be designated as surface-based heat transfer enhancement (abbreviated as the surface-based method). This method effectively enhances the convective heat transfer coefficient, but the increase in flow resistance may become significant and the comprehensive performance can be weakened.

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هر گونه باز نشر محتوا و اطلاعات نمایه شده در بانک های تحت اختیار این مرکز تنها به منظور است.فاده علمی و غیر تجاری با ایجاد پیوند به تارگاه SID و ذکر منبع مجاز است.. است.فاده از لوگو و نام مرکز به عنوان حامی و همکار علمی، بدون اخذ مجوز کتبی از "پایگاه مرکز اطلاعات علمی جهاد دانشگاهی" پیگرد قانونی دارد.



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