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تحلیل عددی تأثیر چیدمان دو استوانه چرخان بر افزایش انتقال حرارت جریان نانوسیال ترکیبی درون یک محفظه باز | ||
| نشریه مهندسی مکانیک امیرکبیر | ||
| مقاله 7، دوره 54، شماره 1، فروردین 1401، صفحه 145-168 اصل مقاله (21.03 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2021.19823.7125 | ||
| نویسنده | ||
| حسام مویدی* | ||
| دانشکده مهندسی مکانیک، دانشگاه گیالن، رشت، ایران. | ||
| چکیده | ||
| در مقاله حاضر، تأثیر چیدمان‌های مختلف دو استوانه چرخان درون یک محفظه باز دارای دریچه‌های ورودی و خروجی بر الگوی جریان و افزایش انتقال حرارت جابجایی اجباری نانوسیال ترکیبی اکسید آلومینیوم-مس با پایه آب در محدوده رژیم آرام به صورت عددی مورد مطالعه قرار گرفته است. در این مطالعه، تأثیر پارامترهایی از قبیل چیدمان استوانه‌ها (A، B، C و D)، و همچنین سرعت زاویه‌ای چرخش استوانه‌ها (10- الی 10+)، عدد رینولدز (100 الی 500) و کسر حجمی نانوذرات 0/5 الی 3 درصد) بر الگوی جریان و انتقال حرارت بررسی شده است. نتایج حاکی از آن است که چیدمان D نسبت به سایر چیدمان‌ها، دارای بیشترین مقدار افزایش انتقال حرارت و شاخص ارزیابی عملکرد می‌باشد. همچنین نتایج نشان می‌دهد که با افزایش سرعت زاویه‌ای استوانه‌ها، عدد رینولدز جریان ورودی به محفظه و کسر حجمی، شاخص ارزیابی عملکرد افزایش می‌یابد. همچنین با چرخش استوانه‌ها در جهت پادساعتگرد نسبت به چرخش ساعتگرد، شاخص ارزیابی عملکرد افزایش چشمگیری یافته و حدو1/30 برابر می‌شود. همچنین نتایج نشان می‌دهد که نانوسیال ترکیبی اکسید آلومینیوم-مس با پایه آب، موجب افزایش عدد ناسلت متوسط نسبت به نانوسیال مس با پایه آب و همچنین افزایش شاخص ارزیابی عملکرد نسبت به نانوسیال اکسید آلومینیوم با پایه آب می‌شود. | ||
| کلیدواژه‌ها | ||
| تحلیل عددی؛ محفظه باز؛ نانوسیال ترکیبی؛ استوانه‌های چرخان؛ انتقال حرارت | ||
| عنوان مقاله [English] | ||
| Numerical Analysis of the Effect of Configurations of Double Rotating Cylinders on Heat Transfer Enhancement Hybrid Nanofluid Flow in a Vented Cavity | ||
| نویسندگان [English] | ||
| Hesam Moayedi | ||
| Thermo-Fluids Department, Faculty of Mechanical Engineering, University of Guilan, Iran | ||
| چکیده [English] | ||
| In this paper, the effect of configurations of rotating cylinders in a vented cavity with inlet and outlet port on the flow field and heat transfer enhancement of forced convection of Al2O3/Cu-water hybrid nanofluid flow in the laminar regime is numerically investigated. In this study, the influence of parameters as configurations of cylinders (A, B, C, and D), as well as the rotational velocity of cylinders (from -10 to +10), Reynolds number (from 100 to 500), and the volume fraction of nanoparticles (from 0.5% to 3%) on the flow field and heat transfer are studied. Results indicate that the average Nusselt number and the Performance Evaluation Index for configuration D are higher than other configurations. Also, it is obvious that by increasing the rotational velocity of cylinders, Reynolds number, and the volume fraction of nanoparticles, the Performance Evaluation Index increases. Also, by rotating the cylinders in the counterclockwise rotation direction with respect to the clockwise rotation direction, the η increases about 1.30. The results show that Al2O3/Cu-water hybrid nanofluid causes heat transfer enhancement compared to the Cu-water nanofluid and it increases the Performance Evaluation Index compared to the Al2O3-water nanofluid. | ||
| کلیدواژه‌ها [English] | ||
| Numerical analysis, Vented cavity, Hybrid nanofluid, Rotating cylinders, Heat transfer | ||
| مراجع | ||
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[1] G.A. Sheikhzadeh, M. Sepehrnia, M. Rezaie, M. Mollamahdi, Natural Convection of Turbulent Al2O3-Water Nanofluid with Variable Properties in a Cavity with a Heat Source and Heat Sink on Vertical Walls, Amirkabir Journal of Mechanical Engineering, 50(6) (2019) 1237-1250. (in Persian). [2] M. Bashir, S. Jafarmadar, S. Yekani Motlagh, S. Khalilarya, Numerical Simulation of Flow, Natural Convection and Distribution of Nano Particles Inside Trapezoidal Cavity using Buongiorno’s Two-Phase Model, Amirkabir Journal of Mechanical Engineering, 52(9) (2019) 2537-2550. (in Persian). [3] M. Moradzadeh, B. Ghasemi, A. Raisi, Nanofluid mixed-convection heat transfer in a ventilated cavity with a baffle, Amirkabir Journal of Mechanical Engineering, 48(3) (2016) 257-266. (in Persian). [4] N.S. Gibanov, M.A. Sheremet, H.F. Oztop, N. Abu-Hamdeh, Mixed convection with entropy generation of nanofluid in a lid-driven cavity under the effects of a heat-conducting solid wall and vertical temperature gradient, European Journal of Mechanics-B/Fluids, 70 (2018) 148-159. [5] B. Sharma, B. Kumar, R.N. Barman, Numerical investigation of Cu-water nanofluid in a differentially heated square cavity with conducting solid square cylinder at center, International Journal of Heat and Technology, 36(2) (2018) 714-722. [6] R. Hassanzadeh, R. Rahimi, A. Khosravipour, S. Mostafavi, H. Pekel, Analysis of natural convection in a square cavity in the presence of a rotating cylinder with a specific number of roughness components, International Communications in Heat and Mass Transfer, 116 (2020) 104708. [7] V. Costa, A. Raimundo, Steady mixed convection in a differentially heated square enclosure with an active rotating circular cylinder, International Journal of Heat and Mass Transfer, 53(5-6) (2010) 1208-1219. [8] K. Khanafer, S. Aithal, K. Vafai, Mixed convection heat transfer in a differentially heated cavity with two rotating cylinders, International Journal of Thermal Sciences, 135 (2019) 117-132. [9] A.J. Chamkha, F. Selimefendigil, M.A. Ismael, Mixed convection in a partially layered porous cavity with an inner rotating cylinder, Numerical Heat Transfer, Part A: Applications, 69(6) (2016) 659-675. [10] Y.G. Park, H.S. Yoon, M.Y. Ha, Natural convection in square enclosure with hot and cold cylinders at different vertical locations, International Journal of Heat and Mass Transfer, 55(25-26) (2012) 7911-7925. [11] S.H. Hussain, A.K. Hussein, Mixed convection heat transfer in a differentially heated square enclosure with a conductive rotating circular cylinder at different vertical locations, International Communications in Heat and Mass Transfer, 38(2) (2011) 263-274. [12] M. Nazari, S. Maleki-Delarestaghi, A. Shakeri, Experimental Investigation of the Forced Convection Heat Transfer of Nanofluids in Curved Tubes, Amirkabir Journal of Mechanical Engineering, 50(2) (2018) 347-358. (in Persian). [13] A.I. Alsabery, M.A. Ismael, A.J. Chamkha, I. Hashim, Numerical investigation of mixed convection and entropy generation in a wavy-walled cavity filled with nanofluid and involving a rotating cylinder, Entropy, 20(9) (2018) 664. [14] F. Selimefendigil, M.A. Ismael, A.J. Chamkha, Mixed convection in superposed nanofluid and porous layers in square enclosure with inner rotating cylinder, International Journal of Mechanical Sciences, 124 (2017) 95-108. [15] R. Roslan, H. Saleh, I. Hashim, Effect of rotating cylinder on heat transfer in a square enclosure filled with nanofluids, International Journal of Heat and Mass Transfer, 55(23-24) (2012) 7247-7256. [16] B. Karbasifar, M. Akbari, D. Toghraie, Mixed convection of Water-Aluminum oxide nanofluid in an inclined lid-driven cavity containing a hot elliptical centric cylinder, International Journal of Heat and Mass Transfer, 116 (2018) 1237-1249. [17] A. Moghadassi, E. Ghomi, F. Parvizian, A numerical study of water based Al2O3 and Al2O3–Cu hybrid nanofluid effect on forced convective heat transfer, International Journal of Thermal Sciences, 92 (2015) 50-57. [18] M.N. Labib, M.J. Nine, H. Afrianto, H. Chung, H. Jeong, Numerical investigation on effect of base fluids and hybrid nanofluid in forced convective heat transfer, International Journal of Thermal Sciences, 71 (2013) 163-171. [19] S. Mehryan, E. Izadpanahi, M. Ghalambaz, A. Chamkha, Mixed convection flow caused by an oscillating cylinder in a square cavity filled with Cu–Al2O3/water hybrid nanofluid, Journal of Thermal Analysis and Calorimetry, 137(3) (2019) 965-982. [20] M. Ghalambaz, A. Doostani, E. Izadpanahi, A.J. Chamkha, Conjugate natural convection flow of Ag–MgO/water hybrid nanofluid in a square cavity, Journal of Thermal Analysis and Calorimetry, 139(3) (2020) 2321-2336. [21] A. Ghennai, R. Bessaїh, Heat transfer enhancement in a cubical cavity filled with a hybrid nanofluid, Heat Transfer, 50(2) (2021) 1658-1678. [22] L. Koufi, Z. Younsi, Y. Cherif, H. Naji, Numerical investigation of turbulent mixed convection in an open cavity: effect of inlet and outlet openings, International Journal of Thermal Sciences, 116 (2017) 103-117. [23] S. Balaji, S. Lakshminarayanan, Improved design of microchannel plate geometry for uniform flow distribution, The Canadian Journal of Chemical Engineering, 84(6) (2006) 715-721. [24] E. Sourtiji, S. Hosseinizadeh, M. Gorji-Bandpy, D. Ganji, Heat transfer enhancement of mixed convection in a square cavity with inlet and outlet ports due to oscillation of incoming flow, International Communications in Heat and Mass Transfer, 38(6) (2011) 806-814. [25] L.M. Jasim, H. Hamzah, C. Canpolat, B. Sahin, Mixed convection flow of hybrid nanofluid through a vented enclosure with an inner rotating cylinder, International Communications in Heat and Mass Transfer, 121 (2021) 105086. [26] F. Selimefendigil, H.F. Öztop, Effects of a rotating tube bundle on the hydrothermal performance for forced convection in a vented cavity with Ag–MgO/water hybrid and CNT–water nanofluids, Journal of Thermal Analysis and Calorimetry, (2020) 1-18. [27] N.A. Zainal, R. Nazar, K. Naganthran, I. Pop, Unsteady MHD stagnation point flow induced by exponentially permeable stretching/shrinking sheet of hybrid nanofluid, Engineering Science and Technology, an International Journal, (2021). [28] H. Moayedi, Numerical analysis of the effect of baffle on heat transfer enhancement nanofluid flow over a backward facing step: A correlation for the average Nusslet number, Amirkabir Journal of Mechanical Engineering, (2020). (in Persian). [29] H. Moayedi, Numerical investigation of the effect of oscillating injection nanofluid flow on forced convection heat transfer enhancement over a backward-facing step, The European Physical Journal Plus, 135(11) (2020) 1-19. [30] K. Khanafer, S. Aithal, Mixed convection heat transfer in a lid-driven cavity with a rotating circular cylinder, International Communications in Heat and Mass Transfer, 86 (2017) 131-142. | ||
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