فهرست:
فصل اول.. 1
مقدمه. 1
1-1 لایه مرزی.. 1
1-2 تبدیل جریان آرام به آشفته. 2
1-3 جدایی جریان.. 3
1-4 روشهای افزایش انتقال حرارت... 4
1-5 گردابه. 5
1-6 ریزش گردابه. 5
1-7 تولید کنندههای گردابه. 7
1-8 کاربردهای تولیدکننده گردابه. 8
1-9 سیالات غیر نیوتنی.. 9
1-9-1 سیال مستقل از زمان.. 10
1-9-1-1 سیالات شبه پلاستیک.... 11
1-9-1-2 سیال ویسکوپلاستیک.... 15
1-9-1-3 سیالات دایلاتنت... 18
1-9-2 سیال وابسته به زمان.. 18
1-10جمع بندی.. 19
بررسی و مرور تحقیقات گذشته. 20
2-1مقدمه. 20
2-2تحقیقات انجام شده برای سیالات نیوتنی.. 20
2-3تحقیقات انجام شده برای سیالات غیرنیوتنی.. 27
2- 4جمع بندی.. 39
فصل سوم. 40
تعریف مسئله و روش حل.. 40
3-1هندسه مسئله دو بعدی.. 40
3-2 هندسه مسئله سه بعدی.. 42
3-3 معادلات حاکم در جریان آرام. 44
3-4 روش حل معادلات... 45
3-4-1گسستهسازی معادلات حاکم.. 46
3-4-2جمله جابجایی.. 47
3-4-2-1طرح اختلاف مرکزی.. 48
3-4-2-2طرح اختلاف بالادست... 48
3-4-2-3طرح اختلاف پیوندی.. 49
3-4-2-4طرح اختلاف بالادست مرتبه دوم(QUICK) 50
3-4-2-5 طرح اختلاف CHARM 50
3-4-3 ترم نفوذ. 51
3-5 الگوریتم حل سرعت-فشار 51
3-6 درونیابی ری-چو. 54
3-7 گسسته سازی زمانی.. 55
3-8 روند حل عددی.. 55
3-9 شرایط مرزی.. 56
3-9-1 شرط مرزی ورودی.. 56
3-9-2شرط مرزی خروجی.. 56
3-9-3شرط مرزی دیواره 57
3-10 نحوه شبکه بندی.. 57
فصل چهارم. 60
تجزیه و تحلیل نتایج.. 60
4-1 مقدمه. 60
4-2 نتایج مسئله دوبعدی.. 60
4-2-1 بررسی شبکه. 60
4-2-2 اعتبار سنجی نتایج.. 61
4-2-3 ارائه و تحلیل نتایج.. 63
4-2-4 بررسی تأثیر فاصله بین سیلندری در افزایش انتقال حرارت و ساختار جریان.. 99
4-3 نتایج مسئله سه بعدی.. 116
4-3-1 بررسی شبکه. 117
4-3-2 ارائه و تحلیل نتایج.. 118
4-3-3 تأثیر ارتفاع تولید کننده گردابه بر ساختار جریان و انتقال حرارت... 133
4-4 جمع بندی، نتیجه گیری و پیشنهادات... 141
منابع و مآخذ. 143
منبع:
[1] صنیعی نژاد،مهدی، مقدمه ای بر جریانهای آشفته و مدلسازی آنها، ویرایش سوم،خرداد83.
[2]Jacobi.A.M,Shah.R.K,"Heat Transfer Surface Enhancement through the Use of Logitudinal Vortices:A Reviw of Recent Progress", Experimental Thermal and Fluid Science,Vol.11,pp.295-309,1995
[3] لاهوتی،محسن،مقدمه ای بر دینامیک ورتکس ها، گروه دینامیک سیالات محاسباتی دانشگاه صنعتی اصفهان،بهار88.
[4]R.Paneer Selvam, Suresh Govindaswamy,2001.A report on aeroelastic analysis of bridg grider section using computer modeling, Mack Blackwell Transportation Center.
[5] Fiebig Martin ," Embedded vortices in internal flow:heat transfer and pressure loss enhancement", International Journal of Heat and Fluid Flow,Vol.16,pp.376-378,1995.
[6]Clara Marlika Velte,”Characterization of Vortex Generator Induced Flow”, PHD thesis, Technical University of Denmark.
[7]Chhabara.R.P,J.F.Richardson," Non-newtonian flow and applied rheology", 2008. ISBN:978-07506-8532-0.
[8] A. Sohankar,C. Norberg and L. Davidson “Low-Reynolds-Number Flow Around a Square Cylinder at Incidence: Study of Blockage, Onset of Vortex Shedding and Outlet Boundary Condition”, International Journal for Numerical Methods in Fluids, Vol. 26, pp.39-56 ,1998.
[9] Said Turki, Hassen Abbassi a, Sassi Ben Nasrallah,”Two-dimensional laminar fluid flow and heat transfer in a channel with a built-in heated square cylinder”, International Journal of Thermal Sciences, Vol.42, pp.1105–1113, 2003.
[10]Sohankar.A," Heat transfer augmentation in a rectangular channel with a vee-shaped vortex generator", International Journal of Heat and Fluid Flow, 2006.
[11] Wu.J.M,Tao,W.Q," Numerical study on laminar convection heat transfer in a channel with longitudinal vortex generator. Part B: Parametric study of major influence factors",International Journal of Heat and Mass Transfer,Vol. 51,pp.3683–3692,2008.
[12] Wu Junmei , Tao Wenquan,."Numerical investigation and analysis of heat transfer enhancement in channel by longitudinal vortex based on field synergy principle", Front. Energy Power Eng. China, Vol.2(1), pp.71–78,2008.
[13]Li.Ting Tian,Ya Ling He,Wen Quan Tao," Numerical study of fluid flow and heat transfer in a flat-plate channel with longitudinal vortex generators by applying field synergy principle analysis", International Communications in Heat and Mass Transfer ,Vol.36 ,pp.111–120,2009.
[14] Chunhua Min, Chengying Qi, Xiangfei Kong, Jiangfeng Dong, "Experimental study of rectangular channel with modified rectangular longitudinal vortex generators",International Journal of Heat and Mass Transfer ,Vol.53,pp.3023–3029,2010.
[15] Ganmol.Pavin,2010,"Heat Transfer In A Two-Pass Channel With Vortex Generator",Ph.D thesis, Swanson School Of Engineering, University Of Pittsburgh,USA.
[16] Paliwala B., Sharmab Atul, Chhabraa R.P., Eswaranb V.," Power law uid ow past a square cylinder: momentum and heat transfer characteristics", Chemical Engineering Science,Vol.58,pp.5315 – 5329,2003.
[17] Nitin S., Chhabra R.P.," Non-isothermal flow of a power law fluid past a rectangular obstacle (of aspect ratio 1 * 2) in a channel: Drag and heat transfer", International Journal of Engineering Science,Vol.43,pp.707–720,2005.
[18] Dhiman A. K., Chhabara R. P. and Eswaran V.,"Steady Flow of Power-Law Fluids across a Square Cylinder", Chemical Engineering Research and Design, Vol.84,pp.300–310,2006.
[19] Dhimana A.K., Chhabra R.P., Eswaran V.," Steady flow across a confined square cylinder: Effects of power-law index and blockage ratio", J. Non-Newtonian Fluid Mech.,Vol.148,pp.141–150,2008.
[20] Dhiman Amit Kumar," Heat transfer to power-law dilatant fluids in a channel with a built-in square cylinder", International Journal of Thermal Sciences Vol.48 ,pp. 1552–1563,2009.
[21] Sahu Akhilesh K., Chhabra R. P., and Eswaran V.," Forced Convection Heat Transfer from a Heated Square Cylinder to Power Law Fluids in the Unsteady Flow Rgime", Numerical Heat Transfer, Part A, Vol.56,pp. 109–131, 2009.
[22] Bouaziz Mohamed , Kessentini Sameh , Turki Saïd," Numerical prediction of flow and heat transfer of power-law fluids in a plane channel with a built-in heated square cylinder", International Journal of Heat and Mass Transfer ,Vol.53,pp.5420–5429,2010.
[23] Koteswara Rao P., Akhilesh K. Sahu, Chhabra R.P.," Momentum and heat transfer from a square cylinder in power-law fluids", International Journal of Heat and Mass Transfer,Vol. 54,pp. 390–403,2011.
[24] P. Koteswara Rao , C. Sasmal , A.K. Sahu , R.P. Chhabra , V.Eswaran," Effect of power-law fluid behavior on momentum and heat transfer characteristics of an inclined square cylinder in steady flow regime", International Journal of Heat and Mass Transfer,Vol. 54, pp.2854–2867, 2011.
[25] Aboueian Jahromi Jaber , Hossein Nezhad Alireza, Behzadmehr Amin," Effects of inclination angle on the steady flow and heat transfer of power-law fluids around a heated inclined square cylinder in a plane channel", Journal of Non-Newtonian Fluid Mechanics ,Vol.166, pp.1406–1414,2011.
[26] C.M. Rhie,W. L. Chow,1983. Numerical Study of the Turbulent Flow Past an Airfoil with Trailing Edge Seperation, AIAA J., 2, 1525-1532.
[27] B. P. Leonard, 1979. A Stble and Accurate Convective Moldeling Based on Quardratic Up-stream Interpolation, Comp. Math.