Nanofluid flow and heat transfer from heated square cylinder in the presence of upstream rectangular cylinder under Couette-Poiseuille flow

다국어 초록 (Multilingual Abstract)

A heated square cylinder (with height A*) is kept parallel to the cold wall at a fixed gap height 0.5A* from the wall. Another adiabatic rectangular cylinder (of same height A* and width 0.5A*) is placed upstream in an inline tandem arrangement. The spacing between the two cylinders is fixed at 3.0A*. The inlet flow is taken as Couette-Poiseuille flow based non-linear velocity profile. The conventional fluid (also known as base fluid) is chosen as water (W) whereas the nanoparticle material is selected as Al2O3. Numerical simulations are performed by using SIMPLE algorithm based Finite Volume approach with staggered grid arrangement. The dependencies of hydrodynamic and heat transfer characteristics of the cylinder on non-dimensional parameters governing the nanofluids and the fluid flow are explored here. A critical discussion is made on the mechanism of improvement/reduction (due to the presence of the upstream cylinder) of heat transfer and drag coefficient, in comparison to those of an isolated cylinder. It is observed that the heat transfer increases with the increase in the non-linearity in the incident velocity profile at the inlet. For the present range studied, particle concentration has a negligible effect on heat transfer.

참고문헌 (Reference)

1 Sangil Kim, "Wake and suppression of flow-induced vibration of a circular cylinder" Elsevier BV 151 : 298-307, 2018

2 Shuja, S.Z., "Vortex shedding over a rectangular cylinder with ground effect : flow and heat transfer characteristics" 12 : 916-939, 2001

3 Alam, M.M., "Vortex shedding from tandem cylinders" 59-60 : 1-17, 2018

4 Qinghua Wang, "Unsteady mixed convection in a horizontal channel with protruding heated blocks and a rectangular vortex promoter" AIP Publishing 14 (14): 2113-, 2002

5 K Tatsutani, "Unsteady flow and heat transfer for cylinder pairs in a channel" Elsevier BV 36 (36): 3311-3328, 1993

6 Vahid Etminan-Farooji, "Unconfined laminar nanofluid flow and heat transfer around a square cylinder" Elsevier BV 55 (55): 1475-1485, 2012

7 Eastman, J.A., "Thermal transport in nanofluids" 34 : 219-246, 2004

8 R.-J. Yang, "Thermal and flow analysis of a heated electronic component" Elsevier BV 44 (44): 2261-2275, 2001

9 S. Bhattacharyya, "Shear flow past a square cylinder near a wall" Elsevier BV 42 (42): 2119-2134, 2004

10 M.D. MAHBUB ALAM, "SUPPRESSION OF FLUID FORCES ACTING ON TWO SQUARE PRISMS IN A TANDEM ARRANGEMENT BY PASSIVE CONTROL OF FLOW" Elsevier BV 16 (16): 1073-1092, 2002

11 Md.Mahbub Alam, "Reduction of fluid forces acting on a single circular cylinder and two circular cylinders by using tripping rods" Elsevier BV 18 (18): 347-366, 2003

12 W. Escher, "On the Cooling of Electronics With Nanofluids" ASME International 133 (133): 051401-, 2011

13 Farhad Talebi, "Numerical study of mixed convection flows in a square lid-driven cavity utilizing nanofluid" Elsevier BV 37 (37): 79-90, 2010

14 Mohammad Sadegh Valipour, "Numerical investigation of fluid flow and heat transfer around a solid circular cylinder utilizing nanofluid" Elsevier BV 38 (38): 1296-1304, 2011

15 Patankar, S.V., "Numerical heat transfer and fluid flow" Hemisphere Publishing Corporation, Taylor and Francis Group 1980

16 Zoubida Haddad, "Natural convection in nanofluids: Are the thermophoresis and Brownian motion effects significant in nanofluid heat transfer enhancement?" Elsevier BV 57 : 152-162, 2012

17 Swati Sharma, "Nanofluid (H2O-Al2O3/CuO) flow over a heated square cylinder near a wall under the incident of Couette flow" 대한기계학회 32 (32): 659-670, 2018

18 Sandip Sarkar, "Mixed convective heat transfer of nanofluids past a circular cylinder in cross flow in unsteady regime" Elsevier BV 55 (55): 4783-4799, 2012

19 Sandip Sarkar, "Mixed convective flow stability of nanofluids past a square cylinder by dynamic mode decomposition" Elsevier BV 44 : 624-634, 2013

20 S. Lee, "Measuring Thermal Conductivity of Fluids Containing Oxide Nanoparticles" ASME International 121 (121): 280-289, 1999

21 Devarakonda, R., "Interactive computational-experimental methodologies in cooling of electronic components, Computer Mechanics Laboratory" University of California 1992

22 Dilip K. Maiti, "Interactions of Vortices of a Square Cylinder and a Rectangular Vortex Generator Under Couette–Poiseuille Flow" ASME International 137 (137): 2015

23 Ying Yang, "Heat transfer properties of nanoparticle-in-fluid dispersions (nanofluids) in laminar flow" Elsevier BV 48 (48): 1107-1116, 2005

24 Cong Tam Nguyen, "Heat transfer enhancement using Al2O3–water nanofluid for an electronic liquid cooling system" Elsevier BV 27 (27): 1501-1506, 2007

25 A. Sohankar, "Forced-convection heat transfer from tandem square cylinders in cross flow at low Reynolds numbers" Wiley 60 (60): 733-751, 2009

26 Dipankar Chatterjee, "Forced Convection Heat Transfer From Tandem Square Cylinders for Various Spacing Ratios" Informa UK Limited 61 (61): 381-400, 2012

27 Choi, S.U.S., "Enhancing thermal conductivity of fluid with nanoparticles in development and applications of nonnewtonian flows" 66 : 99-105, 1995

28 Sandip Sarkar, "Effect of cylinder rotation during mixed convective flow of nanofluids past a circular cylinder" Elsevier BV 127 : 47-64, 2016

29 Md. Mahbub Alam, "Effect of a T-shaped plate on reduction in fluid forces on two tandem cylinders in a cross-flow" Elsevier BV 94 (94): 525-551, 2006

30 Etminan, A., "Determination of flow configurations and fluid forces acting on two tandem square cylinders in cross flow and its wake pattern" 5 : 63-74, 2011

31 Rajesh Bhatt, "Couette-Poiseuille flow based non-linear flow over a square cylinder near plane wall" 한국풍공학회 26 (26): 331-341, 2018

32 Md. Mahbub Alam, "Classification of the tripped cylinder wake and bi-stable phenomenon" Elsevier BV 31 (31): 545-560, 2010

33 Kyo Sik Hwang, "Buoyancy-driven heat transfer of water-based Al2O3 nanofluids in a rectangular cavity" Elsevier BV 50 (50): 4003-4010, 2007

34 Sandip Sarkar, "Buoyancy driven flow and heat transfer of nanofluids past a square cylinder in vertically upward flow" Elsevier BV 59 : 433-450, 2013

35 Sandip Sarkar, "Analysis of Entropy Generation During Mixed Convective Heat Transfer of Nanofluids Past a Square Cylinder in Vertically Upward Flow" ASME International 134 (134): 2012

36 H.E. Ahmed, "An overview on heat transfer augmentation using vortex generators and nanofluids: Approaches and applications" Elsevier BV 16 (16): 5951-5993, 2012

37 김상일, "Aerodynamics of a cylinder in the wake of a V-shaped object" 한국풍공학회 23 (23): 143-155, 2016

38 Dilip K. Maiti, "Aerodynamic forces on square cylinder due to secondary flow by rectangular vortex generator in offset tandem: Comparison with inline" Elsevier BV 134-135 : 157-176, 2016

39 Maiti, D.K., "Aerodynamic characteristics of rectangular cylinders near a wall" 54 : 251-260, 2012

40 B.P. Leonard, "A stable and accurate convective modelling procedure based on quadratic upstream interpolation" Elsevier BV 19 (19): 59-98, 1979

41 Farhan Zafar, "A low Reynolds number flow and heat transfer topology of a cylinder in a wake" AIP Publishing 30 (30): 083603-, 2018