Numerical Simulation of the Heat-Fluid Flow Behavior Around the Cylinder with the Controller Wire

علوم کاربردی و محاسباتی در مکانیک

Article 7, Volume 31, Issue 2 - Serial Number 22, 2020, Pages 105-126   

Document Type: Original Article

DOI: 10.22067/fum-mech.v31i2.83998

Authors

Tohid Adibi^{* 1}; Syad Esmail Razavi²; Ehsan Abbasi Tabrizi³

¹Department of Mechanical Engineering, University of Bonab, Bonab, Iran

²Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran

³Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran.

Abstract

In this paper, the effects of tripwire in upstream of flow over a circular cylinder in a 2D channel and Re=100 has been investigated. The dimensions of the channel are 20D×50D. The distance between cylinder and wire is considered from 1.5D to 6D, and the relative size of wire is considered from 0.1D to 0.9D. The governing equations are continuity, momentum, and energy for 2D, incompressible, unsteady and vicious conditions. The no-slip condition for both cylinder wall, constant temperature for cylinder, and adiabatic wall for wire have been considered in this paper. The followed equations have been solved by the back-ward differentiate method and the CFD software - COMSOL MULTYPHISIC. The results show that the higher diameter of the wire and horizontal and vertical distances of the wire causes a higher decrease in values of cylinder’s drag and heat transfer. At all, It is found that existing of wire in upstream, decreases the drag and heat transfer of the cylinder but oscillating wire with the amplitude of 0.25D and relative distance and diameters of 3D and.3D causes increasing in discussed parameters relative to the stationary state of them.

Keywords

Circular Cylinder; Controller Wire; Laminar Flow; Heat Transfer

Supplementary Files

EA(22)-7- adibi-Revised.pdf

References

1-   Gao, D. L., Chen, W. L., Li, H., and Hu, H., "Flow around a circular cylinder with slit", Experimental Thermal and Fluid Science, Vol. 82, pp. 287-301, (2017).

2-   Tamoor, M., Waqas, M., Khan, M. I., Alsaedi, A., and Hayat, T., "Magnetohydrodynamic flow of Casson fluid over a stretching cylinder", Results in Physics, Vol. 7, pp. 498-502, (2017).

3-   Adibi, T., and Razavi, S. E., "A new characteristic approach for incompressible thermo-flow in Cartesian and non-Cartesian grids", International Journal for Numerical Methods in Fluids, Vol. 79, pp. 371-393, (2015).

4-    بهروزی، ب.، تبریزی، ح. ب. و دامنگیر، ا.، "بررسی تجربی تأثیر زبری سطح بر تشکیل برفک روی استوانه"، علوم کاربردی و محاسباتی در مکانیک، شماره 30، صفحه 60-51، (2018).

5-    وند، ح. ا. س.، و پارسا، ا. ب.، "بررسی عددی و تحلیلی اثرات تفرق حرارتی بر انتقال حرارت جریان نانوسیّال درون یک کانال," علوم کاربردی و محاسباتی در مکانیک، شماره 29، صفحه 40-21، (2018).

6-   Adibi, T., "Experimental investigation about drag force on the both icy and non-icy airfoils", Instrumentation Mesure Metrologie, Vol. 18, pp. 49-54, (2019).

7-   Soltani Ayan, M., Entezari, M., and Chini, S. F., "Experiments on skin friction reduction induced by superhydrophobicity and Leidenfrost phenomena in a Taylor-Couette cell", International Journal of Heat and Mass Transfer, Vol. 132, pp. 271-279, (2019).

8-   Alam, M. M., Moriya, M., Takai, K., and Sakamoto, H., "Fluctuating fluid forces acting on two circular cylinders in a tandem arrangement at a subcritical Reynolds number", Journal of Wind Engineering and Industrial Aerodynamics, Vol. 91, pp. 139-154, (2003).

9-   Zhang, P. F., Wang, J. J., and Huang, L. X., "Numerical simulation of flow around cylinder with an upstream rod in tandem at low Reynolds numbers", Applied Ocean Research, Vol. 28, pp. 183-192, (2006).

10- Juncu, G., "A numerical study of momentum and forced convection heat transfer around two tandem circular cylinders at low Reynolds numbers. Part II: Forced convection heat transfer", International Journal of Heat and Mass Transfer, Vol. 50, pp. 3799-3808, (2007).

11- Mahír, N., and Altaç, Z., "Numerical investigation of convective heat transfer in unsteady flow past two cylinders in tandem arrangements", International Journal of Heat and Fluid Flow, Vol. 29, pp. 1309-1318, (2008).

12- Wang, Y. t., Yan, Z.-m., and Wang, H.-m., "Numerical simulation of low-Reynolds number flows past two tandem cylinders of different diameters", Water Science and Engineering, Vol. 6, pp. 433-445, (2013).

13- Mahir, N., and Altaç, Z., "Numerical Investigation of Flow and Heat Transfer Characteristics of Two Tandem Circular Cylinders of Different Diameters", Heat Transfer Engineering, Vol. 38, pp. 1367-1381, (2017).

14-  رضوی، س.، و محمدی‌سفیدان، ع.، "بررسی عددی تأثیر مفتول کنترلگر روی مشخصه‌های جریان سیّال-گرما حول استوانه دایروی محصور در کانال"، مهندسی مکانیک دانشگاه تبریز، شماره 46، صفحه 129-123، (2017).

15- S., Bao, Chen, S., Liu, Z., Li, J., Wang, H., and Zheng, C., "Simulation of the flow around an upstream transversely oscillating cylinder and a stationary cylinder in tandem", Physics of Fluids, Vol. 24, p. 023603, (2012).

16- Fu, Y., Zhao, X., Wang, X., and Cao, F., "Computation of Flow Past an In-Line Oscillating Circular Cylinder and a Stationary Cylinder in Tandem Using a CIP-Based Model", Mathematical Problems in Engineering, Vol. 2015, pp. 9, (2015).