Numerical Investigation of Fluid-Structure Interaction with Mixed Convection in an Open Cavity of Flexible Wall: Effect of Geometrical Parameters

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    The object of this paper is the mixed convection and fluid flow in a cavity consisting of a flexible wall linked to a horizontal channel. A heat source segment fixed on the bottom wall while all other solid walls are thermally insulated heats up the cavity. Fluid structure interaction (FSI)is taken into account and the arbitrary Lagrangian–Eulerian (ALE) technique with FEM are adopted together to solve the discretized formulations. Impacts of various parameters on the heat exchange were investigated, these are: the channel height to cavity height ratio, represented by (H/D) = 0.5–1.1;heat source length, LH= 0.5 – 1.5;heat source location, and Ri = 0.1- 100. The results show that (H/D) has marginal impact on the Nusselt number, where only 5% enhancement is associated at H/D = 0.7 for Ri = 100. The lower the length of the heat source is the maximal the Nusselt number. A maximum enhancement in the Nusselt number of 156% is obtained when LH is decreased from 1.5 to 0.5.

     

     


  • Keywords


    fSI; open cavity; channel; flexible wall; mixed convection.

  • References


      [1] O. Manca, S. Nardini, K. Khanafer, K. Vafai, Effect of heated wall position on mixed convection in a channel with an open cavity, Numerical Heat Transfer: Part A: Applications 43(2003)259–82.

      [2] O. Manca, S. Nardini,R. Pitzolu,K. Vafai, Experimental investigation on mixed convection in a channel with an open cavity, ASME Summer Heat Transfer Conference (2003) 257–267.doi:10.1115/HT2003-47132.

      [3] J.C. Leong,N.M. Brown,F.C. Lai, Mixed convection from an open cavity in a horizontal channel, Int. Commun Heat Mass Transfer 32(2005)583–92.

      [4] Y. Stiriba, Analysis of the flow and heat transfer characteristics for assistingincompressible laminar flow past an open cavity,IntCommun Heat Mass Transfer 35 (2008)901–907.

      [5] S.M. Aminossadati, B. Ghasemi, A numerical study of mixed convection in a horizontal channel with a discrete heat source in an open cavity. European Journal of Mechanics-B/Fluids 28 (2009)590–598.

      [6] A. Al-Amiri, K. Khanafer, Fluid–structure interaction analysis of mixed convection heat transfer in a lid-driven cavity with a flexible bottom wall. Int J Heat Mass Transfer 54 (2011) 3826–3836

      [7] K. Khanafer, Comparison of flow and heat transfer characteristics in a lid-driven cavity between flexible and modified geometry of a heated bottom wall. Int J Heat Mass Transfer 78 (2014)1032–1041 .

      [8] F. Selimefendigil, H.F. Öztop, Analysis of MHD mixed convection in a flexible walled andnanofluids filled lid-driven cavity with volumetric heat generation. Int J MechSci118 (2016)113–124.

      [9] F. Selimefendigil, H.F. Öztop, Natural convection in a flexible sided triangular cavity withinternal heat generation under the effect of inclined magnetic field. J MMM 417 (2016) 327–337

      [10] E. Jamesahar, M. Ghalambaz, A.J. Chamkha, Fluid-solid interaction in natural convection heat transfer in a square cavity with a perfectly thermal conductive flexible diagonal partition. Int J Heat Mass Transfer 100 (2016)303–319.

      [11] S.A.m. Mehryan, A.J. Chamkha, M.A. Ismael, M. Ghalambaz, Fluid–structure interaction analysis of free convection in an inclined square cavity partitioned by a flexible impermeable membrane with sinusoidal temperature heating. Meccanica52 (2017)2685–2073.

      [12] M. Ghalambaz, E. Jamesahar, M.A. Ismael, A.J. Chamkha , Fluid-structure interaction study of natural convection heat transfer over a flexible oscillating fin in a square cavity. Int J ThermSci111 (2017)256–273.

      [13] J. Donea, A. Huerta, Finite element methods for flow problems, John Wiley Sons, 2003

      S. Saha, M. Ali, Finite Element Analysis of Mixed Convection in an Open Cavity Heated from Below.Proceedings of the International Conference on Fluid and Thermal Energy Conversion111 (2006) 1–9.

 

View

Download

Article ID: 28068
 
DOI: 10.14419/ijet.v7i4.19.28068




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.