Numerical study of the effect of magnetic field on velocity and pressure drop of magneto hydrodynamic fluid in blanket

Document Type : Original Article

Authors
Mobin ghafari shad 1
Mostafa Valizadeh Ardalan 2
Ali Javadi 3
1 Department of Mechanical Engineering, University of Bergamo, Bergamo, Italy
2 Department of Mechanical Engineering, Shahroud University of Technology, Shahroud, Iran.
3 Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
10.22034/stme.2023.168720
Abstract
The present study investigates the structure of a nuclear fusion reactor and the importance of magnetic hydrodynamic fluid. In reactors, the fluid is separated from the main body of the blanket by a separating layer. The separating structure is important in two ways. This structure primarily acts as a thermal insulator. The second priority is used for the separator to adjust the pressure and reduce it. The topics selected in this study are: the effect of magnetic field strength, profiles and dimensions of a blanket, wall thickness, flow velocity and pressure drop, as well as the profile of flow velocity changes due to magnetic field strength. The results show that the maximum velocity in blanket with rectangular cross section in 1T field is 11% and in 4T field is 9% faster than blanket with square cross section. Also, increasing the magnitude of the magnetic field from 1T to 4T causes a 9-fold increase in pressure drop in the blanket with a square cross-section and an 11-fold increase in the pressure drop in the blanket with a rectangular cross-section.
Keywords
Magneto hydrodynamics
Blanket
Pressure drop
Magnetic field
Numerical study
Nuclear fusion
Subjects
[1] S. Smolentsev, N. Morley, M. Abdou, R. Munipalli, R. Moreau, Current approaches to modeling MHD flows in the dual coolant lead lithium blanket, Magneto hydrodynamics, 42(2-3) (2006) 225-236.
[2] C.N. Kim, A.H. Hadid, M.A. Abdou, Development of a computational method for the full solution of MHD flow in fusion blankets, Fusion Engineering and Design, 8 (1989) 265-270.
[3] X. Wang, E. Mogahed, I. Sviatoslavsky, MHD, heat transfer and stress analysis for the ITER self-cooled blanket design, Fusion Engineering and Design, 24(4) (1994) 389-401.
[4] K. Starke, L. Buhler,  S. Horanyi,  Experimental  MHD–flow  analyses in  a  mock-up  of  a  test  blanket  module  for ITER, Fusion  Engineering  and  Design, 84(7-11)  (2009)  1794-1798. 
[5] F.C.  Li,  D.  Sutevski,  S.  Smolentsev,  M.  Abdou,  Experimental  and  numerical  studies  of  pressure  drop  in  PbLi flows  in  a  circular  duct  under  non-uniform  transverse  magnetic  field,  Fusion  Engineering  and  Design,  88(11) (2013)  3060-3071. 
[6] I.  Fernández-Berceruelo,  D.  Rapisarda,  I.  Palermo,  L.  Maqueda,  D.  Alonso,  T.  Melichar,  O.  Frýbort,  L.  Vála, Á.  Ibarra,  Thermal-hydraulic  design  of  a  DCLL  breeding  blanket  for  the  EU  DEMO,  Fusion  Engineering  and Design, 124 (2017)  822-826.
[7] YuanMa, RasulMohebbi, M.M.Rashidi, ZhigangYang, Mikhail A.Sheremet, Numerical study of MHD nanofluid natural convection in a baffled U-shaped enclosure, International Journal of Heat and Mass Transfer, 130 (2019) 123-134.
[8] H. Hulin, Y. Shimou, A. Fawad, Effect of nano-coating on corrosion behaviors of DCLL blanket channel, International Journal of Heat and Mass Transfer, 141 (2019) 444-456.
[9] C.  Soto,  S.  Smolentsev,  C.  García-Rosales,  Mitigation  of  MHD  phenomena  in  DCLL  blankets  by  Flow Channel  Inserts based on a  SiC-sandwich material  concept, Fusion Engineering  and Design, 151  (2020)  111381. 
[10] J. Slabber, PBMR Safety analyses and tests in South Africa Presentation at the IAEA Workshop on Safety demonstration and market potential for high temperature gas cooled reactors, 273 (2020).
[11] J. Jonas and I. Fernandez, components internal and external del Programa Consolider TECNO FUS Technical report, EURATOM-CIEMAT Association, CSD 079 (2021).
[12] Smolentsev, S., et al., MHD and heat transfer considerations for the US DCLL blanket for DEMO and ITER TBM. Fusion Engineering and Design, (2021) .83(10): p. 1788-1791.
[13] Z.H.  Liu,  L.  Chen,  M.J.  Ni,  N.M.  Zhang,  Effects  of  magnetohydrodynamic  mixed  convection  on  fluid  flow and  structural  stresses  in  the  DCLL  blanket,  International  Journal  of  Heat  and  Mass  Transfer,  135  (2019)  847-859. 
[14] S.I.  Sidorenko,  A.Y.  Shishko,  Variational  method  of  calculation  of  MHD  flows  in  channels  with  large  aspect ratios  and conducting  walls, Magneto Hydrodynamics, 27(4)  (1991)  437-445.
[15] E.M. De Les Valls, L. Sedano, L. Batet, I. Ricapito, A. Aiello, O. Gastaldi, F. Gabriel, Lead–lithium eutectic material database for nuclear  fusion technology, Journal  of Nuclear Materials 376(3) (2008) 353-357.
[16] L. Buhler, S. Horanyi, and E. Arbogast, Experimental investigation of liquid-metal flows through a sudden expansion at fusion-relevant Hartmann numbers Fusion Engineering and Design (2007) 82 2239–2245.
Science and Technology in Mechanical Engineering
Volume 1, Issue 1 - Serial Number 1
February 2023
Pages 113-125

  • Receive Date 14 July 2022
  • Revise Date 15 December 2022
  • Accept Date 18 January 2023
  • First Publish Date 20 February 2023
  • Publish Date 20 February 2023