Departament de Física

Arantxa Alonso Maleta

Associate professor
Campus Nord (UPC), Edifici B4-B5, Despatx B5-107
Jordi Girona, 1-3
08034 Barcelona

Telèfon: +34 4054179
E-Mail: arantxafa.upc.edu
Web del grup de recerca: http://df.upc.edu
Web personal: http://futur.upc.edu/MariaAranzazuAlonsoMaleta

My research centers on investigating hydrodynamic instabilities using the methods of computational fluid dynamics and bifurcation theory. In particular, I am interested in understanding pattern formation and transition to turbulence in thermal convection problems and geophysical flows. In recent years I have focused on multicomponent mixtures with a particular emphasis on the Soret effect, which accounts for thermally-induced diffusion. This line of research explores how temperature and concentration gradients notably affect heat and mass transfer processes within systems.


Short CV

2001 - present Associate professor at the Physics Department, UPC.
1992 - 2001 Assistant Professor at the Applied Physics Department at Technical University of Catalonia.
1992 - 1999 PhD in Physics. PhD thesis title: Convección térmica en un anillo cilíndrico en rotación. Technical University of Catalonia.
1987- 1992 Degree of Physics. University of Barcelona.


1- Numerical simulation of binary convection within the Soret regime in a tilted cylinder
Alonso, Arantxa; Mercader, M.; Batiste, O.; Meseguer, A.
Journal of non-equilibrium thermodynamics 50, 263-280 (2025)

2- Bifurcation analysis in the regularized four-sided cavity flow: equilibrium states in a D 2 -symmetric fluid system
Meseguer, A.; Alonso, Arantxa; Batiste, O.; An, B.; Mellibovsky, F.
Physics of fluids 36, 6, article 064104 (2024)

3- Analyzing slightly inclined cylindrical binary fluid convection via higher order dynamic mode decomposition
Alonso, Arantxa; Mercader, M.; Batiste, O.; Vega, J.
SIAM journal on applied dynamical systems 21, 2148-2186 (2022)

4- Stationary localized solutions in binary convection in slightly inclined rectangular cells
Alonso, Arantxa; Batiste, O.; Mercader, M.
Physical review E 106, 055106 (2022)

5- Effect of small inclination on binary convection in elongated rectangular cells
Mercader, M.; Batiste, O.; Alonso, Arantxa; Knobloch, E.
Physical review E 99, 023113-1-023113-17 (2019)

6- Time-dependent patterns in quasivertical cylindrical binary convection
Alonso, Arantxa; Mercader, M.; Batiste, O.
Physical review E 97, 2 (2018)

7- Natural convection in a horizontal cylinder with axial rotation
Sanchez, O.; Mercader, M.; Batiste, O.; Alonso, Arantxa
Physical review E 93, 6 (2016)

8- Pattern selection near the onset of convection in binary mixtures in cylindrical cells
Alonso, Arantxa; Mercader, M.; Batiste, O.
Fluid dynamics research 46, 4 (2014)

9- Travelling convectons in binary fluid convection
Mercader, M.; Batiste, O.; Knobloch, E.; Alonso, Arantxa
Journal of fluid mechanics 722, 240-266 (2013)

10- Dissipative solitons in binary fluid convection
Mercader, M.; Batiste, O.; Alonso, Arantxa; Knobloch, E.
Discrete and continuous dynamical systems. Series S (paper) 4, 1213-1225 (2011)

11- Convectons, anticonvectons and multiconvectons in binary fluid convection
Mercader, M.; Batiste, O.; Alonso, Arantxa; Knobloch, E.
Journal of fluid mechanics 667, 586-606 (2011)

12- An efficient spectral code for incompressible flows in cylindrical geometries
Mercader, M.; Batiste, O.; Alonso, Arantxa
Computers and fluids 39, 215-224 (2010)

13- Localized pinning states in closed containers: homoclinic snaking without bistability
Mercader, M.; Batiste, O.; Alonso, Arantxa; Knobloch, E.
Physical review E: statistical, nonlinear, and soft matter physics 80, 5201 (2009)

14- Convectons in periodic and bounded domains
Mercader, M.; Batiste, O.; Alonso, Arantxa; Knobloch, E.
Fluid dynamics research 42, 2 (2009)

15- "Spatiotemporal dynamics near the onset of convection for binary mixtures in cylindrical containers"
Mercader, M.; Alonso, Arantxa; Batiste, O.
Physical review E, statistical physics, plasmas, fluids, and related interdisciplinary topics 77, 036313 (2008)

16- Spatiotemporal dynamics near the onset of convection for binary mixtures in cylindrical containers
Mercader, M.; Alonso, Arantxa; Batiste, O.
Physical review E: statistical, nonlinear, and soft matter physics 77, 1-9 (2008)

17- Complex dynamical states in binary mixture convection with weak negative Soret coupling (Artno 026310)
Alonso, Arantxa; Batiste, O.; Meseguer, A.; Mercader, M.
Physical review E: statistical, nonlinear, and soft matter physics 75, 2 (2007)

18- Numerical simulations of binary fluid convection in large aspect ratio annular containers
Alonso, Arantxa; Batiste, O.; Mercader, M.
European physical journal. Special topics 146, 261-277 (2007)

19- "Spatially localized binary-fluid convection"
Batiste, O.; Knobloch, E.; Alonso, Arantxa; Mercader, M.
Journal of fluid mechanics 560, 149-158 (2006)

20- "Continuation of travelling-wave solutions of the Navier-Stokes equations"
Mercader, M.; Batiste, O.; Alonso, Arantxa
International journal for numerical methods in fluids 52, 707-721 (2006)

21- "Complex dynamics near the threshold of convection for a water-ethanol mixture in a shallow cylinder"
Mercader, M.; Alonso, Arantxa; Batiste, O.
Bulletin of the American Physical Society 51(9), 184-184 (2006)

22- "Complex dynamical states in binary mixture convection with weak negative Soret coupling"
Alonso, Arantxa; Mercader, M.; Batiste, O.
Bulletin of the American Physical Society 51(9), 67-67 (2006)

23- "Pattern formation in binary mixture convection in cylindrical three-dimensional cells"
Mercader, M.; Batiste, O.; Alonso, Arantxa
Journal of physics: conference series 14, 180-191 (2005)

24- "Numerical analysis of binary fluid convection in extended systems"
Alonso, Arantxa; Batiste, O.; Mercader, M.
Journal of physics: conference series 14, 206-212 (2005)

25- "Numerical analysis of the Eckhaus instability in travelling-wave convection in binary mixtures"
Mercader, M.; Alonso, Arantxa; Batiste, O.
European physical journal E 15, 319-333 (2004)

26- "Hydrodynamic stability of binary mixtures in Bénard and thermogravitational cells"
Batiste, O.; Alonso, Arantxa; Mercader, M.
Journal of non-equilibrium thermdynamics 29 (4), 359-375 (2004)

27- "Onset of oscillatory binary fluid convection in three-dimensional cells"
Alonso, Arantxa; Batiste, O.
Theoretical and computational fluid dynamics 18, 239-250 (2004)

28- From stationary to complex time-dependent flows at moderate rayleigh numbers in two-dimensional annular thermal convection
Net, M.; Alonso, Arantxa; Sanchez, J.
Physics of fluids 15(5), 1314-1326 (2003)

29- Transition to temporal chaos in an O(2)-symmetric convective system for low Prandtl numbers
Alonso, Arantxa; Sanchez, J.; Net, M.
Progress of theoretical physics supplement 139, 315-324 (2000)

30- Onset of convection in a rotating annulus with radial gravity and heating
Alonso, Arantxa; Net, M.; Mercader, M.; Knobloch, E.
Fluid dynamics research 24, 133-145 (1999)

31- "On the transition to columnar convection"
Alonso, Arantxa; Net, M.
Physics of fluids. A, fluid dynamics 7, 935-940 (1995)