Welcome to the website of the Group of Molecular Fluid Dynamics, of the Instituto de Estructura de la Materia CSIC in Madrid, Spain

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We are an experimental group pioneer in quantitative gas dynamics at the molecular scale by Raman spectroscopy, a form of inelastic light scattering. We study fluid flows at the interface between the microscopic description, essentially molecular and quantum, and the macroscopic one, governed by the continuum fluid mechanics. Although both limits are well developed as independent fields, their link is a sort of no-man's land lacking experimental data, sufficiently rigorous theoretical models, and efficient calculation methods.

Some of our current and past research topics are: micromapping (density and temperature mapping with resolution of micron) and kinetics of supersonic gas jets, shock waves, molecular clustering, inelastic collisions, and crystallization of microfilaments of liquid hydrogen. Our research can be ascribed to the areas of knowledge of Molecular Physics, Fluid Physics, Astrophysics and Condensed Matter Physics, and span over a thermal range from 1 to 2000 K. Two complete instruments, fully developed by our group, are operative in our laboratory.

Our group has active collaborations with those of J. Cernicharo (ICMM-CSIC), J. Campos (IFF-CSIC), I. P. Toennies (Max-Planck, Göttingen), F. Thibault (U. Rennes), T. Elizarova (RAS, Moscow), P. Skovorodko (RAS, Novosibirsk), R. Grisenti (U. Frankfurt), M. Carvajal (U. Huelva), and J. Pérez-Ríos (Purdue U.).

Latest

"Inelastic Collisions of O2 with He at Low Temperatures"
F. Gámez, J. M. Fernández, E. Moreno, G. Tejeda, M. I. Hernández, and S. Montero
Journal of Physical Chemistry A (2019), 123, 8496-8505
DOI: 10.1021/acs.jpca.9b06165 

"New Spectral Characterization of Dimethyl Ether Isotopologues CH3OCH3 and 13CH3OCH3 in the THz Region"
J. M. Fernández, G. Tejeda, M. Carvajal, and M. L. Senent
Astrophysical Journal Supplement Series 241 (1), 13 (2019)
DOI: 10.3847/1538-4365/ab041e 

"Shrinking of rapidly evaporating water microdroplets reveals their extreme supercooling"
C. Goy, M. A. C. Potenza; S. Dedera, M. Tomut, E. Guillerm, A. Kalinin, K. Voss, A. Schottelius, N. Petridis, A. Prosvetov, G. Tejeda, J. M. Fernández, C. Trautmann, F. Caupin, U. Glasmacher and R. E. Grisenti
Physical Review Letters, 120, 015501 (2018)
DOI: 10.1103/PhysRevLett.120.015501

"Molecular description of steady supersonic free jets"
S. Montero
Physics of Fluids, 29, 096101 (2017)
DOI: 10.1063/1.5001250