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..... a few web sites for your pleasure .....
Astrophysical fluid dynamics studies have been largely developed over the last decades, because of the improvement of both experimental observational techniques and numerical simulations. Turbulent conditions are encountered in most of the astrophysical and cosmological situations. In some cases, close link with the standard Kolmogorov-type phenomonelogy can be displayed but, in many cases, other forces (such as magnetism or gravitation) become dominant so that specific new theoretical ideas or numerical techniques must be worked out. In particular, in the pressureless dust-like interstellar medium, the turbulence is nearly infinitely compressible, and is thus governed by Burgers equation, but gravitation has to be taken into account at the very large scales. On the other hand, inside stars, thermal buoyancy effects are dominant in the convective zone while the interaction with magnetic fields and their generation is important near the surface, in particular to explain the heating of the corona or the generation of stellar winds. It is thus very difficult to handle simultaneously all of these situations and different models have to be used in each of these.
Turbulent situations are encountered in astrophysics and cosmology in various problems such as the formation of the large scale structures of the universe, of the stars or the planets, and specific strategies (or models) have been developed for these applications. Turbulence is also very important in the functioning of stars which are very complicated "thermal machines", for which the strong coupling with magnetic effects is essential. The interplay between turbulence and gravitation is also essential to explain the specific anisotropic shapes of protoplanetary discs, galaxies or the largest structures of the universe.
The standard Kolmogorov-type phenomenology must be revised to account for magnetic, convective or supersonic effects on the interstellar matter properties, specific sets of equations or approximations must be used to account for the presence of specific body forces, whilst similarities and differences exist between statistical velocity properties obtained in classical wind tunnel experiments and those of, for instance, the solar wind or the extra-galactic flows of dust and gases. As a consequence, numerical simulations are, in many cases, the only "measurements" that can be made.
..... so I invite you to discover with me
the fascinating world of astrophysics :
(Images magnifiques d') Hubble (wonderful pictures)
Images faites par des astronomes amateurs :
Michel Peyro
Gérard
Thérin
Pictures made by non-professional astronomers :
(A few)
Sites
in French
(A few) Sites
in
English Livres
/ Books
A
list of web sites (in french) owned by non-professional astronomers
Sites
in French (non exhaustive list ....)
Sites
in
English (non exhaustive list ....)
Livres / Books (Liste au format .pdf / list as a .pdf file)
AUDOUZE J. 2000. L'univers. Que Sais-je, Paris.
BENEST D., FROESCHLE C., Editors. 1995. Chaos and diffusion in Hamiltonian systems, Editions Frontières, Paris.
BENEST D., FROESCHLE C. 1999. Invitation aux planètes, Editions Eska, Paris.
BENEST D., FROESCHLE C. 1999. Astéroïdes, météorites et poussières interplanétaires, Editions Eska, Paris.
BLANCHARD A. 1995. L'univers. Dominos, Flammarion, Paris.
BLANCHARD A., BOISSE P., COMBES F., MAZURE A. 2002. Galaxies et cosmologie. CNRS Editions, Paris.
BURLAGA L.F. 1995.Interplanetary magnetohydrodynamics.Oxford University Press, New-York.
CAPUZZO-DOLCETTA R., CHIOSI C., DI FAZIO A., Editors.1990. Physical processes in fragmentation and star formation.Kluwer, Dordrecht.
CHASSAING P. 2000. Turbulence en mécanique des fluides. CEPADUES Editions, Toulouse.
CHERNOV L.A. 1961.Wave propagation in a random medium, 1° édition anglaise. Mac Graw Hill, New-York.
COANTIC M., ANSELMET F., TAVERA G. 2003. La turbulence, Publié dans l'Encyclopaedia Universalis, Paris.
COUSTEIX J. 1989. Turbulence et couche limite. CEPADUES Editions, Toulouse.
FRISCH U. 1995. Turbulence : the legacy of A.N. Kolmogorov. Cambridge University Press.
GREENE B. 2000. L'Univers élégant. Robert Laffont (also Norton and Co., New York 1999).
ISHIMARU A. 1978.Wave propagation and scattering in random media. Academic Press, New-York.
LANTOS P. 1994. Le soleil. Que sais je, Paris.
LA RECHERCHE. 1998.Naissance et histoire du cosmos. Hors Série, Avril.
LENA P., Editeur.1996. Les sciences du ciel. Flammarion, Paris.
LEQUEUX J. 1976. Planètes et satellites. Que sais je, Paris.
LEQUEUX J., FALGARONE E., RYTER C. 2002. Le milieu interstellaire. CNRS Editions, Paris.
LESIEUR M. 1994. La turbulence. Presses Universitaires de Grenoble.
LESIEUR M. 1997. Turbulence in fluids, 3° Ed. Kluwer, Dordrecht.
LURCAT F. 1999. Le chaos. Que sais je, Paris.
Mc COMB W.D. 1990. The physics of fluid turbulence.Clarendon Press, Oxford.
MENEGUZZI M., POUQUET A., SULEM P.L., Editeurs. 1995. Small-scale structures in three-dimensional hydrodynamic and magnetohydrodynamic turbulence. Springer.
MONIN A.S., YAGLOM A.M. 1975. Statistical fluid mechanics : mechanics of turbulence, Vols. 1 et 2.M. I. T. Press, Cambridge, Mass.
MONTMERLE T., PRANTZOS N. 1998. Naissance, vie et mort des étoiles. Que sais-je, Paris.
MOREAU R. Magnetohydrodynamics, Ed. Kluwer, Dordrecht.
NATAF H.C., SOMMERIA J., Editeurs.2000.La physique et la terre.Belin-CNRS Editions, Paris.
PANOFSKY H.A., DUTTON J.A. 1984.Atmospheric turbulence. John Wiley and Sons.
PASSOT T., SULEM P.L., Editors.1999. Nonlinear MHD waves and turbulence. Springer.
POPE S.B. 2000. Turbulent flows. Cambridge University Press.
POUR LA SCIENCE. 1994. La vie dans l'univers. N° Spécial, Décembre.
POUR LA SCIENCE. 2001.Vie et mœurs des étoiles. Hors Série, Janvier.
PRIEST E., FORBES T. 2000. Magnetic reconnection.Cambridge University Press.
ROBERTS P.H., GLATZMAIER G.A. 2000. Geodynamo theory and simulations. Rev. Modern Physics, 72/4, pp. 1081-1123.
SCHIESTEL R. 1993. Modélisation et simulation des écoulements turbulents. Hermès, Paris.
SILK J. 1999. Le big-bang. Livre de Poche, Paris (aussi 1997, Editions Odile Jacob, Paris ; et Freeman, 2001).
TATARSKII V.I. 1961.Wave propagation in a turbulent medium, 1° édition anglaise. Mac Graw Hill, New-York.
ZAHN J.P., ZIIN-JUSTIN J., Editeurs.1993. Astrophysical fluid dynamics (Les Houches, 1987). Elsevier ou North-Holland.
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Last revised: July 28, 2009
