1.
NUCLEAR WINTER PROBLEM
It was shown that the fire source is
breaking up if its radius is greater than 8 km.
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Fire source breaking up
(R = 11km, qmax= 0.05
MBt/m2,
t = 20min)
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Maximum rise plume altitude vs time
(R = 11km, qmax=
0.05 MWt/m2)
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Velocity field. R = 11km, qmax= 0.05
MWt/m2.
t = 60 min
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1. Muzafarov, I.F. and
Utyuzhnikov, S.V., "Numerical
modeling of convective columns above a large fire in the atmosphere
", High Temperature, 1995, V.33,
N4, pp. 588-595.
2. Konyukhov, A.V.,
Meshcheryakov, M.V., and Utyuzhnikov, S.V., "Numerical simulation of the
processes of propagation of impurity from a large-scale source in the
atmosphere", High Temperature,
1999, V.37, N6, pp. 873-879.
3. Utyuzhnikov,
S.V., Onufriev, A.T., Safarov, N.A., Safarov, R.A., “Numerical and experimental simulation of large-scale conflagrations into
the stratified atmosphere”, The Division of Fluid Dynamics Meeting of the
American Physical Society, 1996.
4. Utyuzhnikov, S.V.,
“Simulation of pollution spread over conflagrations in atmosphere”, ISSEP J.,
2001, N4, pp. 122-127 (in Russian).
5. Antonenko, M.N., Konyukhov, A.V., Kraginskii, L.M.,
Meshcheryakov, M.V., and Utyuzhnikov, S.V., “Numerical modeling of intensive
convective flow in atmosphere induced by large-scale fire”, Int. J. of Computational Fluid Dynamics,
2002, V.11, N2, pp. 128-132.
6.
Utyuzhnikov, S.V., “Numerical and
laboratory prediction of smoke lofting in the atmosphere over large area
fires", J. Applied Mathematical
Modelling, 2013, 37, 3 (1): 876-887.
1.
METEORITE IMPACT
The
impact of the Comet Shoemaker-Levy 9 with Jupiter had been modelled before the
real event. It was the publication that
the depth of fragment penetration into the atmosphere was first predicted close
to the future observation data.
1. Klumov, B.A., Kondaurov,
V.I., Konyukhov, A.V., Medvedev, Yu.D., Sokolskii, A.G., Utyuzhnikov, S.V., and
Fortov,V.E., "Collision of comet
Shoemaker-Levy 9 with Jupiter: what shall we see?", J. Physics-Uspekhi,
1994, V.164, N6, pp. 577-589.
2. Klumov, B.A., Kondaurov, V.I., Utyuzhnikov, S.V., and
Fortov, V.E., "Numerical
simulations of the long-living consequences of a comet Shoemaker- Levy-9 impact
with Jupiter ", Doklady
Physics, 1994, V.337, N1, pp. 28-35.
3. Gryaznov, V.K., Ivanov, B.A., Ivlev, A.B., Klumov,
B.A., Utyuzhnikov, S.V., and Fortov, V.E., "Collision of the comet
Shoemaker- Levy 9 with Jupiter: interpretation of observed data", Earth, Moon & Planets, 1994, V.66,
N1, pp. 99-128.
The Tunguska
meteorite “explosion” (1908) was first modeled in fully 3D statement. The
developed numerical method is based on adaptive moving
meshes.
Fallen trees after the Tunguska explosion. (N.A. Strukov, 1928)
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Computational
domain
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Dynamical
pressure on the Earth, Pa
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1. Utyuzhnikov,
S.V., and Rudenko, D.V., “An adaptive moving mesh method with application to
non-tstationary hypersonic flows in the atmosphere”, J. of Aerospace Engineering Part G, August 2008, V.222, NG5, pp.
661-671.
2. Rudenko, D.V., and
Utyuzhnikov, S.V., “Use of dynamically adaptive grids for modeling
three-dimensional unsteady gas flows with high gradients”, J. of Computational Mathematics and Mathematical Physics, 2002,
V.42, N3, pp. 377-390.
3. Rudenko, D.V. and Utyuzhnikov, S.V., “Numerical
simulation of large scale perturbation of the Earth atmosphere after
explosion-like destruction of a cosmic body”,
Proceedings of the ISSW’23 (Shock Waves), Texas, 2001.
4. Kondaurov, V.I.,
Konyukhov, A.V., Polukhin, V.V., and Utyuzhnikov, S.V., "Mathematical
simulation of gas cloud motion following the atmospheric explosion of a
meteoroid", J. of Fluid Dynamics,
1998, V.33, N1, pp. 24-30.
5. Kondaurov, V.I.,
Konyukhov, A.V., Polukhin, V.V., and Utyuzhnikov, S.V., "Mathematical
simulation of gas cloud motion following the atmospheric explosion of a
meteoroid", J. of Fluid Dynamics,
1998, V.33, N1, pp. 24-30.
3. EVOLUTION OF
TURBULENT THERMALS IN THE ATMOSPHERE
Evolution of large-scale thermals in
the Earth atmosphere is studied. Different turbulent models are considered
including the k-ε and RSTM.
1. Konyukhov, A.V., Meshcheryakov, M.V., Utyuzhnikov, S.V.,
and Chudov, L.A., "Nonlocal turbulent transport in a boyuant vortex ring
during the ascent of a thermal in a stratified atmosphere", J. of Fluid Dynamics, 1999, V.34, N1,
pp. 9-16.
2. Konyukhov, A.V., Meshcheryakov, M.V., Utyuzhnikov,
S.V., and Chudov, L.A., "Numerical simulation of a
turbulent large-scale thermal", J.
of Fluid Dynamics, 1997, V.32, N3, pp. 394-401.
3. Konyukhov, A.V., Meshcheryakov, M.V., and
Utyuzhnikov, S.V., "Numerical
investigation of flow initiated in the atmosphere by a turbulent surface
thermal ", High Temperature,
1995, V.33, N5, pp. 720-724.
4. Konyukhov, A.V., Mechsheryakov, M.V., and
Utyuzhnikov S.V., "Motion of a
large-scale turbulent thermal in a stratified atmosphere", High Temperature, 1994, V.32, N2, pp. 224-228.
5. Muzafarov, I.F. and Utyuzhnikov, S.V.,
"Numerical investigation of dissipation processes influence on motion of
thermals in stratified atmosphere", Russian
J. of Computational Mechanics, 1993, V.1, N3, pp. 103-114.