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Московский государственный университет им. М.В. Ломоносова PowerPoint PPT Presentation


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ЛАБОРАТОРИЯ МНОГОМАСШТАБНОГО МОДЕЛИРОВАНИЯ. Многомасштабное моделирование гетерогенных каталитических процессов на теплозащитных покрытиях космических аппаратов. В.Л. Ковалев. Московский государственный университет им. М.В. Ломоносова. Институт космических исследований РАН,

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Московский государственный университет им. М.В. Ломоносова

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..

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,

. 11-13 2009


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J*q /Jq

1-kw=0 , 2-kw=3 m/s , 3-kw=10 m/s

Mesur


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Scott, Kolodziej - Stewart

Zoby, , , ...

Phenomenological Models

Jumper, Willey, Bruno, Deutschmann, Dai, Kurotaki,

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Space Shuttle

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Scott, Kolodziej Stewart, Zoby...

D. A. Stewart and D. B. Leiser ;

Kolodziej Stewart


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: N2, O2, N2*, O2*, O, Ar


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1-k =0, 2-k =3,5 m/s,3-k =

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MD Trajectories

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SiO2

b cristobalite

Ralph W.G. Wyckoff The crystal structure of the high temperature form of cristobalite (SiO2), American Journal of Science, Ser.5, Vol.9, 1925, pp.448-459

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SiO2

SiO2

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SiO2

SiO2

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3C-SiC

3C-SiC

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Al2O3

Al2O3.


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, O (3P) Al4O6, - Al2O3.


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Y. Ye, C.C. Ahn, C. Witham, B. Fultz, J. Liu, A.G. Rinzler, D. Colbert, K.A. Smith, R.E. Smalley

(10,10)

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Ea

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r

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n

n

T=80K

P=12atm

T=80K

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T=80K

P=60atm

r

r

r

n

T=298K

P=90atm

r


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=>


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1 - ,

2 -

3 - ,

4 - Y. Ye, C.C. Ahn, C. Witham, B. Fultz, J. Liu, A.G. Rinzler, D. Colbert, K.A. Smith, R.E. Smalley. (1999)

5 - N. Hu, X. Sun, A. Hsu. (2005)

6 - Lawrence J, Xu Gu (2004)

T=80K

T=298K


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0.8

1.0

1.5 V0

0

1.0Tw

0.9 Tw


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(Bird


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