 | | Journal of Applied
Mathematics and Mechanics
Russian Academy of Sciences | | Founded
in January 1936
(Translated from 1958)
Issued 6 times a year
ISSN 0021-8928
(print version) |
Archive of Issues
| Total articles in the database: | | 10522 |
| In Russian (ΟΜΜ): | | 9723
|
| In English (J. Appl. Math. Mech.): | | 799 |
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| << Previous article | Volume 81, Issue 3 / 2017 | Next article >> |
| A.A. Afanasyev and E.A. Belyaeva, "The stability of serpentization due to the water flow in a kimberlite pipe," J. Appl. Math. Mech. 81 (3), 206-213 (2017) |
| Year |
2017 |
Volume |
81 |
Issue |
3 |
Pages |
206-213 |
| DOI |
10.1016/j.jappmathmech.2017.08.012 |
| Title |
The stability of serpentization due to the water flow in a kimberlite pipe |
| Author(s) |
A.A. Afanasyev (Institute of mechanics, Lomonosov Moscow State University, Moscow, Russia, afanasyev@imec.msu.ru)
E.A. Belyaeva (Institute of mechanics, Lomonosov Moscow State University, Moscow, Russia, eabelyaeva_94@mail.ru) |
| Abstract |
A linear analysis of the stability of the course of serpentization, that is, of the exothermic hydration reaction, due to the flow of water in a kimberlite pipe is carried out, taking both the heat conduction and the convective heat transfer by the fluid saturating the pipe rocks into account. It is shown that two different serpentization processes exist: a homogeneous process and an inhomogeneous process associated with a loss of stability by the homogeneous process and a non-uniform reaction rate distribution. Dimensionless similarity parameters that determine the course of the reaction are proposed. It is shown that convective heat transfer promotes a stabilization of the flow and the formation of a homogeneous serpentinite distribution. Other conditions being equal, an increase in the convective heat flux leads to an increase in the wavelengths of the unstable perturbations and to a decrease in their amplitude. A critical value of the flow rate exists, and, when this is exceeded, instability does not develop and serpentinization takes place under homogeneous conditions. |
| Received |
30 November 2016 |
| Link to Fulltext |
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