Institute of Mechanics

Position: Associate Professor

Department:  Fluid Mechanics

Room number: 202

Phone: +359 2 979 6421, 0877 005204

E-mail: polya@imbm.bas.bg, polya2006@yahoo.com

Scientific degrees, institution, year:

• M. Sc. Sofia University, 1998.
• Ph. D., Institute of Mechanics - BAS (VAK), 2009.
• Assoc. Professor, Institute of Mechanics - BAS, 2012.

Fields of Research:

• Numerical methods
• Application of mathematical methods in Geospace modeling.

Extended Information

Recent Publications:

1. O. Nitcheva, P. Dobreva,  B. Milev,   E. Bournaski,   Hydrology models application to solution of the river deviation problem during dam construction,  Journal of Theoretical and Applied Mechanics, vol. 50,  2019.
2. P. Dobreva, O. Nitcheva, V. Koutev, M. Kartalev, Gas-dynamic interpretation of the ion density variations in the magnetosheath: Comparison with Cluster data, AIP Conference Proceedings,  2075, 060003,  2019.
3. O. Nitcheva, A. Yordanova, B. Milev, P. Dobreva,  V. Koutev, T. Trenkova, Soil physics simulation as an option for country scale groundwater recharge estimation, AIP Conference Proceedings,  2075, 130016,  2019.
4. P. Dobreva, O. Nitcheva, M. Kartalev, A case study of the plasma in the magnetosheath using the numerical magnetosheath-magnetosphere model and THEMIS measurements, MATEC Web of Conferences, 145, 03004,  2018.
5. P. Dobreva, M. Kartalev, O. Nitcheva, N. Borodkova, G. Zastenker, Experimental and numerical investigation of plasma parameters in the magnetosheath, MATEC Web of Conferences, 145, 03003,   2018.
6. M. Stoyanova, A. Kandilarov, V. Koutev, O. Nitcheva, P. Dobreva, Potential of multispectral imaging technology for assessment coniferous forests bitten by a bark beetle in Central Bulgaria, MATEC Web of Conferences, 145,  01005, 2018.
7. P.S. Dobreva, M.D. Kartalev, N.L. Borodkova,  G.N. Zastenker, Near-magnetopause magnetosheath in 3D gasdynamic module of the numerical magnetosheath-magnetosphere model,  Advances in Space Research, 58(2),  pp. 188-195,  2016.
8. P. Dobreva, G. Zastenker, N.  Borodkova,  M. Kartalev, Modelling the magnetosphere response to the passage of an interplanetary  magnetic cloud.  Interball-1  crossings, Compt. Rend. Acad. Bulg. Sci., 66(2),  pp.  253-260, 2013.
9. M.  Kartalev, P. Dobreva, V. Keremidarska, M. Dryer, Solar wind-comet exosphere  interaction. 2. Could the single-fluid gas-dynamic model be applicable to the Rosetta mission, Journal of  Theoretical and Applied Mechanics, 42(1),  pp. 71-90,   2012.
10. V.  Keremidarska,  M.  Kartalev, P. Dobreva,  M. Dryer, Solar wind-comet exosphere interaction. 1. A single fluid gasdynamic model, Journal of  Theoretical and Applied Mechanics, 41(3),   pp. 65-82, 2011.
11. P.S. Dobreva, M.D. Kartalev, D. Koitchev, V.I. Keremidarska, M. Kaschiev, On the modular approach of a 3D model of the system magnetosheath-magnetosphere, Advances in Space Research,   41(8), pp. 1279-1285, 2008.
12. M. Kartalev, P. Dobreva, E. Amata, M. Dryer, S. Savin, Some tests of a new magnetosheath model via comparison with satellite measurement, Journal of Atmospheric and Solar-Terrestrial Physics, 70(2-4),  pp.  627-636,  2008.
13. G.N. Zastenker, M.D. Kartalev, P.S. Dobreva, N.N. Shevyrev,  A. Koval, A Comparison of Measured Parameters of  Magnetosheath Plasma with Predictions of a New Magnetosheath-Magnetosphere Model,  Cosmic Research,   46(6), pp. 469-483, 2008.
14. M. Kartalev, S. Savin, E. Amata, P. Dobreva, G. Zastenker, N. Shevyrev, Magnetopause cusp indentation: an attempt for a new model  consideration  European Space Agency, (Special Publication) ESA SP(598), pp. 339-344, 2006.
15. P.S. Dobreva, M.D.  Kartalev, N.N. Shevyrev, G.N. Zastenker, Comparison of a new magnetosphere - magnetosheath model  with  Interball-1 magnetosheath plasma measurements,  Planetary and Space Science,  53(1-3),  pp.  117-125, 2005.

Recent projects:

Project with Bulgarian research fund:

• Head of the project: "Modeling the cosmic rays and solar wind effects on the near-Earth environment", 2012-2015 г.

Participation in the following projects:

• Magnetosheath-3, 2011-2016 г., joint project between Space Research Institute (Russian Acedemy of Sciences, Moscow, Russia) and Institute of Mechanics (Bulgarian Academy of Sciences, Sofia);
• Magnetosheath-2, 2009-2010 г., joint project between Space Research Institute (Russian Acedemy of Sciences, Moscow, Russia) and Institute of Mechanics (Bulgarian Academy of Sciences, Sofia);
• Magnetosheath, 2006-2008 г.,  joint project between Space Research Institute (Russian Acedemy of Sciences, Moscow, Russia) and Institute of Mechanics (Bulgarian Academy of Sciences, Sofia);
• Magnetosheath, 2003-2005 г.,  joint project between Space Research Institute (Russian Acedemy of Sciences, Moscow, Russia) and Institute of Mechanics (Bulgarian Academy of Sciences, Sofia);
• 6FP Project (INTAS) "Solar wind: New glance in better resolution", 2007-2009;
• Project BG051PO001-3.3.04/40 „Formation of highly qualified young researchers in information technologies for optimization, pattern recognition and decision support systems”, project under Human Resource Development OP, 2009-2011;
• Project CIP-53 - International Heliospheric Year(IHY), "Modelling the magnetosheath flow and magnetopause location in the cusp region", Italian-Bulgarian collaboration,  2006 -2009.
• Project EOARD #053024  "New Techniques is Space Weather Forecasting", 2005-2006.
• Project MON NZ1315 „Self-consistent data-based model of the system atmosphere-magnetosphere-ionosphere”, 2005-2007.

Membership:

Bulgarian Union of Scientists

Bulgarian Union of Mathematicians

Honors:

• The First Young Scientist Prize, awarded at the conference "Magnetospheric Response to Solar Activity", Charles University, Prague, September 9-12, 2003.
• National award 2009 for best PhD thesis.

Institute of Mechanics tel.: +359 2 973 31 40; e-mail: office@imbm.bas.bg