Current
Researches: |
A model for the H-mode pedestal and type I ELMs, which is based on the
magnetic and ExB shear reduction of anomalous transport, is introduced. The
model takes into account the fact that different modes are suppressed at
different rate. The model is used in an integrated transport code to follow the
time evolution of tokamak discharges from the Ohmic stage through the transition
from L-mode to H-mode to the formation of the H-mode pedestal and the triggering
of ELMs. The model predicts the width and height of the H-mode pedestal and the
frequency of ELM. Two mechanisms for triggering ELMs are considered. The ELMs
can be triggered by the ballooning modes if the pressure gradient exceeds the
ballooning limit, ac,
or by peeling modes if the edge current density exceeds the peeling condition.
Suppression of the anomalous transport within the pedestal region enhances the
role on neoclassical transport in this region. Several models for the
neoclassical transport are tested together with the combined model for ELMs and
H-mode pedestal. The dependencies of pedestal temperature, pedestal width, and
frequency of ELMs as a function heating power, magnetic field, and pedestal
density are discussed (more details are
here). |
News: |
March 30, 2001
March 23, 2001
- Alcator C-Mod paper is submitted to the Physics of
Plasmas
February 28, 2001
- Module NCLASS for neoclassical diffusion is
embedded in the BALDUR code
December 20, 2000
- D3D Neon 98775 with new version of GLF23
October 13, 2000
- D3D Neon 98775 with new version of GLF23
September 13, 2000
- D3D Neon 98775 with new version of GLF23
September 6, 2000
- Comparison of the NTCC demo code with XPTOR results
for TFTR 50911
August 23, 2000
July 26, 2000
July 19, 2000
July 18, 2000
|
This page is constantly
under constructions.
Please contact me by:
E-mail |
Research
Interests
|
Dynamical systems,
plasma physics, fluid dynamics, and numerical analysis,
particularly:
-
Subcritical transition to turbulence
in plasmas; subcritical turbulence;
-
Waves and instabilities;
-
Diffusion processes in multicomponent
gas/plasma mixtures;
-
Numerical simulation of processes in
devices of plasma deposition;
-
Self-organized critically (SOC)
systems;
-
Non-linear optics: soliton
propagation in optical fibres, stimulated backscattering;
guided wave optics;
-
Neural networks;
-
Linear stability analysis.
|
|
-
Ph.D. in Physics, Institute
for Nuclear Research (1999)
Dissertation: Turbulence
of Non-Equilibrium Plasma Near Boundary of Marginal
Stability (Thesis Advisor: Prof.
Tatiana A. Davydova)
-
Business College under the Cabinet of Ministers of
Ukraine (1992)
Diploma in Management
-
M.Sc. in Physics (with honors), T.Shevchenko
Kiev University (1990)
|
|
- Numerical methods:
- Particle-in-Cell;
- Monte-Carlo;
- Neural network;
- Finite-Elements.
- Computing environments:
- MS DOS & Windows 3.11/95/98/NT/2000
- OS/2;
- Unix/LINUX;
- DEC.
- Programming languages:
- Java;
- Python;
- Fortran 77/90;
- C/C++;
- Visual Basic;
- Perl;
- Clipper;
- Pascal.
- Mathematical and simulation software:
- Maple;
- Mathematica;
- MathCAD;
- etc.
|
|
- Programming experience in C++, Java, and Fortran;
- Ph.D. in Plasma Physics at the Institute for Nuclear
Research, Kiev, Ukraine;
- Database development and maintain;
- Computational physicist: mathematical modeling and
analysis of complex phenomena, at the Lehigh and Kiev
Universities;
- Expertise in IT in the framework of the European Union
projects in Ukraine.
|
Professional
experience record
|
Date |
1999 to present |
Institution |
Lehigh University, Bethlehem, PA, USA |
Position |
Research Scientist |
Details |
- Contributed to the development of the
National Transport
Code Collaboration demo code. The project is aimed
to integrate major transport predictive models (IFS/PPPL,
GLF23, and the Multi-Mode Model) and to create fully
web-invocable interface to the international profile
database and to the predictive transport models. The
basic elements of the projects are object-oriented
programming with C++, Java, and Python, client-server
through object-oriented protocol, CORBA/IDL interface
for data and physics servers, scripted physics server,
and CVS Branching.
- Developed NTCC
module on the base of a comprehensive neutral beam
injection (NBI) package from the TRANSP transport
analysis code (more than 1,000,000 lines of code). The
model includes beam deposition, fast ion two
dimensional orbiting, beam driven current and momentum
transfer, accounts for particle collisions and charge
exchange transport of beam particles.
|
Date |
1990 to present |
Institution |
Institute for Nuclear Research of the National
Academy of Sciences of Ukraine, Kiev, Ukraine |
Position |
Scientific Researcher |
Details |
See "My previous
research experience" |
Date |
1997-2000 |
Institution |
Euro-Ukraina
Consulting, Kiev, Ukraine |
Position |
Associate consultant of Euro-Ukraina Consulting on
IT and Management Information Systems |
Details |
Preparation of bidding
documentation for tenders. Contacts with Ukrainian
high officials
I was involved in the consultancy
in:
- Energy saving
technologies;
- IT and
telecommunications;
- Expertise in database
development;
- Network installation
and maintenance;
- Personnel training;
and in particular:
-
Adaptation and translation of
the HDM-3 (World Bank), an analytical tool for
engineering and economic assessment of road
investments, maintenance strategies, transport
pricing and regulation;
-
Design, programming and
maintenance of the company web site;
-
Elaboration and maintenance
of the databases (in particular, database for
personnel department).
|
Date |
1998-1999 |
Institution |
TACIS:
Institutional Support to the Ministry of Transport :
Technical Assistance to Ukravtodor and Civil Work
Private Firms (EDUR9701) |
Position |
Expert on IT |
Details |
As
a member of the EU/local expert team I took part in
the elaboration of the Pavement Management System
(PMS). Special emphasise was made on the interface
with the HDM-model as the
most powerful tool to access the long-term
benefits of the strategies of the pavement performance
and of the vehicle operating costs. PMS is based on
the database, which contains information on traffic,
accidents, pavement structure and conditions, surface
characteristics, and road geometry. The system (the
database + HDM) aims to perform long-term planning
with the focus on:
-
Forecasting the
future condition of roads according to their
actual condition and loading;
-
Evaluating the
effects of maintenance on this condition;
-
Calculating the
road user costs related to traffic and road
conditions;
-
Evaluating
different maintenance scenarios in economic terms.
|
Date |
1997-1998 |
Institution |
TACIS:
Institutional Support to the Ministry of transport of
Ukraine (TNUK9601) |
Position |
Project Manager |
Details |
- Designed and developed databases, using different
languages, approaches and applica-tions (e.g. MS SQL,
MS Access, Visual Basic, Clipper, and Delphi)
- Trained personnel in database maintenance
|
Date |
1998 |
Institution |
BhV |
Position |
Freelance contractor |
Details |
Translated technical literature from English to
Russian. |
Date |
1997 |
Institution |
Diasoft |
Position |
Freelance contractor |
Details |
Translated technical literature from English to
Russian. |
Date |
1991-1996 |
Institution |
Firm of Consulting Engineering «INTRA Ltd», Kiev,
Ukraine |
Position |
Engineer, Computer Programmer |
Details |
-
Collaborated with biologists and physicists in a
project on the estimation of the Chernobyl nuclear
disaster ecological impact:
-
Statistical analysis of the observation data;
-
Neural
network computer model for the classification and
the predication of the impact.
-
Developed applications for MS Windows 3.1/95 and MS
Dos, using Clipper and C/C++.
-
Designed and developed customized systems software
applications. I managed a project team, including
all phases of software development cycle (design,
development, documentation, testing, customer
training, filed service, etc).
-
Implemented MS Access for bookkeeping department.
|
Date |
1988-1990 |
Institution |
Kyiv State University, Kyiv, Ukraine |
Position |
Engineer |
Details |
Elaboration of analytical and numerical methods in
the area of plasma physics. I have been involved
in the analysis, modeling and numerical simulation of
physical processes that take place in a low
temperature plasma arc. |
|
|
·
Lehigh University, PA, USA
August –
December 2002
Adjunct Professor
Course: Methods of Mathematical Physics
·
Kiev University, Kiev, Ukraine
September 1996 – January 1997
Instructor
Course: Mathematical models in economics
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|