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visits member for 11 months
seen Nov 14 '13 at 13:30

I'm PhD student of computational solid state physics. I'm mostly interested in molecular electronics. In spare time I'm interested in computer game development, computer graphics and painting.

I'm a big fan pf of aeronautics, astronautics, military technology and high performance computing.


Oct
31
comment Elliptical orbits passing 2 points
Thank you very much! all your links are very usefull. What's more - reading about the Lambert's problem I found this great python package called Keplerian Toolbox which can solve the orbital transfer problems which I wonted to develop by myself. Instead of reinventing the wheel I should reather try to understand source code of this package.
Oct
31
comment Elliptical orbits passing 2 points
OK, but I expect that this should be quite common problem of orbital mechanics, that is why I ask in physics. Nevertheless, I would try also math.stackexchange.
Oct
31
asked Elliptical orbits passing 2 points
Sep
24
awarded  Teacher
Jul
26
answered Jupiter radiation belt: where >MeV particles comes from?
Jul
17
asked Intensive radiative heat transfer in very hot gas ( >5000K, gas core nuclear reactor related )
Jul
12
revised Jupiter radiation belt: where >MeV particles comes from?
added 230 characters in body
Jul
12
answered Jupiter radiation belt: where >MeV particles comes from?
Jul
8
asked Jupiter radiation belt: where >MeV particles comes from?
Jul
3
awarded  Supporter
Jul
3
asked simple MHD simulation code for (self) education and play with
Jul
1
accepted Can solar furnace achieve higher temperature than sun surface?
Jul
1
asked Can solar furnace achieve higher temperature than sun surface?
May
12
comment Convolution kernel of poisson equation by FFT
FFT is fast - one of the fastest ways how to solve it numerically. Yes I'm solving it in regular rectangular sampling grid. I'm not sure what you mean by "full integral Fourier transform" in context of implementation of numerical solution in code ? You mean to express it in some basisset and than fourier transform the basisfunctions?
May
11
awarded  Editor
May
11
revised Convolution kernel of poisson equation by FFT
added 2 characters in body
May
11
accepted Convolution kernel of poisson equation by FFT
May
11
comment Convolution kernel of poisson equation by FFT
thank, you. Does it mean that using simply $1/k^2$ is both more precise and simpler than the more complicated solution in ch6-lec2.pdf ? Or is there any reason why to do it like in ch6-lec2.pdf ? Because I have seen the same complicated solution in several other tutorial papers.
May
10
awarded  Student
May
10
comment Convolution kernel of poisson equation by FFT
I just tried implemet both kernels in numpy, and both gives almost the same results in reciprocal space (the difference is 1e-5 for array of 512x512 ). I guess that these two kernels are used for differend boundary conditions ( periodic / absorbing )... probably