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توضیحات

Free boundary Grad-Shafranov solver for tokamak plasma equilibria

ویژگی	مقدار
سیستم عامل	OS Independent
نام فایل	FreeGS-0.6.1
نام	FreeGS
نسخه کتابخانه	0.6.1
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Ben Dudson
ایمیل نویسنده	benjamin.dudson@york.ac.uk
آدرس صفحه اصلی	https://github.com/bendudson/freegs
آدرس اینترنتی	https://pypi.org/project/FreeGS/
مجوز	LGPL

FreeGS: Free boundary Grad-Shafranov solver =========================================== [![License](https://img.shields.io/badge/license-GPL-blue.svg)](https://img.shields.io/badge/license-GPL-blue.svg) [![py3comp](https://img.shields.io/badge/py3-compatible-brightgreen.svg)](https://img.shields.io/badge/py3-compatible-brightgreen.svg) [![Build Status](https://travis-ci.org/bendudson/freegs.svg?branch=master)](https://travis-ci.org/bendudson/freegs) This Python module calculates plasma equilibria for tokamak fusion experiments, by solving the Grad-Shafranov equation with free boundaries. Given a set of coils, plasma profiles and shape, FreeGS finds the currents in the coils which produce a steady-state solution in force balance. **Note** This is a work in progress, and probably contains bugs. There is a feature wishlist in issues, suggestions and contributions welcome! Installing ---------- FreeGS is available on PyPI $ pip install --user freegs or clone/download this repository and run setup: $ git clone https://github.com/bendudson/freegs.git $ cd freegs $ python setup.py install --user Documentation ------------- The manual is in the `docs` subdirectory, and [hosted here on readthedocs](http://freegs.readthedocs.io/en/latest/). Testing ------- Unit tests use [pytest](https://docs.pytest.org/en/latest/) so after installing, run with: $ pytest The tests are in the `src/` subdirectory. A convergence test is [described in the manual](https://freegs.readthedocs.io/en/latest/tests.html#convergence-test). To run: $ python test-convergence.py Examples -------- The Jupyter notebooks contain examples wuth additional notes * MAST-example.ipynb There are also some Python scripts to run short tests and examples $ python 01-freeboundary.py This solves a free boundary problem, specifying the desired location of two X-points. Writes the equilibrium to a G-EQDSK file "lsn.geqdsk" $ python 02-read-geqdsk.py Reads in the file "lsn.geqdsk", inferring the coil currents from the plasma boundary and profiles in the G-EQDSK file. $ python 03-mast.py Calculates a double-null (CDND) equilibrium for MAST from scratch. Writes solution to G-EQDSK file "mast.geqdsk" $ python 04-read-mast-geqdsk.py Reads the file "mast.geqdsk", inferring the coil currents. $ python 05-fixed-boundary.py This example solves a fixed boundary problem, in which the square edges of the domain are fixed. The plasma pressure on axis and plasma current are fixed. $ python 06-xpoints.py This demonstrates the coil current control code, finding X-points, and marking core region These routines are used inside the free boundary solver Files ----- The "freegs" module consists of the following files: * **boundary.py** - Operators for applying boundary conditions to plasma psi * **control.py** - Routines for controlling coil currents based on constraints * **critical.py** - Finds critical points (O- and X-points) * **equilibrium.py** - Represents the plasma equilibrium state * **gradshafranov.py** - Greens functions and operators for the Grad-Shafranov equation * **jtor.py** - Routines for calculating toroidal current density (profiles) * **machine.py** - Represents the coils and power supply circuits * **multigrid.py** - The multigrid solver for the linear elliptic operator * **picard.py** - Nonlinear solver, iterating the profiles and constraints * **plotting.py** - Plotting routines using matplotlib License ------- Copyright 2016-2021 Ben Dudson, University of York, and other contributors. Email: benjamin.dudson@york.ac.uk This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. References ---------- * YoungMu Jeon, [Development of a free boundary Tokamak Equlibrium Solver](http://link.springer.com/article/10.3938/jkps.67.843) [arXiv:1503.03135](https://arxiv.org/abs/1503.03135) * S.Jardin "Computational Methods in Plasma Physics" CRC Press Versions -------- 0.6.1 11th February 2021 - Fixes for HDF5 reading and writing - Fix Numpy deprecations - Catch errors in optimisation measures, making that more robust - Fix core mask in geqdsk file reading - Flake8 fixes - Move to Github actions 0.6.0 29th January 2021 - Improve separatrix finding (Pablo Rodriguez-Fernandez) - Update MAST-U machine description (James Harrison) - Updated documentation - Add tests for critical point finding - Black format all library code - Fix wall intersection calculation in optimisation - Fix factor of pi in effectiveElongation (Chris Winnard) - Miscellaneous fixes and tidying (Chris Winnard) - Fix psi_bndry test in critical.core_mask - Fix comments in Greens functions (James Morris) 0.5.0 25th March 2020 - More tests, thanks to @ZedThree. - Added more flexible coil types, thanks to Chris Marsden. Includes support for shaped coils, multi-strand coils, and up-down mirrored coils. - Basic support for reading and writing AEQDSK files - Added h5py to requirements, fixes for latest NumPy 0.4.0 10th November 2019 - Add optimisation with Differential Evolution - More unit testing, documentation 0.3.0 28th July 2019 - Add 4th-order solver for potential - Add convergence test 0.2.0 12th March 2019 - Add field line tracer, `freegs.fieldtracer` - Add Equilibrium.Btor toroidal field calculation - Add Equilibrium.plasmaVolume - Fix rlim, zlim saved into GEQDSK files

نیازمندی

مقدار	نام
>=1.8	numpy
>=0.14	scipy
>=1.3	matplotlib
>=2.10.0	h5py

نحوه نصب

نصب پکیج whl FreeGS-0.6.1:

pip install FreeGS-0.6.1.whl

نصب پکیج tar.gz FreeGS-0.6.1:

pip install FreeGS-0.6.1.tar.gz