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DEMO_XY - gallery

Gallery of problems (2D electrostatic fields (X-Y)), which can be solved by DEMO_XY demonstrator.

  1. problem xy No. 1 - Two parallel plates in vacuum (mesh 200 x 200) - thumbnailTwo parallel plates in vacuum (mesh 200 x 200).
  2. problem xy No. 2 - Two parallel plates in vacuum (mesh 400 x 400) - thumbnailTwo parallel plates in vacuum (mesh 400 x 400).
  3. problem xy No. 3 - Plane diode with lateral plates at the cathode potential (mesh 201 x 201) - thumbnailPlane diode with lateral plates at the cathode potential (mesh 201 x 201).
  4. problem xy No. 4 - 'S' - formed line inside grounded casing (mesh 500 x 300) - thumbnail"S" - shaped formed electrode inside grounded casing (mesh 500 x 300).
  5. problem xy No. 5 - Electrolytic tank with 2 electrodes in grounded casing (mesh 601 x 401) - thumbnailElectrolytic tank with 2 electrodes in grounded casing (mesh 601 x 401).
  6. problem xy No. 6 - Dual-anode magnetron 'with smile' (mesh 401 x 401) - thumbnailDual-anode magnetron "with smile" (mesh 401 x 401).
  7. problem xy No. 7 - Dual-anode magnetron (such as in Paszkowski's book, page 62 or page 51 in English edition) (mesh 401 x 401) - thumbnailDual-anode magnetron (such as in Paszkowski's book, page 62 or page 51 in English edition) (mesh 401 x 401).
  8. problem xy No. 8 - Slit diaphragm (such as in Paszkowski's book) (mesh 401 x 401) - thumbnailSlit diaphragm (such as in Paszkowski's book) (mesh 401 x 401).
  9. problem xy No. 9 - Two parallel plates in vacuum - inequal length (mesh 200 x 200) - thumbnailTwo parallel plates in vacuum - inequal length (mesh 200 x 200).
  10. problem xy No. 10 - Slit diaphragm - 'weird version' (mesh 401 x 401) - thumbnailSlit diaphragm - "weird version" (mesh 401 x 401).
  11. problem xy No. 11 - Electrolytic tank with 2 electrodes (inequal diameters of electrodes) (mesh 601 x 401) - thumbnailElectrolytic tank with 2 electrodes (inequal diameters of electrodes) (mesh 601 x 401).
  12. problem xy No. 12 - Electrolytic tank with 2 electrodes (inequal diameters of electrodes, but the same potential) (mesh 601 x 401) - thumbnailElectrolytic tank with 2 electrodes (inequal diameters of electrodes, but the same potential) (mesh 601 x 401).
  13. problem xy No. 13 - Two parallel plates in vacuum (inequal length) (mesh 400 x 400) - thumbnailTwo parallel plates in vacuum (inequal length) (mesh 400 x 400).
  14. problem xy No. 14 - Electrostatic quadrupole (mesh 401 x 401) - thumbnailElectrostatic quadrupole (mesh 401 x 401).
  15. problem xy No. 15 - Cylindrical capacitor (mesh 401 x 401) - thumbnailCylindrical capacitor (mesh 401 x 401).
  16. problem xy No. 16 - Electrostatic quadrupole, defined in radial coordinates (mesh 401 x 401) - thumbnailElectrostatic quadrupole, defined in radial coordinates (mesh 401 x 401).
  17. problem xy No. 17 - Electrostatic hexapole, defined in radial coordinates (mesh 401 x 401) - thumbnailElectrostatic hexapole, defined in radial coordinates (mesh 401 x 401).
  18. problem xy No. 18 - Electrostatic 'asymmetrical' quadrupole, defined in radial coordinates (mesh 401 x 401) - thumbnailElectrostatic "asymmetrical" quadrupole, defined in radial coordinates (mesh 401 x 401).
  19. problem xy No. 19 - Electrostatic octupole, defined in radial coordinates (mesh 401 x 401) - thumbnailElectrostatic octupole, defined in radial coordinates (mesh 401 x 401).
  20. problem xy No. 20 - Electrostatic quadrupole with 'plate - shaped electrodes' (mesh 401 x 401) - thumbnailElectrostatic quadrupole with "plate - shaped electrodes" (mesh 401 x 401).
  21. problem xy No. 21 - Problem from Physics Stack Exchange, (JohnDow's question) (mesh 170 x 125) - thumbnailProblem 21 - from Physics Stack Exchange, (JohnDow's question) (mesh 170 x 125).
  22. problem xy No. 22 - Problem from Physics Stack Exchange, (JohnDow's question) (mesh 210 x 170) - thumbnailProblem 22 - from Physics Stack Exchange, (JohnDow's question) (mesh 210 x 170).
  23. problem xy No. 23 - Problem from Physics Stack Exchange, (JohnDow's question) (mesh 190 x 280) - thumbnailProblem from Physics Stack Exchange, (JohnDow's question) (mesh 190 x 280).
  24. problem xy No. 24 - Problem from Physics Stack Exchange, (JohnDow's question) (mesh 401 x 401) - thumbnailProblem from Physics Stack Exchange, (JohnDow's question) (mesh 401 x 401).
  25. problem xy No. 25 - Problem from Physics Stack Exchange, version 'with ellipse' (JohnDow's question) (mesh 401 x 401) - thumbnailProblem from Physics Stack Exchange, version "with ellipse" (JohnDow's question) (mesh 401 x 401).
  26. problem xy No. 26 - Problem from Physics Stack Exchange, version 'in casing' (JohnDow's question) (mesh 401 x 401) - thumbnailProblem from Physics Stack Exchange, version "in casing" (JohnDow's question) (mesh 401 x 401).
  27. problem xy No. 27 - Plate and cylinder - version 1 (mesh 401 x 401) - thumbnailPlate and cylinder - version 1 (mesh 401 x 401).
  28. problem xy No. 28 - Plate and cylinder - version 2 (closer) (mesh 401 x 401) - thumbnailPlate and cylinder - version 2 (closer) (mesh 401 x 401).
  29. problem xy No. 29 - Plate and cylinder in grounded casing - version 1 (plate and cylinder have the same potential) (mesh 401 x 401) - thumbnailPlate and cylinder in grounded casing - version 1 (plate and cylinder have the same potential) (mesh 401 x 401).
  30. problem xy No. 30 - Plate and cylinder in grounded casing - version 2 (plate and cylinder have different potentials) (mesh 401 x 401) - thumbnailPlate and cylinder in grounded casing - version 2 (plate and cylinder have different potentials) (mesh 401 x 401).
  31. problem xy No. 31 - 2 plates in grounded casing (version v1) (mesh 401 x 401) - thumbnail2 plates in grounded casing (version v1) (mesh 401 x 401).
  32. problem xy No. 32 - 2 plates in grounded casing (version v2) (mesh 401 x 401)- thumbnail2 plates in grounded casing (version v2) (mesh 401 x 401).
  33. problem xy No. 33 - Cylinder in grounded casing (mesh 401 x 401) - thumbnailCylinder in grounded casing (mesh 401 x 401).
  34. problem xy No. 34 - 3 cylinders in grounded casing (mesh 401 x 401) - thumbnail3 cylinders in grounded casing (mesh 401 x 401).
  35. problem xy No. 35 - Smooth 'S' shaped electrode (mesh 401 x 401) - thumbnailSmooth 'S' shaped electrode (mesh 401 x 401).
  36. problem xy No. 36 - Plane triode (version A) (mesh 401 x 401) - thumbnailPlane triode (version A) (mesh 401 x 401).
  37. problem xy No. 37 - Plane triode (version B) (mesh 401 x 401) - thumbnailPlane triode (version B) (mesh 401 x 401).
  38. problem xy No. 38 - Faraday's cup (version A) (mesh 161 x 181) - thumbnailFaraday's cup (version A) (mesh 161 x 181).
  39. problem xy No. 39 - Faraday's cup (version B) (mesh 161 x 181) - thumbnailFaraday's cup (version B) (mesh 161 x 181).
  40. problem xy No. 40 - Faraday's cup (version C) (mesh 161 x 181) - thumbnailFaraday's cup (version C) (mesh 161 x 181).
  41. problem xy No. 41 - Faraday's cup (version D) (mesh 161 x 181) - thumbnailFaraday's cup (version D) (mesh 161 x 181).
  42. problem xy No. 42 - Faraday's cup (version E) (mesh 161 x 181) - thumbnailFaraday's cup (version E) (mesh 161 x 181).
  43. problem xy No. 43 - Faraday's cup (version F) (mesh 401 x 401) - thumbnailFaraday's cup (version F) (mesh 401 x 401).
  44. problem xy No. 44 - Faraday's cup (version G) (mesh 401 x 401) - thumbnailFaraday's cup (version G) (mesh 401 x 401).
  45. problem xy No. 45 - Faraday's cup (version H) (mesh 401 x 401) - thumbnailFaraday's cup (version H) (mesh 401 x 401).
  46. problem xy No. 46 - Faraday's cup (version I) (mesh 401 x 401) - thumbnailFaraday's cup (version I) (mesh 401 x 401).
  47. problem xy No. 47 - Pseudo - dipole (version A) (mesh 401 x 401) - thumbnailPseudo - dipole (version A) (mesh 401 x 401).
  48. problem xy No. 48 - Pseudo - dipole (version B) (mesh 401 x 401) - thumbnailPseudo - dipole (version B) (mesh 401 x 401).
  49. problem xy No. 49 - Pseudo - dipole (version C) (mesh 401 x 401) - thumbnailPseudo - dipole (version C) (mesh 401 x 401).
  50. problem xy No. 50 - Pseudo - dipole (version D) (mesh 401 x 401) - thumbnailPseudo - dipole (version D) (mesh 401 x 401).

Comparison of computation time (DEMO_XY) for two environments: Laptop and Desktop.

Desktop

CPU - Intel(R) Core(TM) i5-9500F 3.0 GHz (4.4 GHz max turbo frequency)
MS Windows 10 Pro
32GB RAM
SSD disk
MSYS2, ucrt
gcc 14.2.0

Laptop (rather old, A.D. 2012)

Lenovo G580
CPU - Intel(R) Core(TM) i3-2370M 2.40 GHz
Linux Mint 21.1 Vera
Linux version 5.15.0-134-generic
6GB RAM
gcc 11.4.0

Command to measure process execution time (for problem No. 1):

Linux:

time -p ./DEMO_XY.run 1

Windows (MSYS2, UCRT64):

time -p ./DEMO_XY.exe 1

Exact values of measuments can vary +/- 0.5s.

nr problemu liczba iteracji t (Desktop) t (G80)
1 72157 16.23s 24.04s
2 292663 232.18s 389.04s
3 41553 8.65s 12.62s
4 45640 35.01s 52.62s
5 57689 68.90s 106.77s
6 74932 54.03s 84.07s
7 148235 101.54s 165.35s
8 67781 53.60s 83.88s
9 78511 16.70s 26.05s
10 73290 57.40s 90.34s
11 53368 58.78s 90.16s
12 73458 77.81s 122.28s
13 382993 304.27s 509.12s
14 27144 21.42s 29.34s
15 71149 47.78s 73.86s
16 27264 21.57s 29.46s
17 18278 16.14s 20.38s
18 25513 20.41s 27.65s
19 15111 14.18s 17.03s
20 21192 18.18s 23.81s
21 27512 3.76s 5.00s
22 64744 12.58s 19.29s
23 157145 42.22s 68.84s
24 348467 274.70s 455.67s
25 337158 265.45s 441.12s
26 65207 51.55s 80.01s
27 233792 185.48s 307.63s
28 215317 171.21s 283.92s
29 65944 52.70s 82.03s
30 42878 36.64s 54.48s
31 47613 39.95s 60.20s
32 43921 37.29s 55.58s
33 124115 95.59s 153.25s
34 91990 71.10s 113.10s
35 49417 37.90s 56.91s
36 125313 100.47s 162.97s
37 125313 100.71s 162.69s
38 7913 2.14s 2.06s
39 7913 2.14s 2.09s
40 7935 2.13s 2.10s

Conclusions


DEMO_ZR - gallery

work in progress...

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