--------------------------------------------------------------------------------------------------- python: fvm : example 3:1d momentum equation, 1d continuity equation,pipeflow,new code,version 1.0 peter.vlasschaert@gmail.com,13/02/2023 ---------------------------------------------------------------------------------------------------- new code :more easy to understand,write the output csv file (=results.csv) --------------------------------------------------------------------------------------------------- [[ 0. 2.79022978 8.37068935 14.41954044] [ 1. 2.64733188 7.94199565 16.3318395 ] [ 2. 2.52921568 7.58764703 17.84618513] [ 3. 2.43208202 7.29624607 19.04817166] [ 4. 2.35253243 7.05759728 20.00474364] [ 5. 2.28758331 6.86274992 20.76819977] [ 6. 2.23466309 6.70398926 21.37937115] [ 7. 2.19159219 6.57477657 21.87013838] [ 8. 2.15654967 6.46964902 22.26541625] [ 9. 2.12803183 6.38409549 22.58471018] [10. 2.1048079 6.31442371 22.8433295 ] [11. 2.08587687 6.25763062 23.05332849] [12. 2.07042789 6.21128366 23.22423311] [13. 2.05780558 6.17341673 23.36360096] [14. 2.04748067 6.14244202 23.47745217] [15. 2.03902562 6.11707685 23.57060132] [16. 2.03209466 6.09628398 23.64691356] [17. 2.0264078 6.07922341 23.70950295] [18. 2.0217379 6.0652137 23.76088655] [19. 2.01790034 6.05370101 23.80310494] [20. 2.0147448 6.04423439 23.83781665] [21. 2.01214869 6.03644607 23.86637282] [22. 2.01001187 6.0300356 23.88987633] [23. 2.0082524 6.02475719 23.90922894] [24. 2.00680317 6.02040952 23.92516908] [25. 2.00560916 6.01682749 23.93830211] [26. 2.0046252 6.01387561 23.94912487] [27. 2.00381418 6.01144255 23.95804548] [28. 2.0031456 6.00943681 23.96539941] [29. 2.00259437 6.00778312 23.97146261] [30. 2.00213985 6.00641955 23.97646217] [31. 2.00176503 6.00529508 23.98058504] [32. 2.00145591 6.00436773 23.98398522] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ] [ 0. 0. 0. 0. ]] [[ 0. 2.79022978 8.37068935 14.41954044] [ 1. 2.64733188 7.94199565 16.3318395 ] [ 2. 2.52921568 7.58764703 17.84618513] [ 3. 2.43208202 7.29624607 19.04817166] [ 4. 2.35253243 7.05759728 20.00474364] [ 5. 2.28758331 6.86274992 20.76819977] [ 6. 2.23466309 6.70398926 21.37937115] [ 7. 2.19159219 6.57477657 21.87013838] [ 8. 2.15654967 6.46964902 22.26541625] [ 9. 2.12803183 6.38409549 22.58471018] [10. 2.1048079 6.31442371 22.8433295 ] [11. 2.08587687 6.25763062 23.05332849] [12. 2.07042789 6.21128366 23.22423311] [13. 2.05780558 6.17341673 23.36360096] [14. 2.04748067 6.14244202 23.47745217] [15. 2.03902562 6.11707685 23.57060132] [16. 2.03209466 6.09628398 23.64691356] [17. 2.0264078 6.07922341 23.70950295] [18. 2.0217379 6.0652137 23.76088655] [19. 2.01790034 6.05370101 23.80310494] [20. 2.0147448 6.04423439 23.83781665] [21. 2.01214869 6.03644607 23.86637282] [22. 2.01001187 6.0300356 23.88987633] [23. 2.0082524 6.02475719 23.90922894] [24. 2.00680317 6.02040952 23.92516908] [25. 2.00560916 6.01682749 23.93830211] [26. 2.0046252 6.01387561 23.94912487] [27. 2.00381418 6.01144255 23.95804548] [28. 2.0031456 6.00943681 23.96539941] [29. 2.00259437 6.00778312 23.97146261] [30. 2.00213985 6.00641955 23.97646217] [31. 2.00176503 6.00529508 23.98058504] [32. 2.00145591 6.00436773 23.98398522]] Iteration uA uB p2 0 2.79023 8.37069 14.4195 1 2.64733 7.942 16.3318 2 2.52922 7.58765 17.8462 3 2.43208 7.29625 19.0482 4 2.35253 7.0576 20.0047 5 2.28758 6.86275 20.7682 6 2.23466 6.70399 21.3794 7 2.19159 6.57478 21.8701 8 2.15655 6.46965 22.2654 9 2.12803 6.3841 22.5847 10 2.10481 6.31442 22.8433 11 2.08588 6.25763 23.0533 12 2.07043 6.21128 23.2242 13 2.05781 6.17342 23.3636 14 2.04748 6.14244 23.4775 15 2.03903 6.11708 23.5706 16 2.03209 6.09628 23.6469 17 2.02641 6.07922 23.7095 18 2.02174 6.06521 23.7609 19 2.0179 6.0537 23.8031 20 2.01474 6.04423 23.8378 21 2.01215 6.03645 23.8664 22 2.01001 6.03004 23.8899 23 2.00825 6.02476 23.9092 24 2.0068 6.02041 23.9252 25 2.00561 6.01683 23.9383 26 2.00463 6.01388 23.9491 27 2.00381 6.01144 23.958 28 2.00315 6.00944 23.9654 29 2.00259 6.00778 23.9715 30 2.00214 6.00642 23.9765 31 2.00177 6.0053 23.9806 32 2.00146 6.00437 23.984