pdf: http://www.ipt.ntnu.no/~stanko/files/Courses/POFE_UEM/2018/Notes/20181029.pdf
video: http://www.ipt.ntnu.no/~stanko/files/Courses/POFE_UEM/2018/Videos/20181029.mp4
files: http://www.ipt.ntnu.no/~stanko/files/Courses/POFE_UEM/2018/Exercises/Ex_1.pdf
http://www.ipt.ntnu.no/~stanko/files/Courses/POFE_UEM/2018/Exercises/Ex_2_q_gas_along_tubing.xls