Skip to main content
Working from scratch, following simplicity

Storm_sewer_0_9_3 released!

Update of my software to design a storm sewer system, in this version it is possible a more realistic schematization of the system and is fully compatible with Linux. I have added a further degree of relationship, reducing to zero the subdivision and the joining part by part of the system. Besides it produces a backup copy of the input data, so it is possible to change and analyze again the sewer.

The zip file contains:

  • storm_sewer.bas the source code (written in a QBasic compatible language and compiled using FreeBASIC);
  • executables (tested in Windows XP and Ubuntu 10.10);
  • circular_duct.dat (the dimensionless table for this kind of ducts) and input_system.dat (geometrical and hydrological data of the sawer system);
  • example files used in this article.

You can download it from here: Storm_sewer_0_9_3.zip. (2012/10/10) I begin the conversion of Storm Sewer into a web application, to see how it will work and the progress of this project, go here: Storm sewer webapp: concept.

I have fixed a big limitation, now it is possible to design using a unique input file. The system can have more external lines, all arranged along a main line that brings the water to the final gatherer. Here is an example of a system compatible with my software:

Schematic example of a storm sewer that my program can design

As you can see, it is possible to choice among three type of line: external, internal or main. External line is always the first one, the others can be internal if they are in a ramification or main if the are along principal part of the system. The numeration follows the order of inserting in input_system.dat, the idea is represent the real flow from upstream to downstream. If the ramification is more complex, you can use the trick explained in the previous article.

A new feature is the fully compatibility with Linux. I tested it with Ubuntu 10.10 and the only missing dependency is the ncurses-dev package. Obviously you have to install FreeBASIC too, but the two items are present in the official repositories.

The last update is the automatic saving of the input_system.dat with the suffix from the first node to the last one (like the final report). In this way you can backup your systems and reuse or elaborate/change them again without lose your work: just rename it to input_system.dat!

Example

I will use the same data of the Design a storm sewer fixing speed article, here they are:

Schematic system used in this article

Line Length Surface ϕ
- m ha -
AC 50 0.29 0.4
BB1 25 0.20 0.5
B1C 45 0.30 0.5
CC1 25 0.20 0.6
C1D 60 0.45 0.6

1 ha = 104 m2

Firstly adapt input_system.dat in this manner:

"|system data|"
"|value on the left, description on the right|"
75	"|KS - Gauckler-Strickler in m^(1/3)/s|"
51.40	"|a of IFD curve [mm hour^-n|"
0.375	"|n of IFD curve [-]|"
1	"|1 if n must multiplicated by 4/3 or 0|"
40	"|VO in m^3/ha|"
0.005	"|tolerance|"
5	"|number of lines to design|"
"|description of single line|"
"A_"	"|label upstream in inverted commas|"
2900	"|surface in m^2|"
50	"|length in m|"
0.4	"|degree of permeability|"
0	"|if line is external [0] internal [1] or main [2]|"
"B_"	"|label upstream in inverted commas|"
2000	"|surface in m^2|"
25	"|length in m|"
0.5	"|degree of permeability|"
0	"|if line is external [0] internal [1] or main [2]|"
"B1"	"|label upstream in inverted commas|"
3000	"|surface in m^2|"
45	"|length in m|"
0.50	"|degree of permeability|"
1	"|if line is external [0] internal [1] or main [2]|"
"C_"	"|label upstream in inverted commas|"
2000	"|surface in m^2|"
25	"|length in m|"
0.60	"|degree of permeability|"
2	"|if line is external [0] internal [1] or main [2]|"
"C1"	"|label upstream in inverted commas|"
4500	"|surface in m^2|"
60	"|length in m|"
0.60	"|degree of permeability|"
2	"|if line is external [0] internal [1] or main [2]|"

Launch the executable: storm_sewer.exe (in Windows, better using Command Prompt from the directory with my software) or storm_sewer (in Linux using a terminal window from the directory with my software), or you can compile the source code (with the "fbc storm_sewer.bas" command). The steps on screen are the same as the choice of the reference variable (speed in 1 m/s) of the previous article.

The output report line_from_A__to_C1.txt is similar to the original lecture written by prof. Salandin: Calcolo_Condotte.pdf that I used to outline my storm sewer. Here there is the summary:

___________________________________________________________________________
                              SUMMARY
 
Line from   L           ST      D      y/D      v      Q       i      TAU
    -       m          m^2      m       -      m/s    l/s      -     N/m^2
    A_     50.00     2900.00  0.300    0.45   1.000  30.62  0.00617  4.233
    B_     25.00     2000.00  0.300    0.48   1.000  33.79  0.00582  4.172
    B1     45.00     5000.00  0.400    0.59   1.000  76.87  0.00337  3.639
    C_     25.00     9900.00  0.500    0.69   1.000 143.96  0.00228  3.302
    C1     60.00    14400.00  0.600    0.71   1.000 213.88  0.00177  3.097

Add new comment

The content of this field is kept private and will not be shown publicly.

Plain text

  • No HTML tags allowed.
  • Web page addresses and email addresses turn into links automatically.
  • Lines and paragraphs break automatically.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

Add new comment

The content of this field is kept private and will not be shown publicly.

Plain text

  • No HTML tags allowed.
  • Web page addresses and email addresses turn into links automatically.
  • Lines and paragraphs break automatically.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Sponsored Links
Pubblicità

Nicola Rainiero

A civil geotechnical engineer with the ambition to facilitate own work with free software for a knowledge and collective sharing. Also, I deal with green energy and in particular shallow geothermal energy. I have always been involved in web design and 3D modelling.