| Home | Instructions |

Instructions to participants:


  1. Test procedures

  2. Simulation Procedures

  3. Uncertainty Assessment

  4. Format of Model test results

  5. Test Cases and Format of Simulation Results, System-based methods

  6. Questionnaire, System-based methods

  7. Test Cases and Format of Simulation Results, CFD-based methods

  8. Questionnaire, CFD-based methods

  9. Format of Posters

  10. Format of Papers

  11. Coordinate system

  12. FTP-server

It is possible to participate in the workshop by performing:


A) model tests with one of the hulls

B) simulations using a system-based method, or

C) simulations using a CFD-based method


All participating groups should follow the instructions given in the section below defining the content and format of the submitted data. Groups performing simulations are required to fill out a questionnaire to document the used method. At the workshop the participants are expected to present a poster documenting their method and a paper that will be published in the workshop proceedings.


1. Test Procedures

The model tests should generally be carried out according to the Recommended Procedures given by the 23rd ITTC Manoeuvring Committee, i.e.:

captive tests (PMM + CMT): Captive Model Test Procedure, No. 7.5-02-06-02, 2002
free model tests: Free-Sailing Model Test Procedure, No. 7.5-02-06-01, 2002

2. Simulation Procedures

With respect to the manoeuvring simulation methods, whether based on experimental or numerical data, it is recommended that they are validated based on the following ITTC Recommended Procedure:

“Validation of Manoeuvring Simulation Models”, No. 7.5-02-06-03, 2002.

3. Uncertainty Assessment

Uncertainty assessment (i.e. verification) is required for all participants, both for the experimental methods and for the numerical methods. 

With respect to the numerical methods it is recommended that the procedures proposed by the 22nd ITTC Resistance Committee be used, however, estimates from alternate methods, including extrapolation of uncertainty estimates from benchmark applications, are acceptable. The 22nd ITTC adopted the procedures on an interim basis and included them in the following sections of the Quality Manual:

QM Section 4.9-04-01-01, "Uncertainty Assessment in CFD Methodology," Download PDF file [125KB]
QM Section 4.9-04-01-02, "Guidelines for RANS Codes," Download PDF file [26KB]
QM Section 4.9-04-02-01, "Examples for Resistance and Flow," Download PDF file [1135KB]
Note that the procedures and methodology are based upon those presented in Stern et al. (1999).

With respect to the captive tests (mainly PMM) it is recommended to follow the procedure described in Simonsen, C. D., 2004.

4. Format of Model Test Results

  1. A full set of results corresponding to the relevant test program described on this site must be supplied.

  2. The results must be sent as soon as possible after termination of the tests.

  3. All files should be packed in a single zip-file.

  4. Files should be in ASCII-format.

  5. All data in model scale.

  6. All data in SI-units.

  7. For static tests mean values should be given, while for dynamic tests incl. free model tests full time series as well as Fourier coefficients must be supplied.

  8. For captive tests the following parameters should be included:
    Time, total forces (X, Y, N), position (x, y, psi), velocities (u, v, r), accelerations (udot, vdot, rdot).

    For static tests mean values should be given. For dynamic tests data should be delivered in the form of time series of hydrodynamic forces for one complete PMM cycle after filtering and averaging over the measurement period.

  9. For free tests the following parameters should be included:
    Time, position (x, y, psi), velocities (u, v ,r), roll angle, rudder angle, propeller revolutions, propeller thrust/torque (optional), rudder forces/moment (optional). A full time series of each channel must be supplied.

  10. A separate file shall describe the model and the test conditions including:

  1.  model scale

  2. model weight

  3. model moment of inertia izz

  4. any deviations in model geometry from the data given on this site

  5. any deviations in test conditions from the data given on this site

  6. applied method of turbulence stimulation

  7. applied method of frictional force correction

  8. applied strategy for adjustment of propeller revolutions

  9.  water temperature

  10. logging frequency

5. Format of Simulation results, System-based methods

6. Questionnaire, System-based methods

7. Format of Simulation results, CFD-based methods

8. Questionnaire, CFD-based methods

9. Format of Posters

Posters should be submitted in pdf-format on the FTP-server. The printed size will be 70 x 100 cm. Additional guidelines can be found here. An example of a poster layout is given here.

10. Format of Papers

Papers should be submitted in pdf-format on the FTP-server. A template in Microsoft Word which describes the format is given here.

11. Coordinate system
The coordinate system and sign convention to be used throughout the workshop is the one normally used for manoeuvring as described in ITTC "Symbols and Terminology List", Version 2002, i.e. a right-handed, horizontal, body-fixed coordinate system with x positive forward of midships, y positive starboard of centre line and z positive down from waterline.

12. FTP server
Model test data can be downloaded from the FORCE Technology FTP-server (ftp.force.dk). The captive model test data for input to the simulation methods is stored in the folder 'simman2008-open', separately from the free model test data in 'simman2008-blind', which will be kept blind until the workshop.
Note: after the workshop all the free model test data has been moved to the folder 'simman2008-open'.
Simulation results as well as papers and posters should be submitted by uploading the files in the prescribed format to the FTP-server under 'simman2008-submit'.

The structure of the folders can be seen here

Login to the FTP server:

To obtain a username and a password, please send an e-mail to: secretary@simman2008.dk

Up/download instructions:
1. Open an Internet Explorer.
2. Go to ftp://ftp.force.dk/pub/.
3. Select ‘File’/’Login as…’ and enter username and password.
4. Go to the folder ‘simman2008-open’/‘simman2008-submit’ and find the relevant subfolder.
5. Up/download files by using ‘copy’/’paste’ commands.



| Home | Latest News | Minutes of Meetings | Announcement | Instructions to participants | Registration | VenueKVLCC1 | KVLCC2 | KCS | 5415 |
Please send comments to: