General Frequency Domain Tests

2jonswap:

This test shows what gamma values for 2JONSWAP spectrum MOSES calculates. For a 2JONSWAP spectrum an input peakedness factor is is automatically calculated by MOSES based on DNV guidlens.

BGNREF:

This test illustrates the difference in frequency domain results when using a crude Three Dimensional Diffraction mesh, and then refining it automatically. See TRIBOX for a similar test.

BOXREF:

This test shows how frequency domain results differ when refining a Three Dimensional Diffraction mesh. The mesh panel size is first defined by minimum size, then as a fraction of wave length.

CYL:

This is a Three Dimensional Diffraction solution of a "deeply submerged" tube.

DIFBOM:

This is a Three Dimensional Diffraction test of a square vessel defined with an input mesh.

DIFBOX:

This test computes the wave drift force on a 90m x 90m box with a draft of 40m. These results can be compared with those reported in a paper by Faltinsen and Michelsen, "MOTIONS OF LARGE STRUCTURES IN WAVES AT ZERO FROUDE NUMBERS", Det Norske Veritas, Publication No 90 - Sept. 1975.

DIFBOX_FAR:

This test computes the wave drift force using the far field method of Newman (1967) on a 90m x 90m box with a draft of 40m. These results can be compared with those reported in a paper by Faltinsen and Michelsen, "MOTIONS OF LARGE STRUCTURES IN WAVES AT ZERO FROUDE NUMBERS", Det Norske Veritas, Publication No 90 - Sept. 1975.

DIFFRACT:

This is an example of a box being analyzed with three dimensional diffraction. It demonstrates how one inputs a user defined mesh.

EXPPRS:

This is a test of "exporting" hydrodynamic pressures on a hull.

EXPTOT:

This is a test of "exporting" a total hydrodynamic database.

F2TIME:

This is a test generating a process from a set of RAOs.

F_TIDE:

This is a test of of computing hydrodynamics with tide.

FRQMOR:

This is a test of a frequency domain analysis of a tubular structure.

I_SPECT:

This is a test of using an input spectrum.

IMPTOT:

This is a test of "importing" a total hydrodynamic database.

IMPPRS:

This is a test of "importing" a hydrodynamic pressures on a hull.

JON2:

This is a test of the 2JONSWAP spectrum.

LINSPR:

This is a test of the spectral linearization multiplier.

MAX_SIZ:

This test checks the ability of the program to solve a large number of headings and frequencies.

MAT_TEST:

This test checks MATRICES command to show that it does, in fact, add the viscous damping.

MOVTST:

This test checks the ability of the program to compute frequency domain results before and after a body has been rotated.

MSHPLT:

This test generates a diffraction mesh using the optional mesh control parameters. The undocumented -time option is used to report the CPU time it takes to read in the model.

MSPBAS:

This is a Morison's equation test on the Saratoga semisubmersible. The three MSP* files are performed on the same model of the Saratoga.

MSPLIN:

This is a test of the linearization of the RAO equations based on a defined wave spectrum.

MSPNLI:

This is a test of the spectral frequency response computations.

NOYAW:

This test provides frequency domain results for a vessel that has not been yawed, for comparison with the YAW test.

OB:

This test checks the use of an "obstacle".

RESP:

This test produces the frequency response at a user input point.

SFBOX:

This test performs a diffraction analysis on a box. The drift data are reported twice. The first time the drift data is computed using g_press and the second time the drift data includes the effect of the response operators.

SHALLOW:

This test checks Three Dimensional Diffraction in shallow water.

SPEED:

This test checks the computing of RAO with forward speed.

SPREAD:

This is a test of wave spreading of a sea spectrum.

STRIP:

This is a sample of a barge being analyzed in the frequency domain using strip theory.

TRIBOX:

This is test a similar to BGNREF, except the hull shape is triangular.

VDTEST:

This is a test of the undocumented Tanaka load group commands.

YAW:

This tests the ability of the program to properly compute frequency domain results for a body which has been yawed prior to the hydrodynamic computation.

YAWH:

This tests the ability of the program to properly compute frequency domain results for hulls which have been rotated.