Accession Number:

ADA495954

Title:

Potential Flow Forces and Moments from Selected Ship Flow Codes in a Set of Numerical Experiments. Appendix R - Minimum and Maximum Plots for 0-DOF Motion of Model 5514 in Waves

Descriptive Note:

Corporate Author:

NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

Personal Author(s):

Report Date:

2008-05-01

Pagination or Media Count:

1109.0

Abstract:

This appendix contains plots and tables related to the minimum and maximum value of each variable versus wave steepness for the 0-DOF prescribed motions of Model 5514 in task 2. The plots are found in Figures R-1 through R-226. For each variable, speed, and heading there is one plot that depicts the results from all the codes. If f stands for a time-dependent variable, then the quantities plotted are the minimum and maximum of f f-f over Hlambda, where f is the mean. Only filtered values f are used since filtered values lessen the impact of spikes that probably originate in numerical filtering schemes in the codes. Linear variation as a function of the amplitude appears as a horizontal line. Quadratic variation appears as a straight line with a nonzero slope. Tables R-1 through R-1808 in this appendix correspond to the plots. Following each plot is one table for each of the eight codes for which data were received. The tables give information about the mean, the minimum and maximum of the unfiltered variable, the minimum and maximum of the filtered variable, and the starred function depicted in the figure. For the corresponding time history plots, the reader is referred to Appendix H.

Descriptors:

• *SHIP MOTION
• *POTENTIAL FLOW
• *DIFFRACTION ANALYSIS
• *HYDROMECHANICS
• *DATA PROCESSING
• NUMERICAL METHODS AND PROCEDURES
• SHIP HULLS
• PERIODIC VARIATIONS
• TABLES(DATA)
• MOMENTS
• GRAPHS
• WATER WAVES
• SIMULATION
• CODING

Subject Categories:

• Numerical Mathematics
• Computer Programming and Software
• Marine Engineering
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE