USER MANUAL SWAN Cycle III version 40.72A

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24 Chapter 4 In block (g) In block (h) In block (i) In block (j) : ISOLINE after RAY (ISOLINE and RAY can be repeated independently) : no prescribed sequence in block : no prescribed sequence in block : HOTFILE immediately after COMPUTE, STOP after COMPUTE It must be noted that a repetition of a command may override an earlier occurrence of that command. Many commands provide the user with the opportunity to assign values to coefficients of SWAN (e.g. the bottom friction coefficient). If the user does not use such option SWAN will use a default value. Some commands cannot be used in 1D-mode (see individual command descriptions below). 4.3 Command syntax and input / output limitations The command syntax is given in Appendix B. Limitations: • The maximum length of the input lines is 120 characters. • The maximum length of the file names is 36 characters. • The maximum length of the plot titles is 36 characters. • The maximum number of file names is 99. This can be extended (edit the file swaninit to change highest unit number of 99 to a higher number). 4.4 Start-up PROJect ’name’ ’nr’ ’title1’ ’title2’ ’title3’ With this required command the user defines a number of strings to identify the SWAN run (project name e.g., an engineering project) in the print and plot file.
Description of commands 25 ’name’ ’nr’ ’title1’ ’title2’ ’title3’ is the name of the project, at most 16 characters long. Default: blanks. is the run identification (to be provided as a character string; e.g. the run number) to distinguish this run among other runs for the same project; it is at most 4 characters long. It is the only required information in this command. is a string of at most 72 characters provided by the user to appear in the output of the program for the user’s convenience. Default: blanks. same as ’title1’. same as ’title1’. SET [level] [nor] [depmin] [maxmes] [maxerr] [grav] [rho] & | NAUTical | [inrhog] [hsrerr] < > [pwtail] [froudmax] [printf] [prtest] | -> CARTesian | With this optional command the user assigns values to various general parameters. [level] [nor] [depmin] [maxmes] [maxerr] increase in water level that is constant in space and time can be given with this option, [level] is the value of this increase (in m). For a variable water level reference is made to the commands INPGRID and READINP. Default: [level]=0. direction of North with respect to the x−axis (measured counterclockwise); default [nor]= 90 o , i.e. x−axis of the problem coordinate system points East. When spherical coordinates are used (see command COORD) the value of [nor] may not be modified. threshold depth (in m). In the computation any positive depth smaller than [depmin] is made equal to [depmin]. Default: [depmin] = 0.05. maximum number of error messages (not necessarily the number of errors!) during the computation at which the computation is terminated. During the computational process messages are written to the print file. Default: [maxmes] = 200. during pre-processing SWAN checks input data. Depending on the severity of the errors encountered during this pre-processing, SWAN does not start computations. The user can influence the error level above which SWAN will not start computations (at the level indicated the computations will continue). The error level [maxerr] is coded as follows:
Page 1: SWAN USER MANUAL SWAN Cycle III ver
Page 5 and 6: Contents 1 Introduction 1 2 General
Page 7 and 8: TABLE . . . . . . . . . . . . . . .
Page 9 and 10: Chapter 1 Introduction The informat
Page 11 and 12: Chapter 2 General definitions and r
Page 13 and 14: General definitions and remarks 5 r
Page 15 and 16: General definitions and remarks 7 I
Page 17 and 18: which SWAN performs the computation
Page 19 and 20: General definitions and remarks 11
Page 27 and 28: Chapter 3 Input and output files 3.
Page 29 and 30: Chapter 4 Description of commands 4
Page 31: (h) Commands to write or plot outpu
Page 35 and 36: Description of commands 27 Default:
Page 37 and 38: Description of commands 29 mesh. Th
Page 39 and 40: ⎛ ∆f = ⎝−1 + Description of
Page 41 and 42: Description of commands 33 • Easy
Page 43 and 44: Description of commands 35 grids ca
Page 45 and 46: Description of commands 37 y ′
Page 47 and 48: Description of commands 39 [fac]
Page 49 and 50: Description of commands 41 ’(10X,
Page 51 and 52: Description of commands 43 | | East
Page 53 and 54: Description of commands 45 CONSTANT
Page 55 and 56: Description of commands 47 points o
Page 57 and 58: Description of commands 49 CRAY WKS
Page 59 and 60: Description of commands 51 This com
Page 61 and 62: Description of commands 53 | JANSse
Page 63 and 64: Description of commands 55 [Csh3] c
Page 65 and 66: Description of commands 57 [ursell]
Page 67 and 68: Description of commands 59 [slope]
Page 69 and 70: Description of commands 61 [cgmod]
Page 71 and 72: Description of commands 63 < > [lim
Page 73 and 74: Description of commands 65 SIGIMPL
Page 75 and 76: Description of commands 67 ’sname
Page 77 and 78: Description of commands 69 (see bel
Page 79 and 80: Description of commands 71 [alpn] d
Page 81 and 82: Description of commands 73 ‘long
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| HSign | | | | HSWEll | | | | DIR
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Description of commands 77 | WLENgt
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Description of commands 79 QP DEPTH
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Description of commands 81 [tbegblk
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Description of commands 83 OUTput [
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Description of commands 85 If SWAN
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Description of commands 87 ACCUR MX
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Appendix A Definitions of variables
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Definitions of variables 91 RPER co
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Definitions of variables 93 WLEN Th
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Appendix B Command syntax B.1 Comma
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Repetitions of keywords and/or othe
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Required data and optional data Com
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Appendix C File swan.edt Below the
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File swan.edt 103 ! | -> DEFault !
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File swan.edt 105 ! FRAME ’sname
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Appendix D Spectrum files, input an
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0.3892E-03 192.0 15.2 0.8007E-03 24
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Spectrum files, input and output 11
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Spectrum files, input and output 11
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Bibliography [1] SWAN - Implementat
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117 longitude, 8, 27, 49, 50, 85, 1
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