1. Control information

1.1. Data group identifier, one input line

VIVAna CONTrol INFOrmation chvers

  • CHVERS: character(8): VIVANA input file version, e.g. 4.0

Identification of the analysis must be given in three lines of text. This text will be printed to the vivana.res file.

1.2. Heading, three input lines

HEADn

  • HEADn: character, default: CH: Line n of heading text

Always 3 card images which may all be blank.

1.3. Identification of system and environment, one input line

IDRIS IDSTAT IDENV TEMP IRSTYP

  • IDRIS: character(6): Riser identifier, corresponding to the model established by RIFLEX module INPMOD and used in STAMOD. See Input to INPMOD, Data Group B, Riser type specification in RIFLEX User Guide.

  • IDSTAT: character(6): Static condition identifier, corresponding to the static analysis carried out by RIFLEX module STAMOD. See Input to STAMOD, Data Group A, Principal run parameters in RIFLEX User Guide.

  • IDENV: character(6): Environment identifier, corresponding to the environment established by RIFLEX INPMOD and used in STAMOD. See Input to INPMOD, Data Group D: Environmental Data in RIFLEX User Guide.

  • TEMP: real, default: 4: Water temperature \([\mathrm {deg}]\)

  • IRSTYP: integer, default: 1: Option for type of VIV loads to be applied

    • = 1: Cross-flow VIV loads are applied

    • = 2: In-line VIV loads are applied

    • = 3: Combined cross-flow and in-line VIV loads are applied

1.4. Specification of work array dimension

It is possible for the user to decide how much computer memory should be allocated to a VIVANA analysis.

1.5. Data group identifier, one input line

WORK ARRAy DIMEnsion

1.6. Number of words allocated for VIVANA analysis, one input line

NWIWA

  • NWIWA: integer, default: 9000000: Number of words allocated for VIVANA analysis