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*TDP
Data format:
One line with 4 values
TBEGIN TEND NBFILE ZONELENGHT
Status :
Optional
Purpose :
To automatically generate results files at the TDP
Restriction :
NBFILE must be greater or equal than 2.
TBEGIN must lie between TINI and TFIN (parameters of the *DYNAMIC keyword). If TEND is greater than TFIN, no warning will appear but the total number of created files will be less than NBFILE
Details :
| Parameter | Description |
|---|---|
| TBEGIN | first time of the time range for TDP files |
| TEND | last time of the time range for TDP files |
| NBFILE | number of file which will be generated. |
| ZONELENGHT | length of the zone where 10 control points will be distributed around the static TDP position. |
Distribution of the control point on the riser
Note
Control points will be distributed according to the static TDP position. During quasi-static or dynamic calculation, its curvilinear abscissa are fixed along the riser.
For each riser i (where i is the group number of the riser):
During quasi-static calculation, a file named qs_i.dat is created. It contains data evolution at the TDP (writing for TECPLOT software). For each line parameters are:
Step : number of the quasi-static step X_TDP : X Position of the TDP Y_TDP : Y Position of the TDP Z_TDP : Z Position of the TDP Abscurv : Curvilinear abscissa of the TDP Te : Effective tension at the TDP Ttw : True tension at the TDP Vit : Velocity of the riser at the TDP C : Wave velocity at the TDP defined by \(\sqrt{\frac{Te}{(m + m_a)}}\), where m is the mass of the riser an ma is the added mass. Cb : Curvature at the TDP
- At the end of the quasi-static calculation, a file named tdp_area.dat is created. It contains the summary of values relating to the TDP, control points and max of curvature.
During dynamic calculation:
A file named TDP_i.dat is created. It contains the time evolution of the same parameters as qs_i.dat (in TECPLOT format).
A file named curv_i.dat is created. It contains the time evolution of the location (and its value) of the maximum of curvature of the riser (in TECPLOT format).
10 files named TDP_i-[1;10].dat are created. Each file contains the time evolution of the same parameters as qs_i.dat but relating to the control points (in TECPLOT format).
NBFILE files named TDPi_kkk.datare created. Each file contains mesh of the riser in TECPLOT format.
