New & Noteworthy

1. General information

  • Version no. 4.2.0

  • Date 2022-02-25

2. New Help system

  • A new help system is developed

  • The old context help has been removed and replaced by links into the main help.

  • The new help system will open in an external web browser

sima420 helpdoc fig1
Figure 1. Help documentation

3. SIMA json export/import

  • The JSON file format is now supported as a way to import and export models.

  • Select one or several model objects to export. The exported json can be edited in an external text editor and can be used as a template for scripting or directly imported as it is.

When importing it is necessary to select the model that will contain the imported objects in the navigator (if the imported object is not a task or a folder).
sima420 json fig1
Figure 2. json export and import

4. SIMA python library

Using the newly developed open source simapy-library it is now possible to create models using code run from outside of SIMA.

  • Install simapy: pip install simapy

  • The integration is maintained through the new json file import/export functionality:

  • File→import→json model import.

  • The library can also be used to run sima from the command line

link to GitHub: https://github.com/SINTEF/simapy

sima420 python fig1
Figure 3. Python library

5. SIMA RuntimeEngine - SRE

  • SIMA Runtime Engine (SRE) is now part of the official release of SIMA. This is a batch oriented version of SIMA without UI.

  • Using SRE it is possible to automate several tasks, such as running a workflow, importing/exporting files, etc.

  • Run sre.exe –help all to get an overview over all available commands

  • BothLinux and Windows versions are available.

sima420 sre fig1
Figure 4. SIMA Runtime - SRE

6. Wind turbines

  • Fluctuating 3-comp wind: Increased efficiency with IEC Wind format (DTUMann).

  • When using parametric wind spectra in coupled analysis:

    • Windvelocity time series now reported at hub position

    • Windvelocity or turbine blades now computed at blade element vertical position.

  • External WT control system may now also include nacelle yaw control.

  • Warning if WT rotor is not within a specified turbulent wind field

  • Eigenvalue analys is can beperformed for cross sections with MacCamy & Fuchs wave loads

sima420 dtumann fig1
Figure 5. DTUMann

7. Aquaculture

  • Hydrodynamic loads on partly submerged crosssections in regular and irregular waves

  • Hydrodynamic loads on net structures in regular and irregular waves

sima420 aqua fig4
Figure 6. Example input data in SIMA
sima420 aqua fig3
Figure 7. Aquaculture

8. SIMA Post Processor Examples

  • Examples of the operations in the Post processor is included in the SIMA Examples

sima420 postproc fig1
Figure 8. Post-processing examples

9. SIMO

Description JIRA reference

Option to calculate retardation function from added mass and damping added to plot editor

SIMA-9812

Fluctuating 3-comp wind: IncreasedefficiencywithIECWind format (DTUMann).

SRV-1688

When using psssarametric wind spectra in coupled analysis:

  • Wind velocity time series now reportedathub position

  • Wind velocity for turbine blades now computedat blade element vertical position

SRV-1749

The Constant Tension Control in Simple Wire Coupling now has input to specification time and deactivation time.

SRV-1685

10. Riflex

Description JIRA reference

External WT control system may now also include nacelle yaw control

SRV-1768

Hydrodynamic loads on partly submerged cross sections in regular andirregular waves

SRV-1706

Hydrodynamic loads on net structures in regular and irregular waves

SRV-1755

Fluctuating3-compwind:IncreasedefficiencywithIECWindformat (DTUMann)

SRV-1688

Options for controlling MatrixPlotstorage added to static calculation parameters in RIFLEX

SIMA-9552

Option for calculation of arclength for result presentation

SRV-1417

Storage of dynamic results for seafloor and soil contact elements is now optional

SRV-1713

Eigenvalue analysis can be performed for cross sections with MacCamy& Fuchs wave loads

SRV-1729

Nondimensional added mass and drag coefficients can be given for MacCamy& Fuchs loads

SRV-1728

Time domain VIV load for stress joints and thin-walled cross-sections (restricted)

SRV-1787/58

Warning if wind turbine rotor is not within a specified turbulent wind field

SRV-1626

Incorrect pointer caused error in eigen value analysis with multiple bodies (coupled analysis). This is corrected.

SRV-1820

Option to calculate retardation function from added mass and damping added to plot editor

SIMA-9812

Fluctuating 3-comp wind: IncreasedefficiencywithIECWind format (DTUMann).

SRV-1688

11. SIMA

Description

JIRA reference

SIMA help will now open in an external web browser.

SIMA-9340

SIMA Runtime Engine: Batch version available for usewith cluster/cloud environments.

SIMA-9828

SIMA Python library (SIMAPY)enables creation of model elements using script.

SIMA-9799

SIMA Post Processor Examples

Option to specify file with internal (slug) flow definition for RIFLEX