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MHK Turbine Simulation for Floating Platform
Dear Forum Members,
I understand that QBlade currently has the capability of modelling Marine Hydrokinetic (MHK) turbines with good accuracy.
Upon reading the documentation, it appears that one of the steps required for simulation of MHK turbines is setting the Turbine Environment to Onshore Installation. Could someone clarify if analysis of MHK Turbine on Floating Platform is possible at current version of QBlade?
Otherwise, if such feature is not available, would someone be so kind as to share some idea on how simulation of MHK Turbine on floating platform could be performed on QBlade?
Hi Andhi,
there are various MHK turbine concepts, each with distinct requirements for the modeling approach.
Some MHK systems are fixed to the seabed, while others are suspended from floating platforms or vessels. The choice of modeling approach depends on the focus of your investigation.
The method recommended in the documentation involves modeling the entire environment as “submerged in water.” This is done by adjusting the fluid density and related parameters to those of salt water. In this configuration, only the MHK device is modeled – excluding any floating platform it may be attached to. A key advantage of this approach is the ability to define a turbulent inflow, which directly affects the turbine’s performance.
Alternatively, it is possible to model a floating platform with an MHK turbine attached to its bottom. This setup allows for the simulation of the combined dynamics of the platform, its mooring system, and the turbine. However, the main limitation of this approach is that it currently does not support the definition of a turbulent inflow for the MHK rotor. In this case, the rotor is influenced solely by the velocities induced by ocean currents and waves.
Best regards,
David
