Modelling tidal current turbine wakes using a coupled RANS-BEMT approach as a tool for analysing power capture of arrays of turbines
نویسندگان
چکیده
منابع مشابه
A large-eddy simulation study of wake propagation and power production in an array of tidal-current turbines.
This paper presents our initial work in performing large-eddy simulations of tidal turbine array flows. First, a horizontally periodic precursor simulation is performed to create turbulent flow data. Then those data are used as inflow into a tidal turbine array two rows deep and infinitely wide. The turbines are modelled using rotating actuator lines, and the finite-volume method is used to sol...
متن کاملStudy of NACA 0015 for Diffuser Design in Tidal Current Turbine Applications (TECHNICAL NOTE)
Tidal energy is the most foreseeable form of renewable energy. Tidal energy can be harnessed by tidal barrage, tidal fence and tidal current technologies. Present efforts are focused on diffuser augmented tidal turbines that exploit the kinetic energy of the tidal currents. The power output by a tidal turbine is directly proportional to the cube of velocity of incoming fluid flow. Thus, even a ...
متن کاملAccuracy of the actuator disc-RANS approach for predicting the performance and wake of tidal turbines.
The actuator disc-RANS model has widely been used in wind and tidal energy to predict the wake of a horizontal axis turbine. The model is appropriate where large-scale effects of the turbine on a flow are of interest, for example, when considering environmental impacts, or arrays of devices. The accuracy of the model for modelling the wake of tidal stream turbines has not been demonstrated, and...
متن کاملTidal turbine array optimisation using the adjoint approach
Oceanic tides have the potential to yield a vast amount of renewable energy. Tidal stream generators are one of the key technologies for extracting and harnessing this potential. In order to extract an economically useful amount of power, hundreds of tidal turbines must typically be deployed in an array. This naturally leads to the question of how these turbines should be configured to extract ...
متن کاملشبیهسازی عملکرد هیدرودینامیکی پیشبرندههای دریایی با کمک روش ترکیبی تئوری مومنتوم المان پره و حل معادلات متوسطگیری شده ناویر- استوکس
Hydrodynamic analysis of the marine propulsors with complex geometry such as podded drive systems, ducted propellers, and waterjet systems are more complicated than conventional propeller systems. This fact has caused the usage and development of numerical methods and techniques. The hybrid method to couple the Blade Element Momentum Theory (BEMT) with Reynolds-Averaged Navier Stokes method (RA...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011