RANS Simulation VBM of Single Lab Scaled DOE RM1 MHK Turbine


Attached are the .cas and .dat files for the Reynolds Averaged Navier-Stokes (RANS) simulation of a single lab-scaled DOE RM1 turbine implemented in ANSYS FLUENT CFD-package.

The lab-scaled DOE RM1 is a re-design geometry, based of the full scale DOE RM1 design, producing same power output as the full scale model, while operating at matched Tip Speed Ratio values at reachable laboratory Reynolds number (see attached paper).

In this case study the flow field around and in the wake of the lab-scaled DOE RM1 turbine is simulated using Blade Element Model (a.k.a Virtual Blade Model [VBM]) by solving RANS equations coupled with k-\omega turbulence closure model. It should be highlighted that in this simulation the actual geometry of the rotor blade is not modeled. The effect of turbine rotating blades are modeled using the Blade Element Theory.

This simulation provides an accurate estimate for the performance of device and structure of it's turbulent far wake. Due to the simplifications implemented for modeling the rotating blades in this model, VBM is limited to capture details of the flow field in near wake region of the device.

The required User Defined Functions (UDFs) and look-up table of lift and drag coefficients are included along with the .cas and .dat files.

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Additional Info

DOE Project Name: Northwest National Marine Renewable Energy Center
DOE Project Number: GO18179
DOE Project Lead: Jim Ahlgrimm
DOI: 10.15473/1420430
Last Updated: 3 months ago
Data from April, 2014
Submitted Jun 9, 2016


University of Washington (NNMREC)



Publicly accessible License 


Teymour Javaherchi
University of Washington NNMREC
Nick Stelzenmuller
University of Washington NNMREC
Alberto Aliseda
University of Washington NNMREC
Joseph Seydel
Boeing Co.


MHK, Marine, Hydrokinetic, energy, power, RANS, CFD, Simulation, Experiment, Tidal, Validation, Experimental, computational fluid dynamics, horizontal, axis, turbine, axial, technology, HAHT, model, RM1, rotor, reference model, VBM, virtual blade, BEM, Blade element model, virtual blade model, axial flow turbine, CEC, RRF, rotating reference frame, NNMREC, PMEC, Horizontal Axis Hydrokinetic Turbine, Reynolds, modeling, Navier-Stokes, UDF, user defined function


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