Skip to Main Content U.S. Department of Energy
Energy and Environment Directorate

Samuel Harding

Samuel Harding

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 375-3799


Dr. Harding is a Post-doctoral Research Associate in the Hydrology Group. His experience includes basic and applied research in hydrology and hydroelectric machines. His principal areas of expertise are in experimental fluid dynamics, tidal velocity surveying, deployment of subsea instrumentation, and mechanical engineering design pertaining to hydroelectric and marine hydrokinetic turbines. He has experience with a wide range of experimental scales, from full scale marine hydrokinetic turbine prototypes to laboratory scale testing and instrumentation of low head hydro-turbines.

Education and Credentials

  • Ph.D., Mechanical Engineering, University of Edinburgh, 2013
  • B.E. (1st Class Honors), Mechanical Engineering, University of Auckland, 2008

Awards and Recognitions

  • Outstanding Paper Award for 2015, High-resolution velocimetry in energetic tidal currents using a convergent-beam acoustic Doppler profiler, Measurement Science and Technology
  • OMAE 2012 Best Paper of Offshore Technology Symposium, 31st International Conference on Ocean, Offshore and Arctic Engineering (OMAE), Rio de Janeiro, 2012
  • Top Achiever Doctoral Scholarship, University of Edinburgh, 2009-2011
  • Energy Education Trust of New Zealand Doctoral Scholarship, University of Auckland, 2009
  • Genesis Energy Engineering Scholarship, University of Auckland, 2008
  • Senior Prize in Mechanical Engineering, University of Auckland, 2008
  • Royal Aeronautical Society Prize, University of Auckland, 2008

PNNL Publications


  • Zhou T, J Bao, M Huang, Z Hou, EV Arntzen, X Song, SF Harding, PS Titzler, H Ren, CJ Murray, WA Perkins, X Chen, JC Stegen, G Hammond, PD Thorne, and JM Zachara. 2018. "Riverbed Hydrologic Exchange Dynamics in a Large Regulated River Reach." Water Resources Research 54(4):2715-2730.  doi:10.1002/2017WR020508


  • Harding SF, and GEL Harker-Klimes. 2017. Field measurement of velocity time series in the center of Sequim BayPNNL-26980, Pacific Northwest National Laboratory, Richland, WA. 
  • Harding SF, and MC Richmond. 2017. Experimental Pressure Measurements on Hydropower Turbine RunnersPNNL-26061, Pacific Northwest National Laboratory, Richland, WA. 
  • Harding SF, L Kilcher, and J Thomson. 2017. "Turbulence Measurements from Compliant Moorings - Part I: Motion Characterization." Journal of Atmospheric and Oceanic Technology 34(6):1235-1247.  doi:10.1175/JTECH-D-16-0189.1
  • Kilcher L, J Thomson, SF Harding, and S Nylund. 2017. "Turbulence Measurements from Compliant Moorings - Part II: Motion Correction." Journal of Atmospheric and Oceanic Technology 34(6):1249-1266.  doi:10.1175/JTECH-D-16-0213.1
  • Romero Gomez PDJ, SF Harding, and MC Richmond. 2017. "The Effects of Sampling Location and Turbulence on Discharge Estimates in Short Converging Turbine Intakes." Engineering Applications of Computational Fluid Dynamics 11(1):513-525.  doi:10.1080/19942060.2017.1313176


  • Harding SF, B Sellar, and MC Richmond. 2016. "Field testing of a convergent array of acoustic Doppler profilers for high-resolution velocimetry in energetic tidal currents." In Proceedings of the 4th Marine Energy Technology Symposium (METS2016), April 25-27, 2016, Washington DC.  National Hydropower Association, Washington, DC. 
  • Harding SF, MC Richmond, PDJ Romero Gomez, and JA Serkowski. 2016. "Effects of non-homogenous flow on ADCP data processing in a hydroturbine forebay." Flow Measurement and Instrumentation 52:1-9.  doi:10.1016/j.flowmeasinst.2015.12.010
  • Harding SF, PDJ Romero Gomez, and MC Richmond. 2016. Performance of Virtual Current Meters in Hydroelectric Turbine IntakesPNNL-25319, Pacific Northwest National Laboratory, Richland, WA. 


  • Richmond MC, SF Harding, and PDJ Romero Gomez. 2015. "Numerical performance analysis of acoustic Doppler velocity profilers in the wake of an axial-flow marine hydrokinetic turbine." International Journal of Marine Energy 11:50-70.  doi:10.1016/j.ijome.2015.05.004
  • Sellar B, SF Harding, and MC Richmond. 2015. "High-resolution velocimetry in energetic tidal currents using a convergent-beam acoustic Doppler profiler." Measurement Science & Technology 26:, doi:10.1088/0957-0233/26/8/085801


  • Thomson J, L Kilcher, and SF Harding. 2014. "MULTI-SCALE COHERENT TURBULENCE AT TIDAL ENERGY SITES." In Proceedings of the 5th International Conference on Ocean Energy (ICOE2014), November 4-6, 2014, Halifax, Nova Scotia.  Ocean Energy Systems, Lisbon, Canada. 

Energy and Environment

Core Research Areas