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Personal profile

Research interests

My research continues to contribute to fundamental research in the transition to geophysical turbulence alongside more recently developed focus on wind turbine and wind farm aerodynamics, wind energy resource assessment, and the integration of variable power generation into the grid.

An example of the wind turbine and wind farm aerodynamics was a development of a high-resolution computational fluid dynamics model of a wind turbine in its domain used for evaluating the effect of turbulence on the decay of the wake behind the rotor.  This is currently being extended to modelling a full operational offshore wind farm in collaboration with that wind farm’s operator.

The work on wind resource assessment has recently addressed the long-term stability of the wind resource in Scotland, and a current PhD student with industrial funding is developing a novel type of MCP wind resource assessment.

Most recently, I have begun to be interested in the dynamics of an entire grid. be it the national grid or a micro-grid, when supplied with a substantial contribution from variable renewable generation.


Physics graduate from the University of Freiburg, followed by a DPhil in Atmospheric Physics from the University of Oxford, specialising in the application of chaos theory and low-dimensional modelling of geophysical fluid dynamic experiments.  Joined 1997 at Heriot-Watt University as a lecturer in Mechanical Engineering, teaching primarily fluid dynamics and thermodynamics.  Since 2000 Senior Lecturer in Energy Engineering.  In that capacity I have been teaching energy technology and Renewable Energy and developed a portfolio of postgraduate taught Masters programmes.

Recent consultancies included contributions to the design of small wind turbines, a combined heat and power energy storage system (which involved the construction and testing of a proof-of-concept device), and a techno-economic analysis of a planned hybrid wind-pumped hydro storage installation.


  • TD Environmental technology. Sanitary engineering
  • Energy & Renewables

Fingerprint Dive into the research topics where Wolf-Gerrit Fruh is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Wind turbines Engineering & Materials Science
fluids Physics & Astronomy
vacillation Physics & Astronomy
convection Physics & Astronomy
Wind power Engineering & Materials Science
Turbines Engineering & Materials Science
Offshore wind farms Engineering & Materials Science
vortex Earth & Environmental Sciences

Co Author Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 1996 2019

The Residual Load Duration Curve (rLDC) to model an energy system

Fruh, W-G., Jul 2019, In : Renewable Energy and Power Quality Journal. 17, p. 500-505 6 p.

Research output: Contribution to journalConference article

Open Access
Energy storage

Gibbs Sampling for Game-Theoretic Modeling of Private Network Upgrades with Distributed Generation

Andoni, M., Robu, V., Flynn, D. & Fruh, W-G., 13 Dec 2018, 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe). IEEE, 8571545

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Distributed power generation
Learning systems
Electric lines

Infrared thermography of wall temperature distribution caused by convection of magnetic fluid

Szabo, P., Bekovic, M. & Fruh, W-G., Dec 2018, In : International Journal of Thermal Sciences. 134, p. 129-139 11 p.

Research output: Contribution to journalArticle

Magnetic fluids
Temperature distribution
Heat transfer

Optimising mixed-portfolio hybrid Renewable systems with no or constrained grid connectivity

Fruh, W-G., Mar 2018. 6 p.

Research output: Contribution to conferencePaper

Open Access
Gradient methods
Hybrid systems
Energy storage
Systems analysis

Thermomagnetic convection under alternating magnetic fields

Szabo, P., Lee, Y. C. & Fruh, W-G., 15 Mar 2018, In : Proceedings in Applied Mathematics and Mechanics. 17, 1, p. 633–634 2 p.

Research output: Contribution to journalArticle

Open Access
heat transfer
Nusselt number
magnetic fields


Young Professionals Green Energy Awards - Academic Award for Merlinda Andoni

Merlinda Andoni (Recipient), Valentin Robu (Recipient), Wolf-Gerrit Fruh (Recipient) & David Flynn (Recipient), 24 May 2018

Prize: Prize (including medals and awards)

energy industry
renewable energy