• Brovej, 118, 116

    2800 Kgs. Lyngby

    Denmark

Accepting PhD Students

1994 …2022

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Hans Holger Hundborg Koss is an Associate Professor at the Department of Civil and Mechanical Engineering, Section for Structures and Safety, at the Technical University of Denmark (DTU) in Kgs. Lyngby, Denmark. His long-standing research experience is in the field of Wind Engineering and Structural Dynamics with particular focus on the simulation of wind loads on buildings and structures (experimentally and numerically), their static and dynamic response and the climatic behaviour of the Urban Environment. With his design work on a specialised Climatic Wind Tunnel in 2008-2009, his research expanded to cold climate effects on aerodynamic performance of bridge cables and wind turbine blades, especially related to Atmospheric Icing. With the investigation of topology optimisation of minimal structures under stochastic loading in 2016, he embarked on the field of 3D Additive Manufacturing. This activity lead subsequently to the development of an innovative Biopolymer-based Composit as a building material allowing a high degree of freedom in the printing process.

His teaching covers Wind Engineering, Wind Tunnel Testing, Structural Engineering, Probabilistic Modelling, Urban Environments and Experimental Structural Mechanics on both basic and advanced level.

Other information

Work Experience:

Danish Maritime Intitute/FORCE Technology, Department for Hydro and Aerodynamics

Centre Scientifique et Technique du Bâtiment (CSTB), Nantes, France

Boundary-layer Wind Tunnel Laboratory University of Bochum, Germany

Language Skills:
German
English
Danish
French

Research areas

Structures & Climate Impacts:

  • Simulation of wind effects on structures (main focus on high-rise buildings and cable-supported bridges).
  • Assessment of static and dynamic response of structures to stochastic load processes with respect to safety, lifetime and occupant comfort.
  • Wind tunnel testing in general (main focus on atmospheric boundary-layer flow).
  • Assessment of helicopter operations to ships and offshore structures through wind tunnel testing.
  • Experimental simulation of in-cloud icing of structures under wind (bridge cables, wind turbine blades, etc.) including development of measurement techniques for ice layer characterisation.
  • Thermodynamics of smart surfaces with respect to hydro and icephobic behaviour.
  • Aerodynamic instabilities due to icing.
  • Topology optimisation of load-carrying structures in connection to 3D-printing (additive manufacturing).
  • Development of test methods for non-invative diagnostic of structural health.

Material:

  • Biopolymer composites as building (structural) material.

Environmental Engineering:

  • Effect of the urban environment on the comfort of people (wind and thermal comfort aspects).
  • Design of urban areas as a sustainable environment for high liveability.
  • Snow accumulation on and around buildings in the Arctic (wind tunnel simulation and field measurements/monitoring).
  • Exhaust gas dispersion around large structures (onshore and offshore) and ships.
  • Passenger wind comfort onboard cruise vessels.

Special Investigation Tasks:

  • Investigation of aerodynamic implication of train accident on the Great Belt Bridge (as a DTU group member for the Accident Investigation Board Denmark).
  • Wind field and climate at the Great Belt Bridge in relation to vehicle response to aerodynamic loading (member of DTU group).

Other Research Interests:

  • Evolution of structural form finding in nature (chambered shells in particular).
  • Biomimetic in structural design.

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 9 - Industry, Innovation, and Infrastructure
  • SDG 11 - Sustainable Cities and Communities
  • SDG 12 - Responsible Consumption and Production
  • SDG 13 - Climate Action

Education/Academic qualification

Influence of wind simulation on the overload risk of low-rise steel structures (Ph.D. Thesis), Ruhr-University Bochum, Germany<br>Influence of wind simulation on the overload risk of low-rise steel structures<br>(Ph.D. Thesis)

19952000

European Research Network (HCM) on Wind Engineering, CSTB, Nantes (France) ; DMI, Lyngby (Denmark)

Apr 1994Nov 1994

Civil Engineering - Master Thesis, Ruhr-University Bochum, Germany

19871994

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