prof.dr.ir. W. Rohlfs (Wilko)

I am full professor in the Department of Thermal and Fluid Engineering. In 2015 I finished my PhD on "Wave Characteristics of Falling Liquid Films under the Influence of Positive and Negative Inclination or Electrostatic Forces" at RWTH Aachen University for which I received the Friedrich Wilhelm Award. In 2014 I obtained a second PhD in economics on "Decision-Making under Multi-Dimensional Price Uncertainty for Long-Lived Energy Investments". In 2015, I was Post Doctoral Fellow in the research group of John Lienhard V at MIT, Cambridge. From 2015 to 2021 I was leader of the research group "Convective Heat Transfer" at RWTH Aachen University. In 2021, I was appointed as Full Professor in Heat Transfer and Thermodynamics at the University of Twente.

Engineering & Materials Science

# Boundary Layers
# Heat Transfer
# Liquid Films

Physics & Astronomy

# Falling
# Jet Impingement

Chemistry

# Falling Film
# Heat Transfer
# Liquid Film

Faculty of Engineering Technology (ET), Heat Transfer and Thermodynamics (HTT)

Wilko Rohlfs
Retail selling of components for solar power plants
TotalEnergies
Consulting services

Shu, Q., Pan, L., Kneer, R., Rietz, M. , & Rohlfs, W. (2023). Effective thermal conductivity simulations of suspensions containing non-spherical particles in shear flow. International journal of heat and mass transfer, 204, [123808]. https://doi.org/10.1016/j.ijheatmasstransfer.2022.123808

Rietz, M., Kneer, R., Scheid, B. , & Rohlfs, W. (2021). Spanwise structuring and rivulet formation in suspended falling liquid films. Physical review fluids, 6(8), [084805]. https://doi.org/10.1103/PhysRevFluids.6.084805

Rohlfs, W., Cammiade, L. M. F., Rietz, M., & Scheid, B. (2021). On the effect of electrostatic surface forces on dielectric falling films. Journal of fluid mechanics, 906, [A18]. https://doi.org/10.1017/jfm.2020.735

Kumar, G. V., Cammiade, L. M. F., Kelm, S., Prakash, K. A., Groß, E. M., Allelein, H-J., Kneer, R. , & Rohlfs, W. (2021). Implementation of a CFD model for wall condensation in the presence of non-condensable gas mixtures. Applied thermal engineering, 187, [116546]. https://doi.org/10.1016/j.applthermaleng.2021.116546

Shu, Q., Kneer, R. , & Rohlfs, W. (2021). Influence of high shear on the effective thermal conduction of spherical micro- and nanoparticle suspensions in view of particle rotation. International journal of heat and mass transfer, 175, [121251]. https://doi.org/10.1016/j.ijheatmasstransfer.2021.121251

Askarizadeh, H., Ahmadikia, H., Ehrenpreis, C., Kneer, R., Pishevar, A. , & Rohlfs, W. (2019). Role of gravity and capillary waves in the origin of circular hydraulic jumps. Physical review fluids, 4(11). https://doi.org/10.1103/PhysRevFluids.4.114002

Rohlfs, W., Rietz, M., & Scheid, B. (2018). WaveMaker: The three-dimensional wave simulation tool for falling liquid films. SoftwareX, 7, 211-216. https://doi.org/10.1016/j.softx.2018.07.003

Kofman, N. , Rohlfs, W., Gallaire, F., Scheid, B., & Ruyer-Quil, C. (2018). Prediction of two-dimensional dripping onset of a liquid film under an inclined plane. International journal of multiphase flow, 104, 286-293. https://doi.org/10.1016/j.ijmultiphaseflow.2018.02.007

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Wilko Rohlfs is the founder of the mobile teaching application HeatQuiz. HeatQuiz was developed to help students deepen their knowledge of conduction, convection, radiation and mass transfer by solving short tasks. The tasks can be solved in a limited amount of time without the need for a pencil. This makes HeatQuiz ideal for use during short breaks.

The questions are reached via so-called "game maps", which provide structured access to series of questions, each consisting of 5-10 tasks.

HeatQuiz can be accessed via the website: www.HeatQuiz.app.

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.