Person

Dr.-Ing. Dr. rer. pol.

Wilko Rohlfs

M. B. A.
Wilko Rohlfs
Institute of Heat and Mass Transfer

Address

Building: 1225

Room: 204

Augustinerbach 6

52056 Aachen

Contact

workPhone
Phone: +49 241 80 97463
Fax: +49 241 80 92143
 

Functions and competences

Office hours

To the office hours.

Personal competences

  • Modeling and analysis of convective transport processes
  • Numerical modeling
  • CFD

Fields of applied research

Current projects

  • Analysis of defrosting methods in air cooler (AIF-FKT)
  • Passive pulsed cooling of grinding processes (AIF-ZIM)
  • Investigation of two- and three-dimensional wavy flow structures under the presence of thermo-capillary and electro-magnetic forces (DFG)

 

Publications

Title Author(s)
The Influence of Subsurface Temperature Measurements on the Determination of Transient Wall-Side Boundary Conditions: An Analytical Tool
Journal Article (2017)
Gronarz, Tim
Frekers, Yona
Kneer, Reinhold
Rohlfs, Wilko
Self-similarity of heat transfer characteristics in laminar submerged and free-surface slot jet impingement
Journal Article (2017)
Bieber, Malte
Kneer, Reinhold
Rohlfs, Wilko
Warum Flüssigkeiten nicht auf rotierenden Zylindern hinabfließen
Poster (2017)
Rietz, Manuel
Rohlfs, Wilko
Kneer, Reinhold
Scheid, Benoit
Wie eine dritte Dimension das Skalierungsverhalten eklatant verändert: Thermisches Einlaufverhalten in 2-D und 3-D
Poster (2017)
Ehrenpreis, Claas
Rohlfs, Wilko
Mobiles spielbasiertes Lernen physikalischer Zusammenhänge in der Wärmeübertragung
Poster (2017)
Rohlfs, Wilko
Sabelberg, Enno
Pischke, Philipp
Hydrodynamic waves in films flowing under an inclined plane
Journal Article (2017)
Rohlfs, Wilko
Pischke, Philipp
Scheid, Benoit
Wave characteristics of falling liquid films under the influence of positive and negative inclination or electrostatic forces
Dissertation / PhD Thesis (2016)
Rohlfs, Wilko
Skalierungsregeln für den Stoffübergang bei der Umkehrosmose in laminaren Strömungen mit periodischen Strömungskörpern
Conference Presentation (2016)
Rohlfs, Wilko
Thiel, Gregory P.
Lienhard, John H.
Skalierungsregeln für den Wärme- und Stoffübergang in laminaren Strömungen mit periodischen Strömungskörpern
Poster (2016)
Rohlfs, Wilko
Lienhard, John H.
Flow structures and heat transfer in laminar jet impingement
Contribution to a conference proceedings, Abstract (2016)
Rohlfs, Wilko
Kneer, Reinhold
Entrance length effects on Graetz number scaling in laminar duct flows with periodic obstructions: Transport number correlations for spacer-filled membrane channel flows
Journal Article (2016)
Rohlfs, Wilko
Lienhard V, John H.
Making desalination an energy efficient alternative
Contribution to a conference proceedings (2016)
Lienhard V, John H.
Thiel, Gregory P.
Rohlfs, Wilko
Design, development, and validation of concepts for generating passive pulsation in cooling nozzles
Journal Article (2016)
Sabelberg, Enno
Cardenas, Maria
Kneer, Reinhold
Rohlfs, Wilko
Modeling reverse osmosis element design using superposition and an analogy to convective heat transfer
Journal Article (2016)
Rohlfs, Wilko
Thiel, Gregory P.
Lienhard V, John H.
Critical inclination for absolute/convective instability transition in inverted falling films
Journal Article (2016)
Scheid, Benoit
Kofman, Nicolas
Rohlfs, Wilko
A spin coating device for the investigation of spray-film interactions under engine relevant conditions
Journal Article (2016)
Seel, Kevin
Reddemann, Manuel Armin
Verbaere, Vincent
Mathieu, Florian
Cardenas, Maria
Rohlfs, Wilko
Haustein, Herman D.
Kneer, Reinhold
Dripping Transition in Falling Film Flows along a Rotating Cylinder
Conference Presentation (2016)
Rietz, Manuel
Rohlfs, Wilko
Kneer, Reinhold
Scheid, Benoit
How Technological Choices, Existing Portfolios, and Multi-Dimensional Price Risk Affect Power Generation Investments
Journal Article (2016)
Rohlfs, Wilko
Madlener, Reinhard
Flow structures and heat transfer characteristics in arrays of submerged laminar impinging jets
Journal Article (2016)
Rohlfs, Wilko
Bieber, Malte
Ehrenpreis, Claas
Jörg, J.
Sabelberg, Enno
Kneer, Reinhold
Phase diagram for the onset of circulating waves and flow reversal in inclined falling films
Journal Article (2015)
Rohlfs, Wilko
Scheid, Benoit
Influence of Gravity and Electrostatic Surface Forces on the Onset of Circulating Waves and Flow Reversal in Falling Liquid Films
Contribution to a conference proceedings (2015)
Rohlfs, Wilko
Scheid, B.
Kneer, Reinhold
Decision making under multi-dimensional price uncertainty for long lived energy investments
Dissertation / PhD Thesis (2015)
Rohlfs, Wilko
Experimental investigation of thermal structures in regular three-dimensional falling films
Journal Article (2015)
Rietz, M.
Rohlfs, Wilko
Kneer, R.
Scheid, B.
Influence of gravity and electrostatic surface forces on the onset of rolling waves and flow reversal in falling liquid films
Contribution to a conference proceedings, Contribution to a book (2015)
Rohlfs, Wilko
Kneer, Reinhold
Scheid, B.
Flow Structures And Heat Transfer In Submerged Laminar Jets
Contribution to a conference proceedings (2015)
Rohlfs, Wilko
Jörg, Johannes
Ehrenpreis, Claas
Rietz, Manuel
Haustein, Herman D.
Kneer, Reinhold
Experimental assessment of single lens volumetric PIV with a commercial lightfield camera
Contribution to a conference proceedings (2015)
Rietz, M.
Hundhausen, Alexander
Allelein, Hans-Josef
Belt, Alexander
Garbrecht, Oliver
Kneer, Reinhold
Rohlfs, Wilko
Formation of snow penitentes by radiative instabilities
Journal Article, Contribution to a conference proceedings, Contribution to a conference proceedings, Abstract (2015)
Rohlfs, Wilko
Critical inclination for absolute dripping in falling films subject to Rayleigh-Taylor instability
Journal Article, Contribution to a conference proceedings, Abstract (2015)
Scheid, Benoit
Rohlfs, Wilko
Validity of classical scaling laws in laminar channel flow with periodic spacer-like obstacles
Poster (2015)
Rohlfs, Wilko
Lienhard V, John H.
Three-dimensional flow structures in laminar falling liquid films
Journal Article (2014)
Dietze, Georg Friedrich
Rohlfs, W.
Naehrich, K.
Kneer, R.
Scheid, B.
On the stabilizing effect of a liquid film on a cylindrical core by oscillatory motions
Journal Article (2014)
Rohlfs, Wilko
Binz, Matthias
Kneer, Reinhold
Direct numerical simulations of a thin liquid film coating an axially oscillating cylindrical surface
Journal Article (2014)
Binz, Matthias
Rohlfs, Wilko
Kneer, Reinhold
Influence of viscous flow relaxation time on self-similarity in free-surface jet impingement
Journal Article (2014)
Rohlfs, Wilko
Ehrenpreis, Claas
Haustein, Herman D.
Kneer, Reinhold
Optimal Investment Strategies in Power Generation Assets: The Role of Technological Choice and Existing Portfolios in the Deployment of Low-carbon Technologies
Journal Article (2014)
Rohlfs, Wilko
Madlener, Reinhard
Multi-commodity real options analysis of power plant investments: discounting endogenous risk structures
Journal Article (2014)
Rohlfs, Wilko
Madlener, Reinhard
Influence of Local Flow Acceleration on the Heat Transfer of Submerged and Free-surface Jet Impingement
Contribution to a conference proceedings (2014)
Rohlfs, Wilko
Ehrenpreis, Claas
Haustein, Herman D.
Garbrecht, Oliver
Kneer, Reinhold
Combined Three-Dimensional Flow- and Temperature-Field Measurement Using Digital Light Field Photography
Contribution to a conference proceedings (2014)
Rietz, Manuel
Garbrecht, Oliver
Rohlfs, Wilko
Kneer, Reinhold
Flow Structures and Heat Transfer in Submerged and Free Laminar Jets
Contribution to a conference proceedings (2014)
Kneer, Reinhold
Haustein, Herman D.
Ehrenpreis, Claas
Rohlfs, Wilko
Non-linear wave and flow dynamics of laminar three-dimensional falling liquid films
Conference Presentation, Poster (2014)
Dietze, G. F.
Rohlfs, W.
Nährich, K.
Kneer, R.
Scheid, B.
Direct and model-based simulations of three-dimensional falling liquid films : surface waves and associated flow structures
Contribution to a conference proceedings (2014)
Dietze, G. F.
Rohlfs, W.
Nährich, K.
Kneer, R.
Scheid, B.
Influence of micro-scale aspects and jet-to-jet interaction on free-surface liquid jet impingement for micro-jet array cooling
Contribution to a conference proceedings, Contribution to a book (2014)
Haustein, H. D.
Joerg, J.
Rohlfs, W.
Kneer, R.
Thermally induced break-up of regularly excited three-dimensional surface waves on a vertical liquid film
Contribution to a conference proceedings (2014)
Rietz, M.
Rohlfs, W.
Kneer, R.
Submerged laminar jet impingement : A textbook case for vortex-wall interaction influencing heat transfer
Conference Presentation (2014)
Rohlfs, Wilko
Ehrenpreis, Claas
Jörg, J.
Kneer, Reinhold
Phase diagram for the onset of rolling waves and flow reversal in inclined falling films
Conference Presentation, Abstract (2014)
Rohlfs, Wilko
Scheid, Benoit
Kneer, Reinhold
Selbstähnlichkeit im Wärmeübergang laminarer Prallstrahlen : Der Einfluss einer dimensionslosen Kennzahl für die viskose Relaxation
Conference Presentation (2014)
Rohlfs, Wilko
Ehrenpreis, C.
Haustein, Herman D.
Kneer, Reinhold
Assessment of Clean-Coal Strategies : The Questionable Merits of Carbon Capture-Readiness
Journal Article (2013)
Rohlfs, Wilko
Madlener, Reinhard
Experimental investigation of 3-dimensional wavy liquid films under the coupled influence of thermo-capillary and electrostatic forces
Journal Article (2013)
Rohlfs, Wilko
Dietze, Georg Friedrich
Haustein, Herman D.
Kneer, Reinhold
Challenges in the Evaluation of Ultra-Long-Lived Projects: Risk Premia for Projects with Eternal Returns or Costs : FCN Working Paper No. 13/2013, Institute for Future Energy Consumer Needs and Behavior, RWTH Aachen University, August
Preprint (2013)
Rohlfs, Wilko
Madlener, Reinhard
Optimal Power Generation Investment: Impact of Technology Choices and Existing Portfolios for Deploying Low-Carbon Coal Technologies : FCN Working Paper No. 12/2013, Institute for Future Energy Consumer Needs and Behavior, RWTH Aachen University, August
Preprint (2013)
Rohlfs, Wilko
Madlener, Reinhard
Modeling of wave modes on a vertical film of a viscous ferromagnetic fluid flowing down a cylindrical electric conductor
Journal Article (2013)
Tsvelodub, O. Yu.
Rohlfs, Wilko
Kneer, Reinhold
Investment Decisions Under Uncertainty : CCS Competing with Green Energy Technologies
Contribution to a conference proceedings (2013)
Rohlfs, Wilko
Madlener, Reinhard
Numerical simulation of the Plateau- Rayleigh instability developing on an oscillating cylinder covered by a thin liquid film
Conference Presentation (2013)
Binz, Matthias
Rohlfs, Wilko
Kneer, Reinhold
Development of Heat Transfer in a Two-Dimensional Wavy Falling Film of Water and its Influence on Wave Stability
Contribution to a conference proceedings, Contribution to a book (2013)
Haustein, Herman D.
Rohlfs, Wilko
Al-Sibai, Faruk
Kneer, Reinhold
Entwicklung von regulären drei-dimensionalen Oberflächenwellen unter isothermen und nicht-isothermen Bedingungen
Conference Presentation (2013)
Rietz, M.
Rohlfs, Wilko
Kneer, Reinhold
Einfluss von Wand-Wirbel-Interaktion und lokaler Strömungsbeschleunigung auf den Wärmeübergang laminarer Prallstrahlen
Conference Presentation (2013)
Rohlfs, Wilko
Haustein, Herman D.
Garbrecht, Oliver
Kneer, Reinhold
Thermally induced break-up of regularly excited three-dimensional wavy liquid films
Contribution to a conference proceedings, Abstract (2013)
Rohlfs, Wilko
Rietz, M.
Haustein, Herman D.
Kneer, Reinhold
Two-phase electrohydrodynamic simulations using a volume-of-fluid approach: a comment [Letter to the editor]
Journal Article (2012)
Rohlfs, Wilko
Dietze, Georg Friedrich
Haustein, Herman D.
Kneer, Reinhold
Assessment of Clean-Coal Strategies: The Questionable Merits of Carbon Capture-Readiness
Preprint (2012)
Rohlfs, Wilko
Madlener, Reinhard
Evaluation of the sensitivity and response of IR thermography from a transparent heater under liquid jet impingement
Contribution to a conference proceedings (2012)
Haustein, H. D.
Rohlfs, W.
al-Sibai, Faruk
Kneer, R.
Investment Decisions Under Uncertainty : CCS Competing with Green Energy Technologies
Contribution to a conference proceedings (2012)
Rohlfs, Wilko
Madlener, Reinhard
Insights into the local heat transfer of a submerged impinging jet: Influence of local flow acceleration and vortex-wall interaction
Journal Article (2012)
Rohlfs, Wilko
Haustein, Herman D.
Garbrecht, Oliver
Kneer, Reinhold
Experimental investigation into three-dimensional wavy liquid films under the influence of electrostatic forces
Journal Article (2012)
Rohlfs, Wilko
Dietze, Georg Friedrich
Haustein, Herman D.
Tsvelodub, Oleg Yu
Kneer, Reinhold
Local heat transfer coefficient measurement through a visibly-transparent heater under jet-impingement cooling
Journal Article (2012)
Haustein, H. D.
Tebruegge, G.
Rohlfs, W.
Kneer, R.
Einfluss axialer Zylinderoszillation auf die Stabilität eines umhüllenden axialsymmetrischen Flüssigkeitsfilms
Poster (2012)
Binz, Matthias
Rohlfs, Wilko
Kneer, Reinhold
Hydrodynamics of falling liquid films with periodic 3-dimensional surface waves
Poster, Contribution to a conference proceedings, Abstract (2012)
Dietze, Georg Friedrich
Rohlfs, Wilko
Kneer, R.
Preliminary Results of the Influence of Thermo-capillary Forces on Two-Dimensional Wavy Falling Films of Water
Conference Presentation (2012)
Haustein, Herman D.
Tebrügge, Gerrit
Rohlfs, Wilko
Kneer, Reinhold
Experimental investigation of 3-dimensional wavy liquid films under the coupled influence of thermo-capillary and electrostatic forces
Conference Presentation (2012)
Rohlfs, Wilko
Dietze, Georg Friedrich
Haustein, Herman D.
Kneer, Reinhold
Investigation of wavy liquid films under the influence of electrostatic and thermo-capillary forces
Poster (2012)
Rohlfs, Wilko
Kneer, Reinhold
Experimental and Numerical Investigations of Falling Liquid Films Influenced by the Presence of Electric Fields
Contribution to a conference proceedings (2012)
Rohlfs, Wilko
Haustein, Herman D.
Dietze, Georg Friedrich
Kneer, Reinhold
Experimental Investigation of 3-Dimensional Wavy Liquid Films under the Influence of Electrostatic Forces
Journal Article (2012)
Rohlfs, Wilko
Dietze, Georg Friedrich
Haustein, Herman D.
Tsvelodub, Oleg Yu.
Kneer, Reinhold
Valuation of CCS-Ready Coal-Fired Power Plants: A Multi-Dimensional Real Options Approach
Journal Article (2011)
Rohlfs, Wilko
Madlener, Reinhard
Multi-Commodity Real Options Analysis of Power Plant Investments: Discounting Endogenous Risk Structures
Preprint (2011)
Rohlfs, Wilko
Madlener, Reinhard
Discounting in Multi-Asset Real Options Analysis
Contribution to a conference proceedings (2011)
Madlener, Reinhard
Rohlfs, Wilko
Experimental Investigation of 3-Dimensional Wavy Liquid Films under the Influence of Electrostatic Forces
Conference Presentation (2011)
Rohlfs, Wilko
Dietze, Georg Friedrich
Haustein, Herman D.
Lel, Viacheslav
Kneer, Reinhold
Cost Effectiveness of Carbon Capture-Ready Coal Power Plants with Delayed Retrofit
Preprint (2010)
Rohlfs, Wilko
Madlener, Reinhard
Valuation of CCS-Ready Coal-Fired Power Plants: A Multi-Dimensional Real Options Approach
Preprint (2010)
Rohlfs, Wilko
Madlener, Reinhard
Numerische und experimentelle Untersuchungen von Rayleight-Bénard Konvektion in einer geschlossenen Zelle
Poster (2010)
Rohlfs, Wilko
Lahann, N.
Dirgayasa, A.
Dietze, Georg Friedrich
Kneer, Reinhold
Valuation of CCS-ready Coal-Fired Power Plants: A Multi-dimensional Real Options Approach
Conference Presentation (2010)
Madlener, Reinhard
Rohlfs, Wilko