Prof. Dr.-Ing. Bettina Frohnapfel

seit 05/12                   Professorin für Strömungsmechanik, Karlsruher Institut für Technologie (KIT)

02/10 – 04/12             Leiterin der Emmy Noether- Nachwuchsgruppe „Viscous Flow Control“
                                 an der Technischen Universität Darmstadt

12/08 – 04/12             Research Coordinator der Nachwuchsgruppe “Drag and Circulation Control” am “Center of Smart                                                 Interfaces”, Technische Universität Darmstadt (gemeinsam mit Dr.-Ing. Sven Grundmann)

11/07 - 11/08             Postdoctoral Fellow am Turbulence and Heat Transfer Laboratory, Department of Mechanical                                                     Engineering, The University of Tokyo, Japan (JSPS Postdoctoral Fellowship)

10/03 - 11/07             Wissenschaftliche Mitarbeiterin am Lehrstuhl für Strömungsmechanik, Universität                                                                          Erlangen-Nürnberg, Forschungsgruppe Turbulenz

Ausbildung

30.03.2007                  Promotion zum Dr.-Ing.

08/2003                      Diplom-Ingenieur Universität

10/98 - 08/03              Friedrich-Alexander Universität Erlangen-Nürnberg
                                  Studiengang: Chemieingenieurwesen

06/1998                      Abitur, Stiftung Marienschule Fulda

Auslandsaufenthalte in USA, Argentinien, Chile, Schweden

Stipendien und Auszeichnungen

2017                           Feodor Lynen-Forschungsstipendium der Alexander von Humboldt Stiftung

2016                           Fakultätslehrpreis der KIT-Fakultät Maschinenbau

2010                           Aufnahme in das Internetportal AcademiaNet

2010 - 2011                 ProProfessur-Programm der hessischen Universitäten

2008 - 2010                 Fast Track-Programm der Robert Bosch Stiftung

2008                           Promotionspreis der Technischen Fakultät der Universität Erlangen-Nürnberg

2004                           ZARM Förderpreis (2. Platz)

2004                           Shell She-Study Award (3. Platz)

Digitale Kopien der Veröffentlichungen sind hier erhältlich

Fachzeitschriften und Büchern:

1. Quadrio, M., Frohnapfel, B., Hasegawa, Y. (2016): Does the choice of the forcing term affect flow statistics in DNS of turbulent channel flow? European Journal of Mechanics – B/Fluids, 55(2): 286-293. doi:10.1016/j.euromechflu.2015.09.005
   

2. Cimarelli, A., Cocconi, G., Frohnapfel, B.,  De Angelis, E. (2015): Spectral enstrophy budget in a shear-less flow with turbulent/non-turbulent interface. Physics of Fluids 27: 125106 http://dx.doi.org/10.1063/1.4937433

3. Stroh, A., Hasegawa, Y., Schlatter, P., Frohnapfel, B. (2015): A comparison of opposition control in turbulent boundary layer and turbulent channel flow. Physics of Fluids, Vol.27: 075101

4. Gatti, D. Güttler, A., Frohnapfel, B., Tropea, C. (2015): Experimental assessment of spanwise-oscillating dielectric electroactive surfaces for turbulent drag reduction in an air channel flow.  Experiments in Fluids, Vol. 56: 110-125

5. Tuerk, S., Daschiel, G., Stroh, A., Hasegawa, Y., Frohnapfel, B. (2014): Turbulent flow over superhydrophobic surfaces with streamwise grooves. Journal of Fluid Mechanics, Vol. 747: 186-217

6. Hasegawa, Y., Quadrio, M., Frohnapfel, B. (2014): Numerical simulation of turbulent duct flows with constant power input, Journal of Fluid Mechanics, Vol. 750: 191-209

7. Gatti, D., Haus, H., Matysek, M., Frohnapfel, B., Tropea, C., Schlaak, H.F. (2014): The Dielectric breakdown limit of silicone dielectric elastomer actuators. Applied Physics Letters 104(5): 052905 DOI: 10.1063/1.4863937

8.  Hasegawa, Y., Frohnapfel, B., Quadrio, M. (2013): Money versus time: evaluation of control performance based on convenience and energy consumption. (in Japanese)

9. Daschiel, G., Frohnapfel, B., Jovanović, J. (2013): Numerical investigation of flow through a triangular duct: The coexistence of laminar and turbulent flow. International Journal of Heat and Fluid Flow 41: 27-33

10. Cimarelli, A., Frohnapfel, B., Hasegawa, Y., De Angelis, E., Quadrio, M. (2013): Prediction of turbulence control for arbitrary periodic spanwise wall movement. Physics of Fluids 25: 075102

11. Stroh, A., Frohnapfel, B., Hasegawa, Y., Kasagi, N., Tropea, C. (2012): The influence of frequency-limited and noise-contaminated sensing on reactive turbulence control schemes. Journal of Turbulence, DOI: 10.1080/14685248.2012.679343

12. Frohnapfel, B., Hasegawa, Y., Quadrio, M. (2012): Money versus Time: Evaluation of Flow Control in Terms of Energy Consumption and Convenience. Journal of Fluid Mechanics, Vol. 700: 406-418 DOI 10.1017/jfm.2012.139

13. Lammers, P., Jovanović, J., Frohnapfel, B., Delgado, A. (2012): Erlangen pipe flow: the concept and DNS results for microflow control of near-wall turbulence. Microfluidics and Nanofluidics, DOI 10.1007/s10404-012-0972-0

14. Hasegawa, Y., Frohnapfel, B., Kasagi, N. (2011): Effects of spatially varying slip length on friction drag reduction in wall turbulence. Journal of Physics: Conference Series Vol. 318: 022028

15. Jovanović, J., Frohnapfel, B., Srikantharajah, R., Jovanović, D., Lienhart, H., Delgado, A. (2011): Microflow-based control of near-wall fluctuations for large viscous drag reduction. Microfluidics and Nanofluidics, DOI: 10.1007/s 10404-011-0842-1

16. Frohnapfel, B., Hasegawa, Y., Kasagi, N. (2010): Friction drag reduction through damping of the near-wall spanwise velocity component. Int. Journal of Heat and Fluid Flow, Vol. 31: 434-441

17. Frohnapfel, B., Hasegawa, Y., Kasagi, N. (2010): Effect of near-wall componental modification of turbulence on its statistical Konferenzbeiträgeproperties. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Springer, Vol. 110: 127-133.

18. Jovanovic, J., Frohnapfel, B., Delgado, A. (2010): Viscous drag reduction with surface embedded grooves. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Springer, Vol. 110: 191-197

19. Frohnapfel, B., Jovanović, J., Hasegawa, Y., Kasagi, N. (2010): Theoretical considerations about near-wall turbulence and resulting flow control schemes. Proc. Appl. Math. Mech. 10: 743 – 746 / DOI 10.1002/pamm.201010352

20. Kumar,V., Frohnapfel, B., Jovanović, J., Breuer, M., Zuo, W., Hadzić, I., Lechner, R. (2009): Anisotropy Invariant Reynolds Stress Model of turbulence (AIRSM) and its application to attached and separated wall-bounded flows. Flow, Turbulence and Combustion, Vol. 83(1): 81-103

21. Frohnapfel, B., Lammers, P., Jovanović, J. (2008): The role of turbulent dissipation for flow control of near-wall turbulence, Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Vol. 98: 268-275.

22. Frohnapfel, B., Lammers, P., Jovanović, J., Delgado, A. (2008): Hydraulic model of the skin friction reduction with surface grooves. IUTAM Bookseries Vol. 7: 427-432

23. Frohnapfel, B., Jovanović, J., Delgado, A. (2007): Experimental investigation of turbulent drag reduction by surface embedded grooves. Journal of Fluid Mechanics, Vol. 590: 107-116

24. Frohnapfel, B., Lammers, P., Jovanović, J., Durst, F. (2007): Interpretation of the mechanism associated with turbulent drag reduction in terms of anisotropy invariants, Journal of Fluid Mechanics, Vol. 577: 457-466

25. Frohnapfel, B. (2007): Flow Control of Near-Wall Turbulence. Dissertation Universität Erlangen-Nürnberg (PhD thesis), Shaker Verlag, Aachen

26. Ewing, D., Frohnapfel, B., George, W.K., Pedersen, J.M., Westerweel, J. (2007): Two-point similarity in the round jet, Journal of Fluid Mechanics, Vol. 577: 309-330

27. Jovanović, J., Pashtrapanska, M., Frohnapfel, B., Durst, F., Koskinen, J. Koskinen, K. (2006): On the mechanism responsible for turbulent drag reduction by dilute addition of high polymers: theory, experiments, simulations and predictions, Journal of Fluids Engineering, Vol. 128(1): 118-130

28. Jovanović, J., Frohnapfel, B., Skaljic, E., Jovanović, M. (2006): Persistence of the laminar regime in a flat plate boundary layer at very high Reynolds number, Thermal Science, Vol. 10(2): 63-96

29. Jovanović, J., Frohnapfel B., Pashtrapanska M., Durst F. (2005): The effect of polymers on the dynamics of turbulence in a drag reduced flow, Thermal Science, Vol. 9(1): 13-41

30. Frohnapfel B., Jovanović, J., Pashtrapanska M., Durst F. (2005): Drag reduction in wall-bounded flows: the effect of polymers on the dynamics of turbulence, Proc. Appl. Math. Mech., Vol. 5: 545-546

Konferenzbeiträge:

1. Schumm*, T., Frohnapfel, B., Marocco, L. (2016), „Numerical simulation of the turbulent convective buoyant flow of sodium over a backward-facing step“, EUROTHERM 2016,  7th European Thermal-Sciences Conference Krakow, Poland.

2. Schumm, T, Magagnato*,F. and Frohnapfel, B.(2015), „Influence of a non-linear turbulence model extension on the predition of a turbulent flow over a bakcward-facing step“. ECCOMAS Congress 2016, European Congress on Computational Methods in Applied Sciences and Engineering, Crete Island, Greece.
3. Fink, V., Güttler, A., Frohnapfel, B. (2015): Experimental and numerical investigation of riblets ina fully developed turbulent channel flow. European Drag Reduction an Flow control Meeting EDRFCM 2015, March 23-26, Cambridge, UK

4. Stroh, A., Frohnapfel, B., Schlatter, P., Hasegawa, Y. (2015): Downstream development of locally controlled turbulent boundary layer. European Drag Reduction an Flow control Meeting EDRFCM 2015, March 23-26, Cambridge, UK

5. Gatti, D., Güttler, A., Frohnapfel, B., Tropea, C. (2015): Drag-reducing wall oscillations via dielectric elastomer actuators in low Reynolds number internal turbulent flows. European Drag Reduction an Flow control Meeting EDRFCM 2015, March 23-26, Cambridge, UK

6. Cocconi, G., Cimarelli, A., Frohnapfel, B., De Angelis, E. (2014): Numerical study of the shear-less turbulent/non-turbulent interface. iTi 2014 – Conference on Turbulence, September 21-24, Berinoro, Italy

7. Stroh, A., Hasegawa, Y., Schlatter, P., Frohnapfel, B. (2014): Influence of locally applied control on the spatial development of turbulent boundary layers. 10^th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements ETMM10, September 17-19, Marbella, Spain

8. Slotosch, A., Frohnapfel, B. (2014): The impact of numerical simulation strategies on the prediction of hemodynamic changes in an artery stenosis. 10^th European Fluid Mechanics Conference EFMC10, September 14-18, Copenhagen, Denmark

9. Gatti, D., Guettler, A., Quadrio, M., Schlaak, H.F., Tropea, C., Frohnapfel, B. (2014):  Dielectric Electroactive Polymers for drag-reducing wall oscillations in low-Reynolds number internal turbulent flows. 10^th European Fluid Mechanics Conference EFMC10, September 14-18, Copenhagen, Denmark

10. Guettler, A., Schickel, T., Damaske, T., Frohnapfel, B. (2014):   Accurate pressure measurements for the determination of skin friction drag variations in internal turbulent air flows. 10^th European Fluid Mechanics Conference EFMC10, September 14-18, Copenhagen, Denmark

11. Stroh, A., Fukagata, K., Schlatter, P., Frohnapfel, B. (2014): Suboptimal control of spatially developing turbulent boundary layers. 10^th European Fluid Mechanics Conference EFMC10, September 14-18, Copenhagen, Denmark

12. Hasegawa, Y., Stroh, A., Tuerk, S., Daschiel, G., Frohnapfel, B. (2014): Turbulent drag reduction over superhydrophobic surface, 1^st International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE 2014), April 13 – 16, 2014, Sendai, Japan

13. Slotosch, A., Gollub, M. and Frohnapfel, B. (2014): Flow Simulation through Arterial Stenosis under Prescribed Power Input. 7th World Congress on Biomechanics WCB, Boston, USA
14. Daschiel, G., Krieger, V., Frohnapfel, B., Jovanovic, J. (2013): Designing smart duct geometries for low friction losses. 66th Annual Meeting of the APS Division of Fluid Dynamics, November 24-26, 2013, Pittsburgh, Pennsylvania, USA

15. Daschiel, G., Frohnapfel, B., Jovanovic, J. (2013): Interpretation of the mechanism responsible for the persistence of a laminar region in turbulent duct flow. European Turbulence Conference ETC 14, Lyon, France

16. Gatti, D., Quadrio, M. Tropea, C., Frohnapfel, B. (2013): Effectiveness of spanwise forcing for turbulent drag reduction at higher Reynolds number. European Turbulence Conference ETC 14, Lyon, France

17. Hasegawa, Y., Frohnapfel, B., Quadrio, M. (2013): Direct Numerical Simulation of turbulent wall flows at constant power input. European Turbulence Conference ETC 14, Lyon, France

18. Stroh, A., Hasegawa, Y., Frohnapfel, B. (2013): Reactive control of spatially developing turbulent boundary layer. European Turbulence Conference ETC 14, Lyon, France

19. Hasegawa, Y., Tuerk, S., Stroh, A., Daschiel, G., Frohnapfel, B. (2013): Secondary motion in turbulent flows over superhydrophobic surfaces. The Eighth International Symposium on Turbulence and Shear Flow Phenomena, Portiers, France

20. Stroh, A., Hasegawa, Y., Frohnapfel, B. (2012): Arrangement of sensors and actuators in reactive turbulence control schemes. 9^th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, Thessaloniki, Greece

21. Daschiel, G., Jovanović, J., Frohnapfel, B. (2012): Numerical investigation of flow through a triangular duct: the coexistence of laminar and turbulent flow. 9^th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, Thessaloniki, Greece

22. Hasegawa, Y., Frohnapfel, B., Quadrio, M. (2012): Reevaluation of Control Performance for turbulent skin friction drag reduction in terms of energy savings and convenience. 9^th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, Thessaloniki, Greece

23. Daschiel, G., Baier, T., Saal, J., Frohnapfel, B. (2012): On the flow resistance of wide surface structures. 83^rd Annual Meeting of the International Association of Applied Mathematics and Mechanics, Darmstadt, Germany

24. Frohnapfel, B., Hasegawa, Y., Quadrio, M. (2012): Assessment of Flow Control Techniques in Terms of Time and Energy Savings. 83^rd Annual Meeting of the International Association of Applied Mathematics and Mechanics, Darmstadt, Germany

25. Stroh, A., Simon, R., Khujadze, G., Hasegawa, Y., Frohnapfel, B., Oberlack, M. (2012): Reactive control of spatially developing turbulent boundary layer. 83^rd Annual Meeting of the International Association of Applied Mathematics and Mechanics, Darmstadt, Germany

26. Türk, S., Daschiel, G., Hasegawa, Y., Frohnapfel, B. (2012): On the effect of superhydrophobic surfaces in turbulent channel flow. 83^rd Annual Meeting of the International Association of Applied Mathematics and Mechanics, Darmstadt, Germany

27. Cimarelli, A., Frohnapfel, B., Hasegawa, Y., De Angelis, E., Quadrio, M. (2012) Non-sinusoidal wall oscillation for drag reduction. 82^nd Annual Meeting of the International Association of Applied Mathematics and Mechanics, Darmstadt, Germany

28. Hasegawa, Y., Frohnapfel, B., Quadrio, M. (2011): On the evaluation of control performance in drag reducing flows. 64^th Annual Meeting of the APS Division of Fluid Dynamics, November 20-22, 2011, Baltimore, Maryland, USA

29. Hasegawa, Y., Frohnapfel, B., Kasagi, N. (2011): Effects of spatially varying slip length on friction drag reduction in wall turbulence. European Turbulence Conference ETC 13, Warsaw, Poland

30. Lammers, P., Jovanović, J., Frohnapfel, B., Delgado, A. (2011): Numerical experiments on self-control of wall turbulence by surface morphology, The Seventh International Symposium on Turbulence and Shear Flow Phenomena, Ottawa, Canada

31. Stroh, A., Frohnapfel, B., Hasegawa, Y., Kasagi, N., Tropea, C. (2011): The influence of frequency-limited and noise-contaminated sensing on reactive turbulence control schemes, The Seventh International Symposium on Turbulence and Shear Flow Phenomena, Ottawa, Canada

32. Frohnapfel, B., Stroh., A., Hasegawa, Y., Kasagi, N. (2010): Feedback control of wall turbulence for drag reduction with finite spatial and temporal resolution, 63^rd Annual Meeting of the APS Division of Fluid Dynamics, November 21-23, 2010, Long Beach, CA, USA

33. Criscione, A., Frohnapfel, B., Tropea, C. (2010): Preliminary Numerical Assessment of Turbulent Flow Control with Plasma Actuators, 17. DGLR-Fach-Symposium der STAB, 9.-10.11.2010, Berlin

34. Jovanovic, J., Lammers, P., Frohnapfel, B., Delgado, A. (2010): Self-stabilization of wall-bounded flows induced by wall geometry, 17. DGLR-Fach-Symposium der STAB, 9.-10.11.2010, Berlin

35. Frohnapfel, B., Hasegawa, Y., Kasagi, N. (2010): Flow control for skin friction drag reduction based on sensing of the streamwise wall-shear stress, The 8^th EUROMECH Fluid Mechanics Conference, Bad Reichenhall, Germany, book of abstracts: S4-30

36. Jovanovic, J., Frohnapfel, B., Hadzić ,I. (2010): The prediction of separated turbulent flows with the anisotropy invariant Reynolds Stress Model (AIRSM). International Symposium “Simulation of Wing and Nacelle Stall”, Braunschweig, Germany, Digital Proceedings

37. Jovanovic, J., Frohnapfel, B., Lienhart, H., Delgado, A. (2010): Experimental investigation of viscous drag reduction by flow control of laminar to turbulent transition using microgroove surface pattern. 8^th International ERCOFTAC Symposium on Engineering Turbulence Modeling and Measurements, Marseille, France, Conference Proceedings: 763-768

38. Frohnapfel, B., Jovanović, J., Hasegawa, Y., Kasagi, N. (2010): Theoretical considerations about near-wall turbulence and resulting flow control schemes. 81^st Annual Meeting of the International Association of Applied Mathematics and Mechanics, Karlsruhe, Germany

39. Frohnapfel, B., Criscione, A., Tropea, C., Hasegawa, Y., Kasagi, N. (2009): Preliminary numerical assessment of turbulent skin friction control with plasma actuators. American Physical Society, 62^nd Annual Meeting of the APS Division of Fluid Dynamics, abstract #GD.003

40. Frohnapfel, B., Hasegawa, Y., Kasagi, N., Grosse, S. (2009): Estimation of the spanwise wall shear stress based on upstream information for wall turbulence control. European Turbulence Conference ETC 12, Marburg, Germany, Digital Proceedings

41. Jovanovic, J., Frohnapfel, B., Breuer, M. (2009): Projection of the turbulence closure problem on the invariant triangle as the basis for improved predictions of complex flows. European Turbulence Conference ETC 12, Marburg, Germany, Digital Proceedings

42. Frohnapfel, B., Hasegawa, Y., Kasagi, N. (2009): Friction drag reduction through damping of the near-wall spanwise velocity component. The Sixth International Symposium on Turbulence and Shear Flow Phenomena, Seoul, Korea, Conference Proceedings: 749-754

43. Jovanović, J., Frohnapfel, B., Delgado, A. (2009): Progress in Drag Reduction Research. KATnetII Conference on Key Aerodynamic Technologies, Bremen, Germany

44. Velte, C., George, W., Tutkun, M., Frohnapfel, B. (2008): Measuring spectra using burst-mode LDA. American Physical Society, 61^st Annual Meeting of the APS Division of Fluid Dynamics, November 23-25, 2008 abstract #BC.008

45. Frohnapfel, B., Jovanović, J., Hadzić ,I. (2008): The prediction of turbulent flows with the anisotropy invariant Reynolds stress model (AIRSM), The 7^th JSME-KSME Thermal and Fluids Engineering Conference, Sapporo, Japan, CD-ROM Proceedings, Session 1: K113 (book of abstracts p. 25)

46. Frohnapfel, B., Hasegawa, Y., Kasagi, N. (2008): Flow control by turbulence state modifications in the near-wall region. XXII International Congress of Theoretical and Applied Mechanics, Adelaide, Australia, CD-ROM Proceedings, FM09:11064 (book of abstracts p. 127)

47. Frohnapfel, B., Jovanović, J., Delgado, A. (2007): Turbulent dissipation in drag reduced flows, Advances in Turbulence XI: Proceedings of the 11^th EUROMECH European Turbulence Conference, Porto, Portugal, Ed.: J. Palma, A. Silva Lopez; Springer, Berlin Heidelberg New York: 724

48. Frohnapfel B., Jovanović, J., Durst, F. (2006): The mechanism of turbulent drag reduction analyzed in the terminology of anisotropy invariants, Conference on Active Flow Control, Berlin, Germany, CD-ROM Proceedings

49. Frohnapfel, B., Lammers, P., Jovanović, J., Durst, F. (2006): New insights on passive flow control for turbulent drag reduction, Medimond Proceedings of the 5^th World Congress on Biomechanics, Munich, Germany: 465-468

50. Frohnapfel B., Jovanović, J., Pashtrapanska M., Durst F. (2005): Drag reduction in wall-bounded flows: the effect of polymers on the dynamics of turbulence, 76^th Annual Meeting of the International Association of Applied Mathematics and Mechanics, Luxembourg, Luxembourg

51. Frohnapfel, B., Jovanović, J., Skaljic, E., Jovanović, M. (2005): The stabilizing role of anisotropy in the free stream disturbances on boundary layer development, APS DFD Meeting, Chicago, USA, Bulletin of the American Physical Society, Vol. 50(9): 58

52. Frohnapfel, B., Jovanović, J., Pashtrapanska, M., Durst, F. (2004): The effect of polymers on the dynamics of turbulence in a drag reduced flow, APS DFD Meeting, Seattle, WA, USA, Bulletin of the American Physical Society, Series II, Vol. 49(9): 124

53. Frohnapfel, B., Pedersen, J.M., Johansson, T.G., Johannson P.B.V. (2003): Two-point similarity of the far axisymmetric jet, APS DFD Meeting, Chicago, IL, USA, Bulletin of the American Physical Society, Series II, Vol. 48(10): 53

54. Frohnapfel, B., Johansson P.B.V., Johansson, T.G., Eljack, E., Gomez, L. Gopala, V., Höglund, M., Lehugeur, B. (2003): Multi-point Similarity of the Axisymmetric Turbulent Far Jet and its Implication for the POD, Svenska mekanikdagar, Gothenburg, Sweden