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Mitarbeiter

Dr.-Ing. Alexander Stroh
Wissenschaftlicher Mitarbeiter
Raum: 601
Tel.: +49 721 608-43528
alexander stroh ∂does-not-exist.kit edu

Institut für Strömungsmechanik
Karlsruher Institut für Technologie
Kaiserstraße 10, Geb. 10.23
76131 Karlsruhe
Tel.: +49 721 608 42368
Fax: +49 721 608 45147

Publikationen


Experimental and numerical study on the effect mechanism of geometric parameters on jet impingement cooling in a limited space
Fu, H.; Luan, J.; Yang, L.; Luan, Y.; Magagnato, F.; Stroh, A.
2025. International Journal of Thermal Sciences, 207, 109384. doi:10.1016/j.ijthermalsci.2024.109384
Multi-objective optimization of jet impingement cooling structure with smooth target surface and enhanced target surface in a limited space
Fu, H.; Luan, J.; Yang, L.; Luan, Y.; Magagnato, F.; Stroh, A.
2024. International Communications in Heat and Mass Transfer, 159, 108192. doi:10.1016/j.icheatmasstransfer.2024.108192
Investigating the Shortcomings of the Flow Convergence Method for Quantification of Mitral Regurgitation in a Pulsatile In-Vitro Environment and with Computational Fluid Dynamics
Leister, R.; Karl, R.; Stroh, L.; Mereles, D.; Eden, M.; Neff, L.; de Simone, R.; Romano, G.; Kriegseis, J.; Karck, M.; Lichtenstern, C.; Frey, N.; Frohnapfel, B.; Stroh, A.; Engelhardt, S.
2025. Cardiovascular Engineering and Technology. doi:10.1007/s13239-024-00763-w
Spatio-temporal reconstruction of droplet impingement dynamics by means of color-coded glare points and deep learning
Dreisbach, M.; Kriegseis, J.; Stroh, A.
2024. Measurement Science and Technology. doi:10.1088/1361-6501/ad8771
Air cleaner prototype: Reduction of airborne viruses and effects of UV-C irradiation on virus concentration and RNA copy numbers considering modeled residence times and doses
Schulz, J.; Lochte, V. N.; Blessing, S.; Stroh, A.; Kriegseis, J.; Kemper, N.; Limbach, M.; Hahn, H.
2024. Aerosol Science and Technology, 1–13. doi:10.1080/02786826.2024.2412633
Characterization of anisotropic irregular roughness through direct numerical simulations
Yang, J.; Stroh, A.; Bagheri, S.; Frohnapfel, B.; Forooghi, P.
2024. 13th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2024, Montreal, Kanada, 25 -28 Juni 2024
Analysis of Separation in the Roughness Sublayer Using DNS Data and DANS/DEM Modelling of Roughness Effects
Chedevergne, F.; Yang, J.; Stroh, A.; Forooghi, P.
2024. Flow, Turbulence and Combustion. doi:10.1007/s10494-024-00585-9
Numerical investigation of bubble dynamics and flow boiling heat transfer in cylindrical micro-pin-fin heat exchangers
El Mellas, I.; Samkhaniani, N.; Falsetti, C.; Stroh, A.; Icardi, M.; Magnini, M.
2024. International Journal of Heat and Mass Transfer, 228, Art.-Nr.: 125620. doi:10.1016/j.ijheatmasstransfer.2024.125620
Assessment of Roughness Characterization Methods for Data-Driven Predictions
Yang, J.; Stroh, A.; Lee, S.; Bagheri, S.; Frohnapfel, B.; Forooghi, P.
2024. Flow, Turbulence and Combustion, 113 (2), 275–292. doi:10.1007/s10494-024-00549-z
Drop rebounding on heated micro-textured surfaces
Toprak, M.; Samkhaniani, N.; Stroh, A.
2024. International Journal of Heat and Mass Transfer, 227, Artk.Nr.: 125498. doi:10.1016/j.ijheatmasstransfer.2024.125498
Actively learning costly reward functions for reinforcement learning
Eberhard, A.; Metni, H.; Fahland, G.; Stroh, A.; Friederich, P.
2024. Machine Learning: Science and Technology, 5 (1), Art.-Nr.: 015055. doi:10.1088/2632-2153/ad33e0
Flow resistance over heterogeneous roughness made of spanwise-alternating sandpaper strips
Frohnapfel, B.; Deyn, L. von; Yang, J.; Neuhauser, J.; Stroh, A.; Örlü, R.; Gatti, D.
2024. Journal of Fluid Mechanics, 980, 1–35. doi:10.1017/jfm.2024.40
Machine learning for rapid discovery of laminar flow channel wall modifications that enhance heat transfer
Koide, Y.; Kaithakkal, A. J.; Schniewind, M.; Ladewig, B. P.; Stroh, A.; Friederich, P.
2024. APL Machine Learning, 2 (1), 016108. doi:10.1063/5.0187783
Understanding Inconsistencies in Thermohydraulic Characteristics Between Experimental and Numerical Data for Di Water Flow Through a Rectangular Microchannel
Schepperle, M.; Samkhaniani, N.; Magnini, M.; Woias, P.; Stroh, A.
2023. ASME Journal of Heat and Mass Transfer, 146 (3), 1–33. doi:10.1115/1.4064330
Adjoint Sensitivity Analysis for Heat Transfer Enhancements in Structured Channels
Kametani, Y.; Hasegawa, Y.; Stroh, A.; Müller, D.
2023. Proceedings of the 17th International Heat Transfer Conference, IHTC-17, August 14–18, 2023, Cape Town, South Africa, Art.-Nr.: 511
Prediction of equivalent sand-grain size and identification of drag-relevant scales of roughness – a data-driven approach
Yang, J.; Stroh, A.; Lee, S.; Bagheri, S.; Frohnapfel, B.; Forooghi, P.
2023. Journal of Fluid Mechanics, 975, A34. doi:10.1017/jfm.2023.881
Fluid-mechanical evaluation of different clutch geometries based on experimental and numerical investigations = Strömungsmechanische Bewertung verschiedener Kupplungsgeometrien anhand von experimentellen und numerischen Untersuchungen
Sax, C.; Stroh, A.; Leister, R.; Denda, C.; Bürk, P.; Dreisbach, M.; Kriegseis, J.
2023. Forschung im Ingenieurwesen, 87 (4), 1297–1306. doi:10.1007/s10010-023-00703-5
Drag Assessment for Boundary Layer Control Schemes with Mass Injection
Fahland, G.; Atzori, M.; Frede, A.; Stroh, A.; Frohnapfel, B.; Gatti, D.
2024. Flow, Turbulence and Combustion, 113 (1), 119–138. doi:10.1007/s10494-023-00462-x
Three-dimensional encoding of a gas–liquid interface by means of color-coded glare points
Dreisbach, M.; Blessing, S.; Brunn, A.; Michaux, F.; Stroh, A.; Kriegseis, J.
2023. Experiments in Fluids, 64 (3), 53. doi:10.1007/s00348-023-03592-0
A new point of view on skin-friction contributions in adverse-pressure-gradient turbulent boundary layers
Atzori, M.; Stroh, A.; Gatti, D.; Fukagata, K.; Vinuesa, R.; Schlatter, P.
2022. Proceedings of the 12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12) (2022) Osaka
A comparison of hydrodynamic and thermal properties of artificially generated against realistic rough surfaces
Yang, J.; Velandia, J.; Bansmer, S.; Stroh, A.; Forooghi, P.
2023. International Journal of Heat and Fluid Flow, 99, Art.-Nr.: 109093. doi:10.1016/j.ijheatfluidflow.2022.109093
An active learning approach for the prediction of hydrodynamic roughness properties
Yang, J.; Stroh, A.; Friederich, P.; Frohnapfel, B.; Forooghi, P.
2022. 12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022, Osaka, Japan, 19 - 22 Juli 2022
Three-Dimensional Detection Of A Gas-Liquid Interface By Means Of Oblique Colored Light Sources
Dreisbach, M.; Blessing, S.; Michaux, F.; Brunn, A.; Stroh, A.; Kriegseis, J.
2022. Proceedings of the 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics, Lisboa, P, July 11-14, 2022
Particle detection by means of neural networks and synthetic training data refinement in defocusing particle tracking velocimetry
Dreisbach, M.; Leister, R.; Probst, M.; Friederich, P.; Stroh, A.; Kriegseis, J.
2022. Measurement Science and Technology, 33 (12), Art.Nr. 124001. doi:10.1088/1361-6501/ac8a09
Global Friction of Uniform vs. Heterogeneous Sandpaper Roughness
Von Deyn, L. H.; Stroh, A.; Gatti, D.; Frohnapfel, B.
2022. Proceedings of Turbulence and Shear Flow Phenomena Conferences, 6 S
Implementation Aspects of Uniform Blowing in Turbulent Boundary Layers
Fahland, G.; Gatti, D.; Stroh, A.; Frohnapfel, B.
2022. 9th European Conference for Aeronautics and Space Science (Eucass 3AF 2022), Lille, F, June 27 - July 1, 2022., EDP Sciences. doi:10.13009/EUCASS2022-6123
Simulation of Single Vapor Bubble Condensation with Sharp Interface Mass Transfer Model
Samkhaniani, N.; Stroh, A.
2022. Thermo, 2 (3), 149–159. doi:10.3390/thermo2030012
The importance of initial thermal condition for simulation of single vapor bubble condensation
Samkhaniani, N.; Stroh, A.
2022. 17th UK Heat Transfer Conference (UKHTC2022), Manchester, UK, April 4-6, 2022
Thermohydraulic Characterization of DI Water Flow in Rectangular Microchannels By Means Of Experiments and Simulations
Schepperle, M.; Samkhaniani, N.; Woias, P.; Stroh, A.
2022. Proceedings of the 7th World Congress on Momentum, Heat and Mass Transfer, Avestia Publishing. doi:10.11159/icmfht22.174
Drop Impact Simulation on Heated Structured Surfaces
Samkhaniani, N.; Toprak, M.; Stroh, A.
2022. Proceedings of the 7th World Congress on Momentum, Heat and Mass Transfer, Avestia Publishing. doi:10.11159/icmfht22.163
Matched Wetting Behaviour of Material Pairings for Optical In-Situ Measurements in PEM Fuel Cells
Blessing, S.; Kippenberger, M.; Stroh, A.; Kriegseis, J.
2022. Proceedings of the 7th World Congress on Momentum, Heat and Mass Transfer, Paper No. ICMFHT 110, Avestia Publishing. doi:10.11159/icmfht22.110
Direct numerical simulation-based characterization of pseudo-random roughness in minimal channels
Yang, J.; Stroh, A.; Chung, D.; Forooghi, P.
2022. Journal of Fluid Mechanics, 941, Art.-Nr.: A47. doi:10.1017/jfm.2022.331
Spatial resolution issues in rough wall turbulence
Gatti, D.; Stroh, A.; Frohnapfel, B.; Örlü, R.
2022. Experiments in Fluids, 63 (3), 63. doi:10.1007/s00348-022-03412-x
Uniform blowing and suction applied to nonuniform adverse-pressure-gradient wing boundary layers
Atzori, M.; Vinuesa, R.; Stroh, A.; Gatti, D.; Frohnapfel, B.; Schlatter, P.
2021. Physical review fluids, 6 (11), Art.-Nr. 113904. doi:10.1103/PhysRevFluids.6.113904
Ridge-type roughness: from turbulent channel flow to internal combustion engine
Deyn, L. H. von; Schmidt, M.; Örlü, R.; Stroh, A.; Kriegseis, J.; Böhm, B.; Frohnapfel, B.
2022. Experiments in Fluids, 63 (1), 18. doi:10.1007/s00348-021-03353-x
Predicting drag on rough surfaces by transfer learning of empirical correlations
Lee, S.; Yang, J.; Forooghi, P.; Stroh, A.; Bagheri, S.
2022. Journal of fluid mechanics, 933, A18. doi:10.1017/jfm.2021.1041
Numerical simulation of drop impingement and bouncing on a heated hydrophobic surface
Samkhaniani, N.; Marschall, H.; Stroh, A.; Frohnapfel, B.; Wörner, M.
2021. Journal of Physics: Conference Series, 2116 (1), Art.-Nr.: 012073. doi:10.1088/1742-6596/2116/1/012073
Modelling spanwise heterogeneous roughness through a parametric forcing approach
Schäfer, K.; Stroh, A.; Forooghi, P.; Frohnapfel, B.
2022. Journal of Fluid Mechanics, 930, A7. doi:10.1017/jfm.2021.850
Study of irregular roughness in minimal channels
Yang, J.; Stroh, A.; Jakirlic, S.; Frohnapfel, B.; Forooghi, P.
2021. ETMM 13, International symposium on engineering, turbulence, modelling and measurement, 15.09.-17.09.2021
Parametric forcing approach for secondary motions formation over inhomogeneous rough surfaces
Stroh, A.; Schäfer, K.; Frohnapfel, B.; Forooghi, P.
2021. ETMM13 Proceedings
Particle Detection by means of Machine Learning in Defocusing PTV
Dreisbach, M.; Leister, R.; Probst, M.; Friederich, P.; Stroh, A.; Kriegseis, J.
2021. 14th International Symposium on Particle Image Velocimetry, Illinois Institute of Technology (Illinois Tech). doi:10.18409/ispiv.v1i1.182
Energy Budgets and Performance Development of Turbulent Boundary-Layer control on airfoils
Fahland, G.; Stroh, A.; Gatti, D.; Atzori, M.; Vinuesa, R.; Schlatter, P.; Frohnapfel, B.
2021. ETMM13 Proceedings
Investigation of Blowing and Suction for Turbulent Flow Control on Airfoils
Fahland, G.; Stroh, A.; Frohnapfel, B.; Atzori, M.; Vinuesa, R.; Schlatter, P.; Gatti, D.
2021. AIAA journal, 59 (11), 4422–4436. doi:10.2514/1.J060211
Bouncing drop impingement on heated hydrophobic surfaces
Samkhaniani, N.; Stroh, A.; Holzinger, M.; Marschall, H.; Frohnapfel, B.; Wörner, M.
2021. International journal of heat and mass transfer, 180, Art.-Nr.: 121777. doi:10.1016/j.ijheatmasstransfer.2021.121777
Prandtl’s Secondary Flows of the Second Kind. Problems of Description, Prediction, and Simulation
Nikitin, N. V.; Popelenskaya, N. V.; Stroh, A.
2021. Fluid Dynamics, 56 (4), 513–538. doi:10.1134/S0015462821040091
Channel flow with large longitudinal ribs
Castro, I. P.; Kim, J. W.; Stroh, A.; Lim, H. C.
2021. Journal of Fluid Mechanics, 915, Art.-Nr.: A92. doi:10.1017/jfm.2021.110
Comparison of Different Solvers and Geometry Representation Strategies for Dns of Rough Wall Channel Flow
Theobald, F.; Schäfer, K.; Yang, J.; Frohnapfel, B.; Stripf, M.; Forooghi, P.; Stroh, A.
2021. 14th WCCM & ECCOMAS Congress 2020 : virtual congress, 11-15 January, 2021 / IACM, ECCOMAS. Ed.: F. Chinesta, International Centre for Numerical Methods in Engineering (CIMNE). doi:10.23967/wccm-eccomas.2020.089
Simulation of Fluid Flow During Direct Synthesis of HO in a Microstructured Membrane Reactor
Trinkies, L.; Düll, A.; Deschner, B.; Stroh, A.; Kraut, M.; Dittmeyer, R.
2021. Chemie - Ingenieur - Technik, 93 (5), 789–795. doi:10.1002/cite.202000232
Parametric Study on Ridges Inducing Secondary Motions in Turbulent Channel Flow
Deyn, L. H. von; Gatti, D.; Frohnapfel, B.; Stroh, A.
2021. Proceedings in applied mathematics and mechanics, 20 (1), e202000139PAMM. doi:10.1002/pamm.202000139
Direct Numerical Simulations of a Turbulent Flow over Wall-Mounted Obstacles - A Comparison of Different Numerical Approaches
Schäfer, K.; Forooghi, P.; Straub, S.; Frohnapfel, B.; Stroh, A.
2020. Direct and Large Eddy Simulation XII. Ed.: M. García-Villalba, 91–96, Springer. doi:10.1007/978-3-030-42822-8_12
Aerodynamic Effects of Uniform Blowing and Suction on a NACA4412 Airfoil
Atzori, M.; Vinuesa, R.; Fahland, G.; Stroh, A.; Gatti, D.; Frohnapfel, B.; Schlatter, P.
2020. Flow, turbulence and combustion, 105, 735–759. doi:10.1007/s10494-020-00135-z
Secondary flow and heat transfer in turbulent flow over streamwise ridges
Stroh, A.; Schäfer, K.; Forooghi, P.; Frohnapfel, B.
2020. International journal of heat and fluid flow, 81, Article No.108518. doi:10.1016/j.ijheatfluidflow.2019.108518
Rearrangement of secondary flow over spanwise heterogeneous roughness
Stroh, A.; Schäfer, K.; Frohnapfel, B.; Forooghi, P.
2020. Journal of fluid mechanics, 885, R5. doi:10.1017/jfm.2019.1030
Heat Transfer Modeling of Confined Bubble Evaporation in a Microchannel
Sadir, S.; Talebi, M.; Woias, P.; Dittmeyer, R.; Frohnapfel, B.; Stroh, A.
2019. Proceedings in applied mathematics and mechanics, 19 (1, SI), Article no 201900449. doi:10.1002/pamm.201900449
Investigation of turbulent budgets in channels with secondary motions induced by streamwise-aligned ridges
Schäfer, K.; Stroh, A.; Frohnapfel, B.; Gatti, D.
2019. 11th International Symposium on Turbulence and Shear Flow Phenomena (TSFP11), Southampton, UK, July 30 - August 2, 2019
Turbulent channel flows with secondary motions: a concerted DNS and experimental study
Deyn, L. von; Örlü, R.; Stroh, A.; Gatti, D.; Kriegseis, J.; Frohnapfel, B.
2019. 11th International Symposium on Turbulence and Shear Flow Phenomena (TSFP11), Southampton, UK, July 30 - August 2, 2019
Secondary flow impact on velocity and thermal fields of a structured turbulent channel flow
Stroh, A.; Schafer, K.; Forooghi, P.; Frohnapfel, B.
2019. Proceedings of 14th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Wicklow, IR, July 22-24, 2019
Investigation of water microchannel boiling flow regimes using electrical sensing elements along a single microchannel
Talebi, M.; Sadir, S.; Cobry, K.; Stroh, A.; Dittmeyer, R.; Woias, P.
2019. Measurement science and technology, 30 (12), Article: 125301. doi:10.1088/1361-6501/ab38f6
Combined direct numerical simulation and long-wave simulation of a liquid film sheared by a turbulent gas flow in a channel
Bender, A.; Stroh, A.; Frohnapfel, B.; Stephan, P.; Gambaryan-Roisman, T.
2019. Physics of fluids, 31 (2), Art.-Nr.: 022103. doi:10.1063/1.5064423
Predicting Turbulent Spectra in Drag-reduced Flows
Gatti, D.; Stroh, A.; Frohnapfel, B.; Hasegawa, Y.
2018. Flow, turbulence and combustion, 100 (4), 1081–1099. doi:10.1007/s10494-018-9920-8
The instantaneous structure of secondary flows in turbulent boundary layers
Vanderwel, C.; Stroh, A.; Kriegseis, J.; Frohnapfel, B.; Ganapathisubramani, B.
2019. Journal of fluid mechanics, 862, 845–870. doi:10.1017/jfm.2018.955
Numerical investigation of vapor bubble growth in a rectangular microchannel
Stroh, A.; Frohnapfel, B.; Dittmeyer, R.
2018. 16th International Heat Transfer Conference (IHTC16), Beijing, CHN, August 10-15, 2018, 907–915, Begell House Publishers
Rearrangement of secondary vortices over spanwise heterogeneous roughness
Stroh, A.; Forooghi, P.; Frohnapfel, B.
2018. 12th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM12), Montpellier, F, September 26-28, 2018
Direct numerical simulation of flow over dissimilar, randomly distributed roughness elements: A systematic study on the effect of surface morphology on turbulence
Forooghi, P.; Stroh, A.; Schlatter, P.; Frohnapfel, B.
2018. Physical review fluids, 3 (4), Art. Nr.: 044605. doi:10.1103/PhysRevFluids.3.044605
Drop bouncing by micro-grooves
Fink, V.; Cai, X.; Stroh, A.; Bernard, R.; Kriegseis, J.; Frohnapfel, B.; Marschall, H.; Wörner, M.
2018. International journal of heat and fluid flow, 70, 271–278. doi:10.1016/j.ijheatfluidflow.2018.02.014
Reactive Control of Turbulent Wall-Bounded Flows for Skin Friction Drag Reduction. Dissertation
Stroh, A.
2018. KIT Scientific Publishing. doi:10.5445/KSP/1000080529
Vapor bubble growth in a rectangular microchannel
Stroh, A.; Sadir, S.; Dittmeyer, R.; Frohnapfel, B.
2018. 89th GAMM Annual Meeting, München, 19th - 23rd March 2018
Toward a Universal Roughness Correlation
Forooghi, P.; Stroh, A.; Magagnato, F.; Jakirlic, S.; Frohnapfel, B.
2017. Journal of fluids engineering, 139 (12), Art. Nr.: 121201. doi:10.1115/1.4037280
Flow over a surface with multiscale randomly distributed roughness
Forooghi, P.; Stroh, A.; Krumbein, B.; Magagnato, F.; Jakirlic, S.; Frohnapfel, B.
2017. Flow, turbulence and combustion / Special issue: engineering turbulence modelling and measurements, 99 (3-4), 551–990
Control of Spatially Developing Turbulent Boundary Layers for Skin Friction Drag Reduction
Stroh, A.
2016. High Performance Computing in Science and Engineering ´16 : Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2016. Ed.: W.E. Nagel, 399–411, Springer. doi:10.1007/978-3-319-47066-5_27
Reactive Control of Spatially Developing Turbulent Boundary Layer
Stroh, A.; Hasegawa, Y.; Frohnapfel, B.
2013. 14th European Turbulence Conference, Lyon, France, September 1-4, 2013
Secondary Motion in Turbulent Flows Over Superhydrophobic Surfaces
Hasegawa*, Y.; Tuerk, S.; Stroh, A.; Daschiel, G.; Frohnapfel, B.
2013. 8th International Symposium on turbulence and shear flow phenomena (TSFP8), Poitiers, France, August 28-30, 2013
Influence of locally applied control on the spatial development of turbulent boundary layers
Stroh, A.; Hasegawa, Y.; Schlatter, P.; Frohnapfel, B.
2014. 10th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, Marbella, Spain, Septemtember 17-19, 2014
Wave-length-dependent rearrangement of secondary vortices over superhydrophobic surfaces with streamwise grooves
Stroh, A.; Hasegawa, Y.; Kriegseis, J.; Frohnapfel, B.
2015. 9th International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9), The University of Melbourne, Australia, June 30 - July 3 (2015)
Influence of drag reducing near-wall turbulence control on spectral properties of Reynolds shear stress
Stroh, A.; Gatti, D.; Hasegawa, Y.; Frohnapfel, B.
2016. 11th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements, September 21-23, 2016, Palermo, Italy
Reactive Control of Turbulent Wall-Bounded Flows for Skin Friction Drag Reduction. Dissertation
Stroh, A.
2015. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000061829
Secondary vortices over surfaces with spanwise varying drag
Stroh, A.; Hasegawa, Y.; Kriegseis, J.; Frohnapfel, B.
2016. Journal of turbulence, 17 (12), 1142–1158. doi:10.1080/14685248.2016.1235277
Global effect of local skin friction drag reduction in spatially developing turbulent boundary layer
Stroh, A.; Hasegawa, Y.; Schlatter, P.; Frohnapfel, B.
2016. Journal of fluid mechanics, 805, 303–321. doi:10.1017/jfm.2016.545
A comparison of opposition control in turbulent boundary layer and turbulent channel flow
Stroh, A.; Frohnapfel, B.; Schlatter, P.; Hasegawa, Y.
2015. Physics of Fluids, 27 (7), Art.Nr. 075101. doi:10.1063/1.4923234
Turbulent flow over superhydrophobic surfaces with streamwise grooves
Türk, S.; Daschiel, G.; Stroh, A.; Hasegawa, Y.; Frohnapfel, B.
2014. Journal of Fluid Mechanics, 747 (1), 186–217. doi:10.1017/jfm.2014.137
The influence of frequency-limited and noise-contaminated sensing on reactive turbulence control schemes
Stroh, A.; Frohnapfel, B.; Hasegawa, Y.; Kasagi, N.; Tropea, C.
2012. Journal of Turbulence, 13 (16), N16. doi:10.1080/14685248.2012.679343

Projekte

Reactive control of turbulent wall-bounded flows for skin friction drag reduction

Publikationen

Fachzeitschriften und Büchern:

1. Stroh, A., Hasegawa, Y., Schlatter, P. and Frohnapfel, B. (2016): Global effect of local skin friction drag reduction in spatially developing turbulent boundary layer, Journal of Fluid Mechanics, submitted, arXiv:1603.02427.

2. Stroh, A., Hasegawa, Y., Kriegseis, J. and Frohnapfel, B. (2016): Secondary vortices over surfaces with spanwise varying drag, Journal of Turbulence, submitted.

3. Stroh, A., Frohnapfel, B., Schlatter, P. and Hasegawa, Y.: A comparison of opposition control in turbulent boundary layer and turbulent channel flow. Physics of Fluids 27, 075101 (2015), doi:10.1063/1.4923234.

4. Tuerk, S., Daschiel, G., Stroh, A., Hasegawa, Y., Frohnapfel, B.: Turbulent Flow over Superhydrophobic Surfaces with Streamwise Grooves, Journal of Fluid Mechanics, volume 747, pp. 186-217 (2014), doi:10.1017/jfm.2014.137.

5. Stroh, A., Frohnapfel, B., Hasegawa Y., Kasagi, N., Tropea, C.: The influence of frequency limited and noise contaminated sensing on reactive turbulence control schemes, Journal of Turbulence 13 (2012), pp. 1-15.

 

Konferenzbeiträge: *Vortragender

 1. Stroh*, A., Gatti, D., Hasegawa, Y. and Frohnapfel, B.: Influence of drag reducing near-wall turbulence control on spectral properties of Reynolds shear stress, 11th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM11), Palermo, Italy, 21-23 Sept. (2016).

2. Stroh*, A., Forooghi, P., Kriegseis, J. and Frohnapfel, B.: Secondary vortices over spanwise heterogeneous roughness. 24th International Congress of Theoretical and Applied Mechanics (ICTAM 2016), Montreal, Canada, Aug. 21-26 (2016).

3. Stroh, A., Hasegawa*, Y., Kriegseis, J. and Frohnapfel, B.: Wave-length-dependent rearrangement of secondary vortices over superhydrophobic surfaces with streamwise grooves. 9th International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9), The University of Melbourne, Australia, June 30 - July 3 (2015).

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

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

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

7. Hasegawa*, Y., Stroh, A., Tuerk, S., Daschiel, G. & Frohnapfel, B.: Turbulent drag reduction over superhydrophobic surface, Computational Engineering and Science for Safety and Environmental Problems, April 13-16, Sendai, Japan (2014).

8. Hasegawa*, Y., Tuerk, S., Stroh, A., Daschiel, G. & Frohnapfel, B.: Secondary Motion in Turbulent Flows Over Superhydrophobic Surfaces, 8th Int. Symp. on Turbulent Shear Flow Phenomena (TSFP8), Poitiers, France, Aug. 28-30 (2013).

9. Stroh*. A., Hasegawa, Y. & Frohnapfel, B.: Reactive Control of Spatially Developing Turbulent Boundary Layer, 14th European Turbulence Conference, Lyon, France, Sept. 1-4 (2013).

10. Stroh*, A., Frohnapfel, B., Hasegawa Y.: Arrangement of sensors and actuators in reactive turbulence control schemes,  9th International ERCOFTAC Symposium on Engineering Turbulence Modeling and Measurements (ETMM9), Thessaloniki, Greece, June 6-8 (2012).

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

12. Stroh*, A., Frohnapfel, B., Hasegawa, Y., Kasagi, N. & Tropea, C.: The Influence of sensors with limited frequency resolution and noise pollution in reactive control schemes, 6th Int. Symp. on Turbulence and Shear Flow Phenomena (TSFP7), Ottawa, Canada, July 28-31 (2011).

13. Frohnapfel*, B., Stroh, A., Hasegawa, Y., Kasagi, N.: Feedback control of wall turbulence for drag reduction with finite spatial and temporal resolution. American Physical Society, 63rd Annual Meeting of the APS Division of Fluid Dynamics, (2010).

 

Betreute studentische Arbeiten

1. Masterarbeit von Rene Simon (2011): “Reactive flow control in turbulent boundary layers”
2. Masterarbeit von Sebastian Türk (2011): “Flow over structured surfaces with and without superhydrophobic properties”
3. Bachelorarbeit von Xing Ge (2013): “Reactive turbulence control with finite size actuators”
4. Bachelorarbeit von Arjun Ravi (2013): “Influence of domain size on numerical simulation of reactive control schemes”
5. Internship project by Juan Ignacio Polanco (2013): “Reactive control for skin friction drag reduction in turbulent flows using wall-placed sensors”