UDE Frank Preuß

Prof. Dr. Khadijeh Mohri

Contact details

 

Carl-Benz Straße 199
47057 Duisburg
Room: NETZ 1.10


Phone: +49 (0) 203 379 8124
E-mail: khadijeh.mohri [at] uni-due.de

Research interests

 
  • ​Development and application of tomographic techniques in energy and process technology
  • Tomographic imaging using multi-simultaneous measurements (TIMes)
  • Three-dimensional diagnostics of non-reactive and reactive flows including flame-based nanoparticle synthesis processes
  • Development of the Evolutionary reconstruction technique (ERT)
  • Development of the Background-oriented schlieren tomography (BOST)

Scientific career

since 2016                    
Professor (W1) at the University of Duisburg-Essen

2014 - 2015                    
Scientific researcher at the Chair of Fluid Dynamics - Institute for Combustion and Gas Dynamics, University of Duisburg-Essen. Post doctorate work in flame tomography with Prof. Dr. Ing. Andreas Kempf

2008 - 2011                    
Scientific researcher at the Institute for Combustion and Gas dynamics - Reactive Fluids, University of Duisburg-Essen. Post doctorate work in laser-induced fluorescence imaging with Prof. Dr. Christof Schulz

2011                    
Visiting scholar at Stanford University USA, toluene laser-induced fluorescence imaging in an expansion shock tube, with Prof. Ron Hanson

2004 - 2008                    
Doctoral thesis at Imperial College London, UK with Prof. Richard Hillier.
Title: Supersonic flow over rectangular-section annular cavities
- Laminar and turbulent flow simulations
- Experimental Schlieren visualization of the flow and time-averaged surface pressure measurements

2000 - 2004                    
First Class Honours Masters (MEng) in Aerospace Engineering, Queen Mary University of London, UK
- Group project: Aerodynamics of racing bicycles, design of the wheels and the full bicylce test rig
- Individual project: Effects of wing tip geometry and blowing on drag characteristics of two-dimensional wing sections in incompressible flows

Memberships and scientific activities

  • Member of The Combustion Institute - German section
  • Member of the Center for Nanointegration Duisburg-Essen (CENIDE)
  • Member of the 5th Global Young Faculty (2017 - 2019), an initiative of the Stiftung Mercator in coorperation with the University Alliance Ruhr Research Centre, coordinated by the Mercator Research Center Ruhr in Essen
  • Reviewer for several scientific journals, including: AIAA, Applied Optics, Applied Physics, Combustion and Flame, Experiments in Fluids, Optical Engineering, Optical Society of America, Progress in Energy and Combustion (PECS), Royal Aeronautical Journal, Shock Waves 
  • Invited talk at Technical University of Darmstadt, Germany (2018), title: Tomography in energy and process technology
  • Invited talk at University of Applied Sciences Darmstadt, Germany (2019), title: Computed tomography for instantaneous 3D information to get the full picture
  • Invited talk at the Gordon Research Conference - Laser Diagnostics in Energy and Combustion (2019), title: Flame tomography based on multi-simultaneous measurements and best practice in assessing volumetric reconstructions
  • Guest editor at Energies journal (2019), special issue title: Tomographic and volumetric diagnostics in flames
  • Research visit invitation from Nanjing University of Science and Technology, China (2019)

Reviewed journal publications

Link to Google-Researcher-Profile

  1. F. J. W. A. Martins, C. T. Foo, A. Unterberger, S. Karaminejad, T. Endres, and K. Mohri. Analyzing 3D fields of refractive index, emission and temperature in spray-flame nanoparticle synthesis via tomographic imaging using multi-simultaneous measurements (TIMes). Applications in Energy and Combustion Science, 16, pp. 100213, doi: 10.1016/j.jaecs.2023.100213 (2023).
  2. A. Unterberger, F. J. W. A. Martins, and K. Mohri. Coupled 3D evolutionary reconstruction technique for multi-simultaneous measurements. Fuel, 346, pp. 128336, doi: 10.1016/j.fuel.2023.128336 (2023).
  3. S. J. Grauer*, K. Mohri*, T. Yu, H. Liu, and W. Cai. Volumetric emission tomography for combustion processes. Progress in Energy and Combustion Science, 94, pp. 101024, doi: 10.1016/j.pecs.2022.101024 (2023). (*joint first authors)
  4. F. J. W. A. Martins, A. Unterberger, and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) of emission and refractive index 3D fields in turbulent flames. Proceedings of the Combustion Institute, 39(1), pp. 1405-1413, doi: 10.1016/j.proci.2022.09.007 (2023).
  5. C. T. Foo, A. Unterberger, F. J. W. A. Martins, M. M. Prenting, C. Schulz, and K. Mohri. Investigating spray flames for nanoparticle synthesis via tomographic imaging using multi-simultaneous measurements (TIMes) of emission. Optics Express, 30(9), pp. 15524-15545, doi: 10.1364/OE.449269 (2022).
  6. G. Liu, M. Asif, K. Mohri, C. Schulz, T. Dreier, T. Endres and J. Menser. In situ measurement of gas-borne silicon nanoparticle volume fraction and temperature by spatially and spectrally line-resolved attenuation and emission imaging. Powder Technology, 396, pp. 535-541, doi: 10.1016/j.powtec.2021.11.017 (2022).
  7. A. Unterberger and K. Mohri. Evolutionary background-oriented schlieren tomography with self-adaptive parameter heuristics. Optics Express, 30(6), pp. 8592-8614, doi: 10.1364/OE.450036 (2022).
  8. G. Liu, M. Asif, J. Menser, T. Dreier, K. Mohri, C. Schulz and T. Endres. Spatial distribution of gas-phase synthesized germanium nanoparticle volume-fraction and temperature using combined in situ line-of-sight emission and extinction spectroscopy. Optics Express, 29(6), pp. 8387-8406, doi: 10.1364/OE.418922 (2021).
  9. C. T. Foo, A. Unterberger, J. Menser and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) for flame emission reconstructions. Optics Express, 29(1), pp. 244-255, doi: 10.1364/OE.412048 (2021).
  10. E. Boigné, N. R. Bennett, A. Wang, K. Mohri and M. Ihme. Simultaneous in-situ measurements of gas temperature and pyrolysis of biomass smoldering via X-ray computed tomoraphy. Proceedings of the Combustion Institute, 38(3), pp. 3899-3907, doi: 10.1016/j.proci.2020.06.070 (2020).
  11. A. Unterberger, A. Kempf and K. Mohri. 3D evolutionary reconstruction of scalar fields in the gas-phase. Energies, 12(11), doi: 10.3390/en12112075 (2019).
  12. A. Unterberger, J. Menser, A. Kempf and K. Mohri. Evolutionary camera pose estimation of a multi-camera setup for computed tomography. Proceedings of the IEEE International Conference on Image Processing, Taipei, Taiwan, doi: 10.1109/ICIP.2019.8804398 (2019).
  13. A. Unterberger, M. Röder, A. Giese, A. Al-Halbouni, A. Kempf and K. Mohri. 3D instantaneous reconstruction of turbulent industrial flames using Computed Tomography of Chemiluminescence (CTC). Journal of Combustion special issue on Coal and Biomass Combustion, doi: 10.1155/2018/5373829 (2018).
  14. S. J. Grauer, A. Unterberger, A. Rittler, K. J. Daun, A. M. Kempf and K. Mohri. Instantaneous 3D flame imaging by backgrounded-orientated schlieren tomography. Combustion and Flame, 196, pp. 284-299, doi: 10.1016/j.combustflame.2018.06.022 (2018).
  15. S. J. Grauer, A. Unterberger, K. J. Daun and K. Mohri. Demonstration of instantaneous 3D flame reconstruction by background-orientated schlieren tomography. Proceedings of the Combustion Institute - Canadian Section, Spring technical meeting, Toronto, Canada (2018).
  16. K. Mohri, S. Görs, J. Schoeler, A. Rittler, T. Dreier, C. Schulz and A. Kempf. Instantaneous 3D-imaging of highly turbulent flames using Computed Tomography of Chemiluminescence. Applied Optics, 56(26), pp. 7385-7395, doi: 10.1364/AO.56.007385 (2017).
    To download, please click here. © 2017 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
  17. A. Wohler, K. Mohri, C. Schulz and B. Weigand. Mixing processes in a compressible accelerated nozzle flow with blunt-body wakes. AIAA Journal, 52(3), pp. 559-568, doi: 10.2514/1.J052493 (2014).
  18. K. Mohri and R. Hillier. Computational and experimental study of supersonic flow over axisymmetric cavities. Shock Waves, 21, pp. 175-191, doi: 10.1007/s00193-011-0312-4 (2011).
  19. K. Mohri, M. Luong, G. Vanhove, T. Dreier and C. Schulz. Imaging of the Oxygen distribution in an isothermal turbulent free jet using two-color toluene LIF imaging. Applied Physics B, 103, pp. 707-715, doi: 10.1007/s00340-011-4564-6 (2011).

Conference contributions

  1. M. Röder, P. Pietsch, A. Unterberger, F. J. W. A. Martins, A. Giese and K. Mohri. Tomographische 3D-Rekonstruktion der Chemilumineszenz von industriellen Hochtemperatur-Verbrennungsprozessen. Oral presentation and paper, 31. Deutscher Flammentag, Berlin, Germany (Sep. 2023).
  2. M. Röder, P. Pietsch, A. Unterberger, F. J. W. A. Martins, A. Giese and K. Mohri. Multi-Camera System for 3D Tomographic Reconstruction of Chemiluminescence in Industrial-Scale High-Temperature Combustion Processes. Poster and paper, 11th European Combustion Meeting (ECM2023), Rouen, France (Apr. 2023).
  3. C. T. Foo, F. J. W. A. Martins, A. Unterberger and K. Mohri. Volumetric imaging of the SpraySyn flame via tomographic reconstructions of emission and refractive index using multi-simultaneous measurements for investigation of nanoparticle synthesis from flame spray pyrolysis. Poster, 3rd CENIDE Conference, Bergisch Gladbach, Germany (May 2023).
  4. F. J. W. A. Martins, A. Unterberger and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) of emission and refractive index 3D fields in turbulent flames. Oral presentation and paper, 39th International Symposium on Combustion, Vancouver, Canada (Jul. 2022).
  5. A. Unterberger, F. J. W. A. Martins and K. Mohri. Coupled 3D evolutionary reconstruction of refractive index and CH* fields for turbulent combustion analysis. Poster, 39th International Symposium on Combustion, Vancouver, Canada (Jul. 2022).
  6. F. J. W. A. Martins, C. T. Foo, A. Unterberger and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) for single-shot emission reconstructions in turbulent spray flames. Oral presentation and paper, 20th International Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics, Lisbon, Portugal (Jul. 2022).
  7. K. Mohri. Volumetric (reactive) flow diagnostics. Oral presentation (invited), Conference on Lasers and Electro-Optics (CLEO), San Jose, USA (May 2022).
  8. J. Menser, A. Unterberger and K. Mohri. Convolutional neural networks for camera calibration requirements in flame tomography. Oral presentation and paper, 29th Deutscher Flammentag (German flame day), Bochum, Germany (Sep. 2019).
  9. A. Unterberger, A. Kempf and K. Mohri. Phantom studies on a new evolutionary reconstruction technique applied to 3D scalar fields in the gas-phase. Poster, 9th European Combustion meeting, Lisbon, Portugal (Apr. 2019).
  10. J. Menser and K. Mohri. Flame tomography based on multi-simultaneous measurements and best practice on assessing volumetric reconstruction. Oral presentation (invited), Gordon Research Conference - Laser Diagnostics in Energy and Combustion, Les Diablerets, Switzerland (June 2019).
  11. A. Unterbeger, J. Menser, A. Kempf and K. Mohri. 3D evolutionary reconstruction of scalar fields: phantom study and application to a stratified flame. Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  12. S. J. Grauer, A. Unterberger, K. J. Daun and K. Mohri. Demonstration of instantaneous 3D flame reconstruction by background-orientated schlieren tomography. Oral presentation, Combustion Institute (Canadian Section) - Spring Technical Meeting, Toronto, Canada (2018).
  13. K. Mohri, J. Menser, A. Kempf, J. Trabold, S. Walther and D. Geyer. Instantaneous 3D imaging of the Temperature Controlled Piloted Jet Burner (TCPJB) flames using computed tomography of chemiluminescence (CTC). Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  14. S. J. Grauer, A. Unterberger, T. A. Sipkens, A. M. Kempf, K. J. Daun. and K. Mohri. Background-oriented schlieren tomography for instantaneous 3D combustion imaging. Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  15. J. Menser, A. Unterberger, L. Cifuentec, A. Kempf and K. Mohri. Quantifying flame tomography reconstructions with the aid of DNS phantom data. Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  16. J. Menser, A. Unterberger, A. Kemp and K. Mohri. Instantaneous 3D imaging of turbulent stratified methane/air flames using computed tomography of chemiluminescence. Oral presentation and paper, 5th International Conference on Experimental Fluid Mechanics (ICEFM), Munich, Germany (Jul. 2018).
  17. J. Menser, A. Unterberger, S. Grauer, A. Kempf and K. Mohri. Volumetric imaging of turbulent stratified premixed flames using tomography, background-orientated schlieren and high-speed imaging. Poster, Center for Nanointegration Duisburg-Essen (CENIDE) conference, Bergische Gladbach, Germany (Feb. 2018).
  18. K. Mohri, M. Röder, A. Giese, A. Al-Halbouni and A. Kempf. 3D instantaneous reconstruction of a turbulent industrial burner flame using Computed Tomography of Chemiluminescence (CTC). Oral presentation, 3rd General Meeting and Workshop on SECs in Industry COST Action 1404 of the European Cooperation in Science and Technology, Prague, Czech Republic (Oct. 2017).
  19. K. Mohri, M. Röder, A. Giese, A. Al-Halbouni and A. Kempf. Computed Tomography of Chemiluminescence (CTC): reconstructing turbulent laboratory and industrial flames. Poster and paper, 28th Deutscher Flammentag (German flame day), Darmstadt, Germany (Sep. 2017).
  20. J. Verbeke, A. Rittler, S. Görs, C. Schulz, A. Kempf and K. Mohri. Computed Tomography of Chemiluminescence (CTC): Effect of out-of-plane views on the quality of three-dimensional reconstruction of a turbulent swirl flame. Poster and paper, 8th European Combustion Meeting, Dubrovnik, Croatia (Apr. 2017).
  21. K. Mohri, S. Görs, J. Schöler, T. Dreier, C. Schulz and A. Kempf. Tomographic reconstruction of the highly turbulent TECFLAM and unsteady Bunsen flames’ 3D instantaneous chemiluminescence field. Poster, 36th International Symposium on Combustion, Seoul, Korea (Aug. 2016).
  22. K. Mohri and A. Kempf. Computed tomography of chemiluminescence in asymmetric unsteady premixed flames. Poster and paper, 27th Deutscher Flammentag (German flame day), Clausthal, Germany (Sep. 2015).
  23. K. Mohri and A. Kempf. Computed tomography of chemiluminescence for 3D reconstructions of quasi-steady premixed flames. Oral presentation and paper, Combustion Institute (British section) meeting, Imperial College London, United Kingdom (2014).
  24. K. Mohri, A. Wohler, B. Weigand and C. Schulz. Toluene laser-induced fluorescence (LIF) imaging of supersonic flow within a diverging duct with injectors in the supersonic region. Oral presentation and paper, 29th International Symposium on Shock Waves, Madison, USA (July 2013).
  25. V. Miller, M. Gamba, M. G. Mungal and R. K. Hanson, K. Mohri and C. Schulz. Toluene laser-induced fluorescence imaging of compressible flows in an expansion tube. American Physical Society, Division of Fluid Dynamics (Nov. 2011).
  26. K. Mohri, A. Wohler, B. Weigand and C. Schulz. Toluene laser-induced fluorescence (LIF) imaging of supersonic flow within a diverging duct. Oral presentation and paper, 28th International Symposium on Shock Waves, Manchester (July 2011).
  27. A. Wohler, K. Mohri, C. Schulz and B. Weigand. Flow structures in subsonic-to-supersonic mixing processes using different injector geometries. Oral presentation and paper, 4th European Conference for Aerospace Sciences, St. Petersburg, Russia (June 2011).
  28. K. Mohri, C. Meffert, T. Dreier, G. Vanhove, G. Ramirez, M. Luong, and C. Schulz. Laser induced fluorescence imaging of oxygen distribution in inhomogenously mixed, isothermal turbulent flows. Poster, Gordon Research Conference - Laser Diagnostics in Combustion, Waterville village, USA (Aug. 2009).
  29. C. Meffert, K. Mohri, T. Dreier and C. Schulz. High-repetition-rate UV-LIF measurements of toluene seeded gaseous flows. Poster, Gordon Research Conference - Laser Diagnostics in Combustion, Waterville Village, USA (Aug. 2009).
  30. K. Mohri and R. Hillier. Supersonic flow over axisymmetric cavities, P1570. Oral presentation and paper, 26th International Symposium on Shock Waves, Göttingen, Germany (July 2007).
  31. K. Mohri and R. Hillier. Supersonic flow over axisymmetric cavities. Oral presentation and paper, 37th Fluid Dynamics Conference and Exhibit, Miami, USA (June 2007).