Passive scalar interface in a spatially evolving mixing layer (A. Attili and D. Denker)

Quartz nozzle sampling (D. Felsmann)

Dissipation element analysis of a planar diffusion flame (D. Denker)

Turbulent/non-turbulent interface in a temporally evolving jet (D. Denker)

Dissipation elements crossing a flame front (D. Denker and B. Hentschel)

Particle laden flow (E. Varea)

Turbulent flame surface in non-premixed methane jet flame (D. Denker)

DNS of primary break up (M. Bode)

Diffusion flame in a slot Bunsen burner (S. Kruse)

Various quantities in spatially evolving jet diffusion flame (D. Denker)

Dr. Yihua Ren


              Institut für Technische Verbrennung
              RWTH Aachen University
              Templergraben 64
              52056 Aachen

Telefon: +49 (0)241 80-94624
Telefax: +49 (0)241 80-92923

Büro:  209 (2. Etage)

Research Interests

  • In-situ laser diagnostics of multiphase flame environment using Phase-Selective Laser-Induced Breakdown Spectroscopy (PS-LIBS), spontaneous Raman scattering (RS), Laser-Induced Breakdown Spectroscopy (LIBS), Laser-Induced Fluorescence (LII), 3D Tomography Reconstruction, Tunable Diode Laser Absorption Spectroscopy (TDLAS).
  • Molecular dynamics Simulations of nanocomposites formation.
  • Flame aerosol synthesis of metal-oxide nanoparticles for energy storage materials, photocatalysts, nanocatalysts.
  • Electric field manipulation of combustion, Electrohydrodynamic flame instability. In-situ laser diagnostic electric field measurement by Second Harmonic Generation (SHG).


  • Yihua Ren, Wei Cui, Heinz Pitsch and Shuiqing Li. Experimental and numerical studies on electric field distribution of a premixed stagnation flame under DC power supply. Combustion and Flame, vol. 215, pages 103-112, 2020.
  • Yihua Ren, Yiyang Zhang and Shuiqing Li. Simultaneous single-shot two-dimensional imaging of nanoparticles and radicals in turbulent reactive flows. Physical Review Applied, vol. 13 no. 4, page 044002, 2020.
  • Yihua Ren. In-situ laser diagnostic of nanoparticle formation and transport by phase-selective laser-induced breakdown spectroscopy. In Laser Applications to Chemical, Security and Environmental Analysis, pages LM3A-1. Optical Society of America, 2020.
  • Yihua Ren, Ke Ran, Stephan Kruse, Joachim Mayer and Heinz Pitsch. Flame synthesis of carbon metal-oxide nanocomposites in a counterflow burner. Proceedings of the Combustion Institute, vol. 38 no. 1, pages 1269-1277, 2021.
  • Jinguo Sun, Yihua Ren, Yong Tang and Shuiqing Li. Influences of heat flux on extinction characteristics of steady/unsteady premixed stagnation flames. Proceedings of the Combustion Institute, vol. 38 no. 2, pages 2305-2314, 2021.
  • Yihua Ren, Yiyang Zhang, Qian Mao and Heinz Pitsch. Amorphous-to-crystalline transition during sintering of nascent TiO2 nanoparticles in gas-phase synthesis: a molecular dynamics study. The Journal of Physical Chemistry C, vol. 124 no. 50, pages 27763-27771, 2020.
  • Yihua Ren, Jinzhi Cai and Heinz Pitsch. Theoretical single-droplet model for particle formation in flame spray pyrolysis. Energy & Fuels, vol. 35 no. 2, pages 1750-1759, 2021.
  • Yihua Ren, Albrecht Kreischer, Florence Cameron and Heinz Pitsch. Quantitative measurement of mixture fraction in counterflow diffusion flames by laser-induced breakdown spectroscopy. Combustion and Flame, vol. 241, page 112130, 2022.
  • Dingyu Hou, Qian Mao, Yihua Ren and Kai H Luo. Atomic insights into mechanisms of carbon coating on titania nanoparticle during flame synthesis. Carbon, vol. 201, pages 189-199, 2023.
  • Maximilian Hellmuth, Florence Cameron, Sebastian Faller, Leona Schmückert, Bingjie Chen, Yihua Ren and Heinz Pitsch. Synergistic effect on PAH and soot formation in ethylene counterflow diffusion flames by the addition of 1, 3-dioxolane-a bio-hybrid fuel. Proceedings of the Combustion Institute, 2022.
  • Florence Cameron, Yihua Ren, Sanket Girhe, Maximilian Hellmuth, Albrecht Kreischer, Qian Mao and Heinz Pitsch. In-situ laser diagnostic and numerical investigations of soot formation characteristics in ethylene and acetylene counterflow diffusion flames blended with dimethyl carbonate and methyl formate. Proceedings of the Combustion Institute, 2022.