Disputation: Reyna Guadalupe Ramirez de la Torre

Doctoral candidate Reyna Guadalupe Ramirez de la Torre at the Department of Mathematics, Faculty of Mathematics and Natural Sciences, is  defending the thesis Experiments on Bubble and Droplet Production in Falling Jets and Breaking Waves for the degree of Philosophiae Doctor.

Picture of the candidate.

Doctoral candidate Reyna Guadalupe Ramirez de la Torre

The University of Oslo is closed. The PhD defence and trial lecture will therefore be digital and streamed directly using Zoom. The host of the session will moderate the technicalities while the chair of the defence will moderate the disputation.

Ex auditorio questions: the chair of the defence will invite the audience to ask questions ex auditorio at the end of the defence. If you would like to ask a question, click 'Raise hand' and wait to be unmuted.

Trial lecture

Prerecorded trial lecture

"Optical methods of measuring ocean waves"

Prerecorded trial lecture

Main research findings

The development of research and exploration in Arctic waters is very common nowadays. One of the environmental difficulties to carry out research in these regions is the icing of surfaces. After short periods of time, ice can form in thick layers on the surface of vessels, ships and oil platforms. The understanding and prediction of this phenomenon is important for the safety of the structures, ships and people that develop the research and exploration in polar regions. The icing depends on many parameters, but one of the most important is the generation of droplets by waves in the ocean, these droplets get colder when travelling with the wind and create ice layers when they are deposited on the surfaces. In the current work, I focus in understanding how do the waves disintegrate into smaller droplets? And how does the wave energy and wind speed affect the droplet generation? Using experimental techniques that can retrieve 3 dimensional positions and velocities of the droplets in time, I analyze the amount and size of droplets produced by breaking waves and waves impacting in obstacles, like a vertical wall. I also analyze the influence of wind in the droplet trajectories and their dynamics.

Adjudication committee

  • Professor Frederic Dias, University College Dublin
  • Professor Alexander Liberzon, Tel Aviv University
  • Associate Professor Irina Didenkulova, University of Oslo


  • Professor Atle Jensen, University of Oslo
  • Professor Emeritus Geir K. Pedersen, University of Oslo
  • Postdoctoral Fellow Miroslav Kuchta, Simula Research Laboratory 

Chair of defence

  • Head of Department Geir Dahl, University of Oslo

Host of the session

Associate Professor Irina Didenkulova, University of Oslo

Candidate contact information


Published Mar. 30, 2021 3:38 PM - Last modified Apr. 21, 2021 12:22 PM