Sloshing-InvestigationsCommercial Sloshing Investigations


Dr.-Ing. Jens Neugebauer

Robert Potthoff M. Sc.

Prof. Dr.-Ing. Bettar Ould el Moctar

Project Description

The University of Duisburg-Essen owns a modern, State-of-the-Art sloshing test facility. The facility is comprised of the following systems:

  1. A hexpod-type motion platform capable of performing six Degree of Freedom (DoF) motions with payloads up to 1.2 tons, motion amplitudes of 0.5 m (translation) and 30° (rotation) and a maximum acceleration of 1 g
  2. Miniature pressure sensors for impact load measurements
  3. Probes for the measurement of the free surface
  4. Data acquisition systems for different sensor types and acquisition rates up to 100 kHz
  5. A Particle-Image-Velocimetry (PIV) system for non-intrusive measurements of flow velocities in a plane
  6. High-speed cameras
  7. A High-Performance-Computing (HPC) cluster for numerical investigations using Computational Fluid Dynamics (CFD)

Scientists at the chair have long experience in the fields of experimental and numerical fluid dynamics. A multitude of commercial projects, some lasting multiple years, concerning sloshing were conducted. Our customers are companies from the oil and gas industry, shipyards and research facilities.

A warning system for sloshing impact loads in Liquefied Natural Gas (LNG) tanks was developed for a customer from the oil and gas industry during a long-term project. More than 1000 sloshing model tests in irregular seaways were carried out and processed in the scope of the project. Pool sloshing was under investigation for shipyards. Physical models are in accordance with customers’ geometry requirements, but the adaptions to suit the needs of the tests are incorporated by our scientists. An appropriate arrangement of sensor openings, design optimized towards high manufacturing accuracy requirements, integration of complex geometry and functional components like drains with water recirculation in pool models are our understanding of model standards. Our models are manufactured of acrylic glass, wood or plastics. Depending on the model complexity models are sometimes even printed.

We provide tailor-made engineering solutions to our customers. Our portfolio ranges from short projects in which we offer and accompany the use of our equipment, over combined projects including council services, model design, test conduction and documentation towards long-term research projects in which we develop new solutions for our customers.

Do you need our service? Feel free to contact us!

Contact: Dr-Ing. Jens Neugebauer, Email, Phone +49 203 379-1168


More information on the sloshing test facility

More information on the PIV-System

More information on the HPC-Cluster

Selected Publications

  1. Neugebauer, J., el Moctar, O. and Potthoff, R., “Experimental and Numerical Investigation of Single Impacts in a 2D Tank”, Proceedings of the International Ocean and Polar Engineering Conference, Busan, Volume: 24, June 2014
  2. Neugebauer, J., Potthoff, R., and el Moctar, O., "Investigation of Liquid Resonance in a 3D LNG-Tank Model by Means of Impact Pressure and Free Surface Elevation”, Proceedings of the International Ocean and Polar Engineering Conference, Rhodes, Volume: 26, June 2016
  3. Neugebauer, J., Liu, S., Potthoff, R., an el Moctar, O., "Investigation of the Motion Accuracy Influence on Sloshing Model Test Results“, Proceedings of the International Ocean and Polar Engineering Conference, San Francisco, Volume: 27, June 2017 (accepted but still to be published)
  4. Lyu, W., el Moctar, O., Potthoff, R., Neugebauer, J. (2017). Experimental and numerical investigation of sloshing using different free surface methods. Applied Ocean Research. Vol. 68, pp 307–324.