Recent publications
In October 2019 Aktis Hydraulics presented two papers at Smart Rivers Conference 2019 (Lyon, France). In June-July 2019 we presented at OMAE 2019.
Re-engineering of the gate lifting schedules of Lock Delden
Smart Rivers, morning Session B5 (We. 2 Oct. 2019)
The paper shows that the lifting schedule of the gate lock has been optimised resulting in:
- A reduction of the levelling time with 2 up to 5 min.
As a result the lock can now handle up to 10 to 25% more vessels per day. - A reduction of the longitudinal forces on the vessel with 30%;
Lock Delden is situated in the Twentekanaal in the Eastern part of the Netherlands.
The transport of containers by inland vessels
Smart Rivers, afternoon Session B6 (We. 2 Oct. 2019)
The paper illustrates that large vessels (Class Va, i.e. over 200 TEU) are most economic on long distance (>400 km) and on large main waterways.
The paper further illustrates that Class IV (approx. 100 TEU) can however be more economic and should be considered for:
- Transport over short distances (relatively short transit times compared to cargo handling at terminal);
- Transport through existing waterway infrastructure with limitation in air-draft and draft.
Squall Detection and Analysis from Historical Satellite Data
OMAE 2019, afternoon Session 2-15-1 (Mo. 10 Jun. 2019) on
The paper presents a method to estimate extreme wind speeds due to squalls or thunderstorms based on altimeter data.
The paper adresses the information extracted from the satellite samples and the assumptions made . Two case studies are presented where the method was succesfully applied to obtain reasonble results in West-Africa and Brazil. The method proposed fills a knowledge gap by providing an estimate of squall wind speeds in areas where no other sources of measurements are available.
Reference: OMAE 2019-96549