Skip navigation
SuUB logo
DSpace logo

  • Home
  • Institutions
    • University of Bremen
    • City University of Applied Sciences
    • Bremerhaven University of Applied Sciences
  • Sign on to:
    • My Media
    • Receive email
      updates
    • Edit Account details

Citation link: http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000111333
00011133.pdf
OpenAccess
 
copyright

Modellierung von Gashydraten und deren Wachstumsverhalten im Porenraum mariner Sedimente mit Hilfe der Distinkte Elemente Methode.


File Description SizeFormat
00011133.pdf4.62 MBAdobe PDFView/Open
Other Titles: The mechanical behavior of gas hydrate in the pore space of marine sediments modeled with the Distinct Element Method.
Authors: Kreiter, Stefan 
Supervisor: Mörz, Tobias 
1. Expert: Mörz, Tobias 
Experts: Huhn, Katrin  
Abstract: 
The mechanical behavior of gas hydrate bearing sediment is a possible trigger for huge tsunami generating slides on continental margins, but little is known of gas hydrates mechanical behavior in sediment. Here a method is proposed to simulate the behavior of gas hydrate in sediment on the pore scale using the Distinct Element Method (DEM). The simulation is founded on the surface energy, which is the cause for the forces exerted by growing crystals. The simulation uses attractive particle interaction and random particle agitation to generate a surface tensed material. The method is calibrated and validated by a series of different experiments. Gas hydrate growth is simulated in an oedometer. The influence of the host sediment fabric on gas hydrate fabric is investigated in a series of element tests and compared to natural gas hydrate fabrics.
Keywords: DEM; Distinct Element Method; gas hydrate; methane hydrate; surface energy; surface tension; shear box; oedometer
Issue Date: 24-Jul-2007
Type: Dissertation
Secondary publication: no
URN: urn:nbn:de:gbv:46-diss000111333
Institution: Universität Bremen 
Faculty: Fachbereich 05: Geowissenschaften (FB 05) 
Appears in Collections:Dissertationen

  

Page view(s)

332
checked on Oct 4, 2023

Download(s)

236
checked on Oct 4, 2023

Google ScholarTM

Check


Items in Media are protected by copyright, with all rights reserved, unless otherwise indicated.

Legal notice -Feedback -Data privacy
Media - Extension maintained and optimized by Logo 4SCIENCE