• NERC Data Catalogue Service
  •  
  •  
  •  

MFIX input and output files for the study of granular rheology using mixtures with varying size, density, particle friction, and flow geometry

MFIX (Multiphase Flow with Interphase eXchanges) simulation input files and raw particle output files. The study was published in Breard, E. C., Fullard, L., & Dufek, J. (2024). Rheology of granular mixtures with varying size, density, particle friction, and flow geometry. Physical Review Fluids, 9(5), 054303. Description of files 1. Input particle input file (*.dat) 2. VELOCITY* and FORCES* files exported at 10 Hz The simulation are all done as pressure-controlled shear cells where the x and z axes are periodic boundaries, and the top and bottom boundaries are solid rough plates. The simulations are split in three types: MONODISPERSE, BIDISPERSE and TRIDISPERSE, where particle size (in mm), is indicated in the naming of the directory. The, in each set of simulation, the naming is with the following structure: 20N_0.0001ms, where the first number indicates the confining pressure (20 Newtons) and the second indicate the top plate moving velocity in the x-direction (0.0001 m/s). Note the simulations were run with MFIX-18. The MFIX code that is modified from the core code from the Department of Energy (DOE) is all present. The missing core code can be downloaded from the DOE department https://mfix.netl.doe.gov/.

Simple

Date (Creation)
2023-11-06
Identifier
http://data.bgs.ac.uk/id/dataHolding/13608315
Originator
  University of Edinburgh - Eric Breard
Originator
  University of Oregon - Josef Dufek
Originator
  Horizons Regional Council - Luke Fullard
Distributor
  British Geological Survey - Enquiries
Point of contact
  British Geological Survey - Enquiries
Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes, version 1.0
  • Geology
BGS Thesaurus of Geosciences
  • Citable Data
  • Pyroclastic rocks
  • Rheology
  • NGDC Deposited Data
  • Lava flows
dataCentre
  • NGDC Deposited Data
  • Citable Data
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Other constraints
licenceOGL
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Use constraints
otherRestrictions Other restrictions
Other constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
Begin date
2022-11-01
End date
2023-10-30

Reference System Information

No information provided.
Distribution format
  • .dat ()

  • VELOCITY* and FORCES* files ()

Distributor
  British Geological Survey - Enquiries
OnLine resource
Data
OnLine resource
Digital Object Identifier (DOI)
Hierarchy level
nonGeographicDataset Non geographic dataset
Other
non geographic dataset

Conformance result

Date (Publication)
2011
Explanation
See the referenced specification
Pass
No

Conformance result

Date (Publication)
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Pass
No
Statement
We use the discrete element method to study rheology of dense granular media, taking into account a range of particle size, density, and frictional properties that spans quasistatic to inertial regimes. We find that the stress ratio, , and concentration, , are functions of the inertial number when volume averaging over the contributions of each solid phase is used to compute the mean particle density, friction, and size. In addition, critical packing fraction is linked with distribution skewness and polydispersity, particle friction independent of size distribution. Guided by Kim and Kamrin, Phys. Rev. Lett. 125, 088002, 2020, we put forward a rheological scaling power-law by which all our monodisperse and polydisperse data is collapsed, which relies on dimensionless granular temperature, concentration, and inertial number. The model represents an excellent combination of ⁡()-rheology with kinetic theory, thus enabling the unification of all local and non-local rheology data on one single master curve.
File identifier
27cdfbea-fbaa-2baa-e063-0937940a2203 XML
Metadata language
EnglishEnglish
Hierarchy level
nonGeographicDataset Non geographic dataset
Hierarchy level name
non geographic dataset
Date stamp
2025-11-13
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  British Geological Survey
Environmental Science Centre,Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
+44 115 936 3100
Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13608315
 
 

Overviews

overview

Spatial extent

Keywords


Provided by

logo

Share on social sites

Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •