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/.

Date (Creation): 2023-11-06

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13608315

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Edinburgh	Eric Breard	not available	Originator
University of Oregon	Josef Dufek	not available	Originator
Horizons Regional Council	Luke Fullard	not available	Originator
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Point of contact

Maintenance and update frequency: notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Citable Data
Pyroclastic rocks
Rheology
NGDC Deposited Data
Lava flows

dataCentre

Keywords

NERC_DDC

Access constraints: 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: 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]"

Language: English

Topic category

Geoscientific information

Begin date: 2022-11-01

End date: 2023-10-30

Reference System Information

No information provided.

Distribution format

Name	Version
.dat
VELOCITY* and FORCES* files

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item186553	Data

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.5285/7ca93ca3-e086-4ed3-905f-2ec6b96f4e13	Digital Object Identifier (DOI)

Hierarchy level: Non geographic dataset

Other: non geographic dataset

Conformance result

Title: INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

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.