1. ABOUT THE DATASET
--------------------

Title:	Simulation of bidisperse colloidal centrifugal sedimentation using a mixture viscosity model - Dataset

Creator(s): Hangyu Chen [1,2]; Oguzhan Kivan [1]; Timothy N. Hunter [1]

Organisation(s): 1. University of Leeds. 2. Tsinghua University

Rights-holder(s):Unless otherwise stated, Copyright 2023 University of Leeds

Publication Year: 2023

Description: Data included is corresponding data figure files for all figures in related publication. Includes simulation and experimental data of bidisperse particle sedimentation, in Earth grabity and centrifugal conditions. Bidisperse suspensions were silica nanoparticles in two size ratios, 500:800 nm and 100:500 nm mixtures. Experimental data was gathered using a LUMiSizer(R) and Turbiscan(R). Comparisons of settling velocities versus concentration with the Richardson-Zaki power-law model are also given.

Cite as: Hangyu Chen, Oguzhan Kivan, Timothy Hunter (2023): Simulation of bidisperse colloidal centrifugal sedimentation using a mixture viscosity model - Dataset. [Dataset]. https://doi.org/10.5518/1421] 

Related publication: Simulation of bidisperse colloidal centrifugal sedimentation using a mixture viscosity model, Physics of Fluids, 2023 (article in press)

Contact: Timothy Hunter (email: t.n.hunter@leeds.ac.uk)


2. TERMS OF USE
---------------
This dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/.


3. PROJECT AND FUNDING INFORMATION
----------------------------------

Title: MULTIphase Fluid flOw in nucleaR systeMs (MULTIFORM)

Dates: Oct 2021, April 2024.

Funding organisation: EPSRC

Grant no.: EP/V034898/1


4. CONTENTS
-----------
File listing

Figure 1 (a)	DLVO calculation #1	Origin Graph	Fig.1(a,left) 500,800 DLVO.opj
Figure 1 (a)	DLVO calculation #2	Origin Graph	Fig.1(b,right)500,800 DLVO - 2.opj
Figure 2	Earth gravity concentration	Origin Graph	Fig.2 phi of earth gravity.opj
Figure 3	500:800 nm centrifugal concentration	Origin Graph	Fig.3 VF,1;2,500;800,1000rpm,NewBidisC,1-3vol.opj
Figure 4	X-ray sedimentation measurement	Excel Plot	Fig.4 x-ray sedimentation data.xlsx
Figure 5	100:500 nm concentration	Origin Graph	Fig.5 2vol%,earth gravity,500;800,1;1,newvis.opj
Figure 6	Earth gravity interface graph	Origin Graph	Fig.6 cocentration,2;1,100;500,4000rpm,NewBidisC,3vol%.opj
Figure 7	Centrifugal interface graphs 500:800 nm	Origin Graph	Fig.7 Newbidisperse,FT,500;800,1;2,1-3vol%.opj
Figure 8	Centrifugal interface graph, 100:500 nm	Origin Graph	Fig.8 3.0VOL% 2;1,100;500,4000rpm,IvT,with SIM.opj
Figure 9 (a)	Settling rate versus concentration, 500:800 nm case #1	Origin Graph	Fig.9(a) 1;2,500;800, v vs vol,1000rpm,replot with sim.opj
Figure 9 (b)	Settling rate versus concentration, 500:800 nm case #2	Origin Graph	Fig.9(b) 1;1,500;800, v vs vol,1000rpm,replot with sim.opj
Figure 9 (c)	Settling rate versus concentration, 500:800 nm case #3	Origin Graph	Fig.9(c) 2;1,500;800, v vs vol,1000rpm,replot with sim.opj
Figure 10	Settling rate versus concentration, 100:500 nm cases	Origin Graph	Fig.10 100;500 1;1, 4000rpm ve_vol% with sim.opj 


5. METHODS
----------

Experiments and simulations considered nanosilica particles at two size ratios, 500:800 nm (ratio 1.6) and 100:500 nm (ratio 5).
Three different mixture ratios were used 2:1, 1:1 and 1:2, and various total volume fractions from 0.01 - 0.03.
Centrifugal experimental data gained from the LUMiSizer(R). Earth gravity experimental data from the Turbiscan(R), using the backscatter sensor.
Simulations based on an advection-diffusion model, ustilising a bidisperse mixture viscocity model, and DLVO calculations for interparticle distance. 
Model numerically simulated in Matlab(R), using a 2000 node adapative Mesh.