Vvpf

vvpfFoam 1.0

The vvpfFoam solver combines the Volume of Fluid Method (VOF) with the Drift Flux Model (DFM) within the OpenFOAM Framework. The aim with the software is the ability to simulate gravity induced segregation (GIS) as well as shear (rate) induced particle migration (SIPM). It has the ability to include additional segregation phenomena without difficulty, as well as handle high solid concentrations. In its current state, the software has been run up to and above solid concentration of 0.5 without issues.

vvpfFoam is designed to calculate the effect of various segregation phenomena as well as work with high solid (aggregate) concentrations. Although the solver is initially designed with fresh concrete in mind, it is not limited to this. For example, it can be used for calculating the flow of aluminum particles submerged in viscous oil. Also, other types of cement-based material can be analyzed with this solver, like the fresh mortar. Furthermore, the solver can be used for other geometrical cases, like analyzing the flow inside a rheometer.

As a OpenFOAM solver, the vvpfFoam complies with the GNU GPL license. As such, the user is free to modify or rewrite the software and publish the outcome. Read the documentation vvpfFoamDoc10.pdf before using this solver.

The solver, documentation vvpfFoamDoc10.pdf and a case example can be downloaded from the above links. These files are also available at GitHub:

BIBLIOGRAPHY

1. J.E. Wallevik, Combining the Volume of Fluid Method with the Drift Flux Model within the OpenFOAM Framework - The vvpfFoam Solver, Innovation Center Iceland, Report No. NMI 20-01, 2020 (ISBN: 978-9935-463-59-3).
2. J.E. Wallevik, B. Hjartarson, Skuggarákir á yfirborði steinsteypu - greining með reiknilegri straumfræði, Sigmál - fréttabréf Steinsteypufélag Íslands, 1. tbl. 33 árgangur, Febrúar 2020. (e. Formation of reinforcement shadows on the concrete surface - analysis by computational means, published by the Icelandic Concrete Association, 2020).
3. J.E. Wallevik, W. Mansour, O.H. Wallevik, Computational Segregation Analysis During Casting of SCC. In: Mechtcherine V., Khayat K., Secrieru E. (eds) Rheology and Processing of Construction Materials. RheoCon 2019, SCC 2019. RILEM Bookseries, vol 23. Springer, Cham, 2020. https://doi.org/10.1007/978-3-030-22566-7_76
4. J.E. Wallevik, W. Mansour, O.H. Wallevik, OpenFOAM casting solver with segregation, International RILEM conference on Materials, Systems and Structures in Civil Engineering, Conference segment on Fresh Concrete, RILEM Publications S.A.R.L. ISBN: 978-2-35158-184-1, 22-24 August, Technical University of Denmark, Lyngby, Denmark, 2016.
5. J.E. Wallevik, W. Mansour, O.H. Wallevik, Computational Segregation Analysis during Casting of SCC: In Kamal H. Khayat (Ed.) SCC 2016 8th International RILEM Symposium on Self-Compacting Concrete, Washington DC, USA, 15-18 May 2016.

Viscometric-ViscoPlastic-Flow 2.0 (vvpf)

Here you can download the software Viscometric-ViscoPlastic-Flow, version 2.0 (vvpf 2.0). The software is now applying entirely new material model and other new features. As for version 1.0, this version is developed in Fortran 90 [ANSI X3.198-1992; ISO/IEC 1539-1:1991 (E)].

Viscometric-ViscoPlastic-Flow 2.0 is a free software and can be redistributed and/or modified under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at the users option) any later version (see copying).

BIBLIOGRAPHY

1. Jon Elvar Wallevik, Rheological properties of cement paste: thixotropic behavior and structural breakdown, Cement and Concrete Research, 39 (2009) 14 - 29.
2. Jon Elvar Wallevik, Particle Flow Interaction Theory - Thixotropic Behavior and Structural Breakdown, proceedings of 36th Conference on our World of Concrete and Structures, 14-16 August 2011, Singapore, pp. 103, 2011 (ISBN 978-981-08-9528-0).

Viscometric-ViscoPlastic-Flow 1.0 (vvpf)

Here you can download the software Viscometric-ViscoPlastic-Flow, version 1.0 (vvpf 1.0). There are two download files available. One is a zip compressed file (vvpf_10.zip) for Windows NT users (4.x, 5.x and 6.x) and the other is a tar compressed file (vvpf_10.tgz) for UNIX/GNU-Linux users. In the file vvpf_10.zip, a development setting is included for the users of the Digital/Compaq Visual Fortran (CVF) Compiler. But, other compilers can be used as well.

Viscometric-ViscoPlastic-Flow (ver. 1.0) is actually two different programs. The first one (vvpf10_ct34) solves the flow of viscoplastic material inside the ConTec BML Viscometer 3 (see Figure 8.15, page 197) and ConTec Viscometer 4 (see Figure 9.5, page 217), both for steady state and transient cases. The second software (vvpf10_c3p2) calculates the flow of a viscoplastic material inside a modified cone viscometer, called C3P2 (see Figure 10.30, page 264). For the latter software, only steady state cases are calculated.

Viscometric-ViscoPlastic-Flow is write in Fortran 90 [ANSI X3.198-1992; ISO/IEC 1539-1:1991 (E)]. This software is a free and can be redistributed and/or modified under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at the users option) any later version (see copying). Documentation of this program can be found in the link page (see Rheology of Particle Suspensions - Fresh Concrete, Mortar and Cement Paste with Various Types of Lignosulfonates ). In this manual, read Chapters 7, 8, 9 and 10. See also Appendices A.2 and A.3 (page 285 and page 345).

BIBLIOGRAPHY

1. Jon Elvar Wallevik, Thixotropic investigation on cement paste: experimental and numerical approach, J. Non-Newtonian Fluid Mech. 132 (2005) 86 - 99.
2. Jon Elvar Wallevik, Rheology of Particle Suspensions - Fresh Concrete, Mortar and Cement Paste with Various Types of Lignosulfonates (Ph.D.-thesis), Department of Structural Engineering, The Norwegian University of Science and Technology, 2003 (ISBN 82-471-5566-4; ISSN 0809-103X)
3. Jon Elvar Wallevik, Microstructure-Rheology - A Futuristic Tool for the Producers of Cement and Superplasticizers; SINTEF/NTNU Betonginformasjonsdag 2005, SINTEF Report no. STF22 A05150, 2005, ISBN 82-14-03568-6 (in Norwegian).