Paper/Nano Technology Books
Micro and Nanotechnology in Paper Manufacturing
Author- Dr. Mahendra Patel, (530 pages ); ISBN No. 978-81-923542-2-4);
Price: $ (USA) 120 + delivery charge
Minerals in Paper Manufacturing
(Author- Dr. Mahendra Patel, 32 chapters, 350 pages ; ISBN No. 978-81-923542-1-7).
Price: $ (USA) 65 + delivery charge
Operations and Recycling in Paper Mills with Micro and Nano Concepts
Author- Dr. Mahendra Patel; (22 chapters- 500 pages); ISBN No.978-81-923542-3-1)
Price: $ (USA) 150 + delivery charge
Materials for
Better Productivity in Pulp and Paper Mills: Metals and Polymers
(Author: Dr. Mahendra
Patel; 616 pages; 36 chapters; ISBN No.978-81-923542-5-5)
Price- US $230+
Cost of dispatch.
Ceramics in Paper Manufacturing
including Advanced and Nano Materials
(Author: Dr.
Mahendra Patel, 420 pages; 32 chapters, ISBN No: 978-81-923542-4-8.)
Price: $ (USA) 220 + delivery charge
Contact: industrypaper@yahoo.co.uk
patel@nanoindustry.in
:Tel:91(0)9871787870
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Nanotechnology Update
Pulp, Paper and Packaging industries
24/01/2012
Microstructure simulation of paper forming
Paper forming is the first step in the paper machine where a fiber suspension leaves the headbox and flows through a forming fabric. Complex physical phenomena occur as the paper forms, during which fibers, fillers, fines, and chemicals added to the suspension interact. Understanding this process is important for the development of improved paper products because the configuration of the fibers during this step greatly influences the final paper quality. Because the effective paper properties depend on the microstructure of the fiber web, a continuum model is inadequate to explain the process and the properties of each fiber need to be accounted for in simulations. This study describes a new framework for microstructure simulation of early paper forming.
The simulation framework includes a Navier-Stokes solver and immersed boundary methods to resolve the flow around the fibers. The fibers were modeled with a finite element discretization of the Euler-Bernoulli beam equation in a co-rotational formulation. The contact model is based on a penalty method and includes friction and elastic and inelastic collisions. The fiber model and the contact model were validated against demanding test cases from the literature, with excellent results. The fluid-structure interaction in the model was examined by simulating an elastic beam oscillating in a cross flow. Simulation has also been made for the early paper formation to demonstrate the potential of the proposed framework. This unique modeling approach for microstructure simulation of early paper forming can increase the fundamental understanding of paper forming and support process optimization. (Source: TAPPI JOURNAL Nov. 2011)
