Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The effect of pressure pulsing on the mechanical dewatering of nanofiber
  suspensions   Dewatering processes are invariably encountered in the chemical manufacturing
and processing of various bioproducts. In this study, Computational Fluid
Mechanics (CFD) simulations and theory are utilized to model and optimize the
dewatering of commercial nanofiber suspensions. The CFD simulations are based
on the volume-averaged Navier-Stokes equations while the analytical model is
deduced from the empirical Darcy's law for dewatering flows. The results are
then successfully compared to experimental data on commercial cellulose
suspensions obtained with a Dynamic Drainage Analyzer (DDA). Both the CFD
simulations and the analytical model capture the dewatering flow profiles of
the commercial suspensions in an experiment utilizing a constant pressure
profile. However, a temporally varying pressure profile offers a superior
dewatering performance, as indicated by both the simulations and the analytical
model. Finally, the analytical model also predicts an optimized number of
pressure pulses, minimizing the time required to completely dewater the
suspension.

34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
16
The categories of this paper are: stat