Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three-Dimensional Numerical Modeling of Acoustic Trapping in Glass
  Capillaries   Acoustic traps are used to capture and handle suspended microparticles and
cells in microfluidic applications. A particular simple and much-used acoustic
trap consists of a commercially available, millimeter-sized, liquid-filled
glass capillary actuated by a piezoelectric transducer. Here, we present a
three-dimensional numerical model of the acoustic pressure field in the liquid
coupled to the displacement field of the glass wall, taking into account mixed
standing and traveling waves as well as absorption. The model predicts
resonance modes well suited for acoustic trapping, their frequencies and
quality factors, the magnitude of the acoustic radiation force on a single test
particle as a function of position, and the resulting acoustic retention force
of the trap. We show that the model predictions are in agreement with published
experimental results, and we discuss how improved and more stable acoustic
trapping modes might be obtained using the model as a design tool.

32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom