Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized Set of Boussinesq equations for Surf Zone Region   In this report, generalized wave breaking equations are developed using three
dimensional fully nonlinear extended Boussinesq equations to encompass
rotational dynamics in wave breaking zone. The derivation for vorticity
distributions are developed from Reynold based stress equations.

5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th