Nonlinear finite element analysis-based flow distribution model for engineering practice

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU133749" target="_blank" >RIV/00216305:26210/19:PU133749 - isvavai.cz</a>

Result on the web

<a href="https://aidic.it/cet/19/76/027.pdf" target="_blank" >https://aidic.it/cet/19/76/027.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3303/CET1976027" target="_blank" >10.3303/CET1976027</a>

Result language

angličtina

Original language name

Nonlinear finite element analysis-based flow distribution model for engineering practice

Original language description

In engineering practice, it is common that heat transfer equipment containing tube bundles are designed under the assumption of uniform flow distribution. Such a flawed approach may easily lead to various operating problems (increased local fouling rates, mechanical failures, etc.) and significantly shortened service life. Accordingly, knowing the flow pattern in the bundle is crucial to proper design of the respective apparatuses. Although computational fluid dynamics (CFD) models yield very accurate data, due to their inherent computational cost they are not really suitable for evaluation of large sets of possible flow system geometries. Algebraic or otherwise greatly simplified models, on the other hand, are acceptable in terms of computational performance, but generally suffer from low accuracy and limited applicability to more complex meshes. This paper therefore proposes a computationally efficient flow distribution model whose principle is analogous to nonlinear finite element analysis (FEA). Unlike in many other simplified models, no special correction algorithms or user modifications are needed here because the underlying system of equations is solved in the matrix form and the corrector step is mesh-independent. Additionally, results provided by the model are compared to the data obtained using detailed CFD analyses of several different flow systems. Although the accuracy of the model does not match that of CFD, it can still be used at the beginning of a design process to discard the obviously unsuitable options, which would otherwise have to be evaluated via lengthy CFD simulations.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20303 - Thermodynamics

Project

<a href="/en/project/EF16_026%2F0008413" target="_blank" >EF16_026/0008413: Strategic Partnership for Environmental Technologies and Energy Production</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Engineering Transactions

ISSN

2283-9216

e-ISSN

—

Volume of the periodical

76

Issue of the periodical within the volume

1

Country of publishing house

IT - ITALY

Number of pages

6

Pages from-to

157-162

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85076290941