Autor:

Rashed, Musaab K. ; Jehhef, Kadhum Audaa ; Badawy, Faris Ali

Współtwórca:

Jurczak, Paweł - red.

Tytuł:

Numerical study on thermal performance of water flow in a twisted duct heat exchanger

Tytuł publikacji grupowej:

IJAME, volume 27 (2022)

Temat i słowa kluczowe:

mixed convection ; twisted square duct ; heat exchanger ; laminar flow

Abstract:

This paper presents a numerical study of heat transfer through a downstream annulus using water as the working fluid within the laminar flow region. The annulus consisted of an outer twisted square duct and an inner circular pipe. A three-dimensional formulation was used to solve the Navier-Stokes equations numerically for the laminar flow system with a low Reynolds number. ; The results were illustrated as a profile of the thermal enhancement factor, the friction factor and the Nusselt number. The results show that the twisted outer duct of the heat exchanger can create a swirl flow along the length of the heat exchanger. It also caused a boundary layer separation-reattachment on the wall of the inner pipe.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Data wydania:

2022

Typ zasobu:

artykuł

Format:

application/pdf

DOI:

10.2478/ijame-2022-0028

Strony:

199-216

Źródło:

IJAME, volume 27, number 2 (2022)

Jezyk:

eng

Licencja:

CC 4.0

Licencja CC BY-NC-ND 4.0:

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Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego