Wyszukiwanie zaawansowane ?

Obiekt

Effects of rotation on transient fluid flow and heat transfer through a curved square duct: the case of negative rotation

Pobierz

Tytuł: Effects of rotation on transient fluid flow and heat transfer through a curved square duct: the case of negative rotation

Autor:

Hasan, Mohammad Sanjeed ; Mollah, Md. Tusher ; Kumar, Dipankar ; Mondal, Rabindra Nath ; Lorenzini, Giulio

Data wydania:

2021

Typ zasobu:

artykuł

Współtwórca:

Jurczak, Paweł - red.

Tytuł publikacji grupowej:

IJAME, volume 26 (2021)

Abstract:

The fluid flow and heat transfer through a rotating curved duct has received much attention in recent years because of vast applications in mechanical devices. It is noticed that there occur two different types of rotations in a rotating curved duct such as positive and negative rotation. The positive rotation through the curved duct is widely investigated while the investigation on the negative rotation is rarely available. ; The paper investigates the influence of negative rotation for a wide range of Taylor number ( ?10 ? Tr ? ?2500 ) when the duct itself rotates about the center of curvature. Due to the rotation, three types of forces including Coriolis, centrifugal, and buoyancy forces are generated. ; The study focuses and explains the combined effect of these forces on the fluid flow in details. First, the linear stability of the steady solution is performed. An unsteady solution is then obtained by time-evolution calculation and flow transition is determined by calculating phase space and power spectrum. When Tr is raised in the negative direction, the flow behavior shows different flow instabilities including steady-state, periodic, multi-periodic, and chaotic oscillations. ; Furthermore, the pattern variations of axial and secondary flow velocity and isotherms are obtained, and it is found that there is a strong interaction between the flow velocities and the isotherms. ; Then temperature gradients are calculated which show that the fluid mixing and the acts of secondary flow have a strong influence on heat transfer in the fluid. Diagrams of unsteady flow and vortex structure are further sketched and precisely elucidate the curvature effects on unsteady fluid flow. Finally, a comparison between the numerical and experimental data is discussed which demonstrates that both data coincide with each other.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Format:

application/pdf

Identyfikator zasobu:

oai:zbc.uz.zgora.pl:69542

DOI:

10.2478/ijame-2021-0048

Strony:

29-50

Źródło:

IJAME, volume 26, number 4 (2021)

Jezyk:

eng

Licencja:

CC 4.0

Licencja CC BY-NC-ND 4.0:

kliknij tutaj, żeby przejść

Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego

Temat i słowa kluczowe:

flow transition temperature gradient unsteady and vortex diagram experimental validation

Kolekcje, do których przypisany jest obiekt:

Data ostatniej modyfikacji:

2023-07-06

Data dodania obiektu:

2023-02-08

Liczba wyświetleń treści obiektu:

94

Wszystkie dostępne wersje tego obiektu:

https://zbc.uz.zgora.pl/repozytorium/publication/77665

Wyświetl opis w formacie RDF:

RDF

Wyświetl opis w formacie OAI-PMH:

OAI-PMH

Nazwa wydania Data
Effects of rotation on transient fluid flow and heat transfer through a curved square duct: the case of negative rotation 2023-07-06

Obiekty

Podobne
IJAME, volume 25 (2020)
IJAME, volume 25 (2020)

Numerical investigation on the transition of fluid flow characteristics through a rotating curved duct

Hasan, Mohammad Sanjeed Islam, Md. Sirajul Badsha, Md. Faisal Mondal, Rabindra Nath Lorenzini, Giulio Jurczak, Paweł - red.

2020
artykuł
IJAME, volume 18 (2013)
IJAME, volume 18 (2013)

Effect of viscous dissipation and thermal radiation on heat transfer over a non-linearly stretching sheet through porous medium

Nandeppanavar, Mahantesh M. Siddalingappa, M.N. Jurczak, Paweł - red.

2013
artykuł
Więcej

Dane kontaktowe

Adres

Biblioteka Uniwersytetu Zielonogórskiego
al. Wojska Polskiego 71
65-762 Zielona Góra

Telefon

(+48) 68 328 21 55

E-Mail

repozytorium@uz.zgora.pl

Odwiedź nas!

Ta strona wykorzystuje pliki 'cookies'. Więcej informacji