English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In heat transfer augmenting methods such as radial fins, the heat transferenhancement commonly leads to the drag force increment. In the present paper,slots are inserted over the fins to simultaneously reduce the drag coefficient.Turbulent convection heat transfer around a cylinder, as well as oscillatingbundle of tubes including the slotted radial fins have been investigated. Thegoverning equations are solved in two-dimension utilizing OpenFOAM softwarebased on k-{\omega} SST closure model. The cases with various slot location,slot width, the number of the slots, the fin height, and oscillationfrequencies are examined. In all cases, the Reynolds number is taken to beequal to 5000. Presence of three slots on the fins reduces the drag coefficientby 23% and augments the Nusselt number by 76%. In order to enhance the heattransfer from the bundle of tube, oscillation of tubes and utilization of theslotted fins are applied. The optimum situation occurs for a sample with theoscillating third column that shows 3% increment in heat transfer relative tothat of the fixed case. This is while adding the slotted fins to theoscillating tube bank increases the heat transfer up to 2.5 times.

Combined active-passive heat transfer control using slotted fins and oscillation in turbulent flow: the cases of single cylinder and tube banks