Numerical comparison of thermal and hydraulic performances for heat exchangers having circular and elliptic cross-section

S Dogan, S Darici, M Ozgoren - International Journal of Heat and Mass …, 2019 - Elsevier
The plain fin and circular tubes are generally used in heat exchangers of cooling systems.
Numerous studies aiming at enhancing the thermal and hydraulic performances of this type …

Horseshoe vortex studies in the passage of a model plate-fin-and-tube heat exchanger

B Sahin, NA Ozturk, C Gurlek - International Journal of Heat and Fluid Flow, 2008 - Elsevier
An experimental investigation is reported using particle image velocimetry of the flow
structure in the flow through a rectangular duct containing a circular cylinder with axis …

Investigations of flow characteristics in a plate fin and tube heat exchanger model composed of single cylinder

B Şahin, A Akkoca, NA Öztürk, H Akilli - … journal of heat and fluid flow, 2006 - Elsevier
The flow structure in a plate fin and tube heat exchanger model composed of single cylinder
located between two parallel plates for duct height-to-cylinder diameter ratio of 0.365 for …

PIV measurements of flow past a confined cylinder

NA Ozturk, A Akkoca, B Sahin - Experiments in Fluids, 2008 - Springer
This study investigates the flow past a confined circular cylinder built into a narrow
rectangular duct with a Reynolds number range of 1,500≤ Re d≤ 6,150, by employing the …

PIV measurements of flow through normal triangular cylinder arrays in the passage of a model plate-tube heat exchanger

NA Ozturk, C Ozalp, C Canpolat, B Sahin - … Journal of Heat and Fluid Flow, 2016 - Elsevier
In this work, the flow behaviors of multiple circular cylinders in a staggered arrangement,
located in a rectangular duct with a narrow gap are studied experimentally using laser …

[PDF][PDF] Investigation of flow characteristics in heat exchangers of various geometries

NA Ozturk - 2006 - academia.edu
Finally, the flow characteristics of multiple circular cylinder arrangements in the passage of
rectangular duct were examined in order to reveal the mechanisms of hydrodynamics which …

Downstream particle image velocimetry measurements of a circular cylinder—plate junction

NA Ozturk, A Akcayoglu… - Proceedings of the …, 2009 - journals.sagepub.com
In the present investigation, special attention was given to the flow characteristics
downstream of a circular cylinder mounted on a flat surface for Reynolds numbers of 4000 …

Thermal flows around a fully permeable short circular cylinder

S Schekman, T Kim - International Journal of Heat and Mass Transfer, 2017 - Elsevier
Secondary flows and corresponding endwall heat transfer around a fully permeable
(porous) short circular cylinder differ from those around an impermeable (solid) cylinder …

[PDF][PDF] Aerodynamics of a model bus

S Mezarciöz - 2010 - library.cu.edu.tr
The ultimate goal of this work is to examine the turbulent, 3D flow around a bus-shaped
body by means of CFD. Another goal of this study is to show the accordance between the …

[PDF][PDF] Investigation of flow characteristics around a Single and staggered slotted-cylinders

Ö Suat - 2010 - academia.edu
The aim of this experimental study is to determine the flow characteristics of a single and
multiple slotted-staggered cylinders placed in a rectangular water channel with a narrow …