Examination of Wake Characteristics for Tandem Circular Cylinders via Computational Fluid Dynamics DOI Creative Commons
İlker Göktepeli

Journal of Advanced Research in Natural and Applied Sciences, Год журнала: 2025, Номер 11(1), С. 1 - 11

Опубликована: Март 31, 2025

Wake characteristics of the cylinders have been numerically investigated for tandem arrangement. The study was done airflow at a diameter-based Reynolds number Re = 200 via ANSYS-Fluent 2021 R1. Variations horizontal distances between two with same diameter considered in 1.5 ≤ L* 6 range. drag coefficients attained, and these results presented along flow velocity components, magnitude values vorticity, pressure distributions. In front upstream cylinder, stagnated all cases. Nonetheless, it has observed ≥ 4.5 terms downstream cylinder. periodical clusters cross-stream components attained wake region. Vortex shedding patterns. unsteady structures seen. spacing circular influenced force. Nevertheless, effect an cylinder on one disappeared this study. coefficient is approximately concerning value single as result

Язык: Английский

Mixed heat transfer from a square cylinder near the wall DOI
Zerrin Sert

Physics of Fluids, Год журнала: 2025, Номер 37(3)

Опубликована: Март 1, 2025

This study investigates the effect of flow and heat transfer on a square cylinder placed near planar wall. The is assumed to be within boundary layer Five different wall-to-cylinder gap ratios are considered, i.e., G/D = 0.2, 0.6, 1.2, 2, 3. Reynolds number based width fixed at Re 150. In this study, two-dimensional analysis performed for mixed convection under influence aiding opposing buoyancy (−1≤Ri ≤ 1). unsteady governing continuity, momentum, energy equations solved with fully implicit fractional-step method using computer code written in FORTRAN. numerical results have been presented terms characteristics, such as mean drag rms lift coefficients, local Nusselt variations. For qualitative assessment, field temperature distributions also acquired interpret understand underlying physical mechanism because patterns change simultaneously. case pure forced convection, rate 0.2 was about half that 3 case. significant caused by large velocity difference between top front surfaces when plane Additionally, Ri > 0, ratio coefficient Nu decreased.

Язык: Английский

Процитировано

0

Examination of Wake Characteristics for Tandem Circular Cylinders via Computational Fluid Dynamics DOI Creative Commons
İlker Göktepeli

Journal of Advanced Research in Natural and Applied Sciences, Год журнала: 2025, Номер 11(1), С. 1 - 11

Опубликована: Март 31, 2025

Wake characteristics of the cylinders have been numerically investigated for tandem arrangement. The study was done airflow at a diameter-based Reynolds number Re = 200 via ANSYS-Fluent 2021 R1. Variations horizontal distances between two with same diameter considered in 1.5 ≤ L* 6 range. drag coefficients attained, and these results presented along flow velocity components, magnitude values vorticity, pressure distributions. In front upstream cylinder, stagnated all cases. Nonetheless, it has observed ≥ 4.5 terms downstream cylinder. periodical clusters cross-stream components attained wake region. Vortex shedding patterns. unsteady structures seen. spacing circular influenced force. Nevertheless, effect an cylinder on one disappeared this study. coefficient is approximately concerning value single as result

Язык: Английский

Процитировано

0