...P. Michálek; S. Pospíšil; M. Macháček; V. Michalcová The flow around a heated circular cylinder and the wake behind it were studied in wind tunnel flow using two methods of anemometry, i.e., particle image velocimetry (PIV) and constant temperature anemometry (CTA) with a special technique using...

... and bar positions. For this purpose, particle image velocimetry (PIV) system has been employed to investigate the velocity field in the vertical center channel plane. The present work is also concerned with computational fluid dynamics (CFD) simulation by employing large Eddy simulation (LES) turbulence...

... eddy viscosity in modeling of scalar flux and directly improves the turbulent scalar flux prediction. film cooling anisotropic eddy viscosity turbulent scalar flux PIV PSP As the energy demand of the whole world rises, gas turbine has become an indispensable power-equipment in many...

.... Editor: Phillip M. Ligrani. 01 07 2012 05 01 2013 Based on combined particle image velocimetry (PIV) and numerical simulation, the flow and heat transfer characteristics of a single jet impinging on a dimpled surface for D j / D  = 0.318, 0.5, 1.045; δ/D  = 0.1, 0.2, 0.3; Re j...

... is the driving force of the airflow of the engine compartment. Since the time scale of the flow at the vents is relatively large, the PIV measurements at the vents were conducted at 8 Hz of the laser pulse frequency with the time interval between the two laser pulses set to 2.2 ms. For the measurements...

... deg to 15 deg, and four time periods were employed (30 min, 60 min, 90 min, and 120 min) for three established Rayleigh numbers ( 3 × 10 4 , 6 × 10 4 , and 1 × 10 5 ). High purity glycerin was used as the working fluid, and particle image velocimetry (PIV) was employed to obtain the velocity fields...