Vlad Rinsky

Vlad Rinsky
Technion - Israel Institute of Technology | technion · Faculty of Mechanical Engineering

About

11
Publications
2,733
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
103
Citations

Publications

Publications (11)
Article
Full-text available
Since effective thermal insulation of buildings could significantly decrease energy consumption worldwide, this study examined the potential of concrete tiles with complex geometries at improving thermal performance in building envelopes. The study focused on air flow characteristics that occur near the external surface of the tile, and their influ...
Article
Full-text available
A pulsating round jet having a constant average mass flow rate may increase heat transfer in comparison to a steady jet impinging on a surface. However, while several studies have focused on the heat transfer, flow field characteristics remain poorly understood. Here, the mean and turbulent flow characteristics of a pulsating, round jet impinging o...
Article
Full-text available
Flow in the wake of a sphere has been studied for at least the last hundred years. The three-dimensional (3-D) flow structure has been observed many times using dye visualization and prior to the direct numerical simulations by Johnson & Patel ( J. Fluid Mech. , vol. 378, 1999, pp. 19–70), its structure at a Reynolds number of approximately 300, wa...
Article
Full-text available
Heat transfer and flow field characteristics of a pulsating round air jet, impinging on a flat heated target surface were measured and compared to those of a steady impinging jet. The jet was partially confined and the target surface stand-off distance equaled two nozzle diameters, D. Investigated Reynolds numbers ranged from Re = 4,606 to 13,513,...
Article
Full-text available
The 3D flow field in the wake of a tethered sphere (D=6 mm, m ∗ =7.77, L ∗ =4.1) undergoing vortex induced vibrations (VIV) in a water tunnel, was measured using tomographic particle image velocimetry (tomo-PIV). The flow field was investigated for four different reduced velocities ranging between 3.6<U ∗ <13.2, corresponding to Reynolds numbers ra...
Article
Full-text available
Few studies have investigated the flow characteristics of jets impinging on dimpled surfaces that may increase or decrease their heat transfer capabilities. Here, particle image velocimetry (PIV) measurements have been performed on a round jet (diameter D) impinging on a surface having large spherical dimples (opening size d), D/d = 0.83. In partic...
Article
Full-text available
Dimpled surfaces may enhance or decrease heat transfer compared to smooth surfaces. Here, the flow field of a round, axisymmetric air jet (diameter D) impinging on smooth and dimpled target surfaces (positioned at H/D ≈ 5) was measured using particle image velocimetry (PIV). Reynolds numbers based on the jet exit velocity and D were, Re = 1,473, 6,...
Article
Full-text available
Impinging jets are widely used in cooling applications. Here, particle image velocimetry measurements were performed to study the flow field (focusing on the wall jet) and vortex characteristics of a round air jet, impinging on a flat surface at three Reynolds numbers, Re = 1,300, 6,260 and 12,354 (based on nozzle diameter, D, and jet exit velocity...
Conference Paper
Full-text available
This paper presents the results of an investigation into the potential of complex geometry to create a microclimate by changing the airflow on building façades. The current stage of the research focused on developing a setup and a methodology for examining and comparing the results of a physical wind tunnel test to those of CFD (computational fluid...

Network

Cited By