Results 31 to 40 of about 113,773 (229)

Flow distortion measurements in convoluted aero engine intakes [PDF]

open access: yes, 2015
The unsteady flowfields generated by convoluted aero engine intakes are major sources of instabilities that can compromise the performance of the downstream turbomachinery components.
Chiereghin, Nicola   +2 more
core   +2 more sources

Pretreatment Pan-Immune-Inflammation Value Efficiently Predicts Survival Outcomes in Glioblastoma Multiforme Patients Receiving Radiotherapy and Temozolomide

open access: yesJournal of Immunology Research, 2022
Objectives. The purpose of this study was to determine the predictive significance of pretreatment pan-immune-inflammation value (PIV) in patients with newly diagnosed glioblastoma multiforme (GBM) who received postsurgical radiation (RT) and concurrent ...
Erkan Topkan, Ahmet Kucuk, Ugur Selek
doaj   +1 more source

Split-screen single-camera stereoscopic PIV application to a turbulent confined swirling layer with free surface [PDF]

open access: yes, 2010
An annular liquid wall jet, or vortex tube, generated by helical injection inside a tube is studied experimentally as a possible means of fusion reactor shielding.
Bardet, Philippe M.   +2 more
core   +3 more sources

Studies on Velocity Fields Around the Cavitation Vortices Generated by the Model of a Rotating Blade

open access: yesPolish Maritime Research, 2018
The elimination of hazards caused by cavitation phenomena is an important issue to be considered in the design of process equipment including flow machinery. These hazards are: cavitation erosion, efficiency decrease as well as vibration and noise.
Suchecki Witold
doaj   +1 more source

Flow Field of Turbulent Premixed Combustion in a Cyclone-Jet Combustor

open access: yesJournal of Thermal Science and Technology, 2007
The flow field in highly turbulent premixed combustion has been examined, using a cyclone-jet combustor. The shear-strain rate is obtained by PIV system. Results show that, in combustion field, mean axial velocity does not decay along center axis and RMS
Kazuhiro YAMAMOTO   +4 more
doaj   +1 more source

Quantifying stretching and rearrangement in epithelial sheet migration [PDF]

open access: yes, 2012
Although understanding the collective migration of cells, such as that seen in epithelial sheets, is essential for understanding diseases such as metastatic cancer, this motion is not yet as well characterized as individual cell migration.
Kelley, Douglas H.   +4 more
core   +2 more sources

Pressure from 2D snapshot PIV [PDF]

open access: yesExperiments in Fluids, 2019
In this study, we quantify the accuracy of a simple pressure estimation method from 2D snapshot PIV in attached and separated flows. Particle image velocimetry (PIV) offers the possibility to acquire a field of pressure instead of point measurements. Multiple methods may be used to obtain pressure from PIV measurements, however, the current state-of ...
J. W. Van der Kindere   +3 more
openaire   +4 more sources

A Non‐Reciprocal Architected Porous Medium

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies   +2 more
wiley   +1 more source

PIV Analysis of Ludwig Prandtl's Historic Flow Visualization Films [PDF]

open access: yes, 2010
Around 1930 Ludwig Prandtl and his colleagues O. Tietjens and W. M\"uller published two films with visualizations of flows around surface piercing obstacles to illustrate the unsteady process of flow separation.
Kompenhans, Jürgen, Willert, Christian
core   +1 more source

Critical Parameter Values and Reconstruction Properties of Discrete Tomography: Application to Experimental Fluid Dynamics

open access: yes, 2012
We analyze representative ill-posed scenarios of tomographic PIV with a focus on conditions for unique volume reconstruction. Based on sparse random seedings of a region of interest with small particles, the corresponding systems of linear projection ...
Petra, Stefania   +2 more
core   +1 more source

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