Results 31 to 40 of about 4,348,404 (302)

Experimental investigation of the film cooling performance by triangular-shaped thin plates on inclined cylindrical holes

Frontiers in Energy Research, 2022
Experimental investigations have been conducted to improve the cooling effectiveness of film-cooling technology. A multiple row of cylindrical holes at the flat surface was considered by inclining the holes at 35° along the streamwise direction.
Jaemun Choi, Jaehun Choi, Hwabhin Kwon, Hoyong Jang, Heesung Park, Heesung Park   +5 more
doaj   +1 more source

Experimental Analysis of Flow Boiling in Horizontal Annulus—The Effect of Heat Flux on Bubble Size Distributions

Energies, 2022
Subcooled flow boiling was experimentally investigated in a horizontal annulus with a temperature-controlled boiling surface and transparent outer pipe facilitating visualization.
Boštjan Zajec, Leon Cizelj, Boštjan Končar   +2 more
doaj   +1 more source

The influence of the installation position of serrated tabs on the flow characteristics of a 2:1 rectangular jet

Nihon Kikai Gakkai ronbunshu, 2020
The effect of the installation position of serrated tabs on the flow characteristics of a rectangular jet was studied experimentally. The serrated tabs, i.e.
Riku OUCHI, Takahiro KIWATA, Takaaki KONO, Hiroshi TERAMOTO   +3 more
doaj   +1 more source

Digitalization and Quantitative Flow Visualization of Surrounding Flow over a Specially-Shaped Column-Frame by Luminescent Mini-Tufts Method

Aerospace, 2022
The luminescent mini-tufts method is widely used for flow visualization for quantitative field analysis. A set of numerical methods for digitalization of 3D surfaces surrounding flows with luminescent mini-tufts has been developed in this study.
Shuang Ma, Lin Chen
doaj   +1 more source

Effects of polymer addition on transition and length scales of flow structures in transitional channel flow

Journal of Fluid Science and Technology, 2023
The effect of polymer addition on transition to turbulence in a two-dimensional water-flow channel was experimentally investigated by flow visualization using reflective flakes.
Sattaya YIMPRASERT, Kentaro KATO, P. Henrik ALFREDSSON, Masaharu MATSUBARA   +3 more
doaj   +1 more source

Influence of Cross-Sectional Configuration on the Longitudinal Vortex Excitation of the Upstream Cylinder in Cruciform Two-Cylinder System

Journal of Fluid Science and Technology, 2006
In earlier works by the present authors, it was shown that a large cross-flow excitation is induced to a circular cylinder by setting another cylinder downstream in a cruciform arrangement with a certain gap between them, caused by longitudinal vortices ...
Naoto KATO, Mizuyasu KOIDE, Tsutomu TAKAHASHI, Masataka SHIRAKASHI   +3 more
doaj   +1 more source

Vortex Breakdown in a Closed Cylindrical Container with a Rotating or Stationary Conical Endwall

Journal of Fluid Science and Technology, 2010
A visualization study is made of flow of a constant-density viscous fluid in a closed cylindrical container. Fluid motions are generated by the rotation of one of its endwalls.
Kazuyuki FUJIMURA, Hide S. KOYAMA, Kwon Sang HWANG, Jae Min HYUN   +3 more
doaj   +1 more source

Trajectory-Augmented Visualization of Lagrangian Coherent Structures in Unsteady Flow

, 2010
The finite-time Lyapunov exponent (FTLE) field can be used for many purposes, from the analysis of the predictability in dynamical systems to the topological analysis of timedependent vector fields.
Falk, Martin, Sadlo, F., Weiskopf, D., Seizinger, A., Üffinger, M.   +4 more
core   +2 more sources

Decay of Vorticity in Separated Shear Layer

Journal of Fluid Science and Technology, 2010
In this study, process of vorticity decay caused by viscous interaction in a separated shear layer was investigated based on velocity measurements and flow visualization in the immediate vicinity of the separation point of a test body. The experiment was
Katsumi MIYAKOSHI, Hiroyuki HANIU, Sangil KIM, Kazunori TAKAI, Mohammad Rofiqul ISLAM   +4 more
doaj   +1 more source

Soap Film Visualization of a 10 cm-Span Flapping Wing

Fluids, 2021
Flapping wing micro-air-vehicles (FWMAVs) animate the small-space dexterous flight, hovering, and energy-saving characteristics of birds and insects, and are believed to have enlightenment for the development of bionic flight in the future.
Lung-Jieh Yang, Chandrashekhar Tasupalli, Reshmi Waikhom, Nikhil Panchal   +3 more
doaj   +1 more source