Results 11 to 20 of about 3,130,306 (355)

Analysis of the Effect of the Leading-Edge Vortex Structure on Unsteady Secondary Flow at the Endwall of a High-Lift Low-Pressure Turbine

Aerospace, 2023
The horseshoe vortex system at the leading edge of a low-pressure turbine (LPT) has unsteady flow characteristics, and the flow field in the downstream cascade channel also has unsteady characteristics.
Shuang Sun, Jinhui Kang, Zhijun Lei, Zhen Huang, Haixv Si, Xiaolong Wan   +5 more
doaj   +1 more source

Numerical and experimental study of different geometries of expansion-contraction microchannels in particle sorting [PDF]

مجله مدل سازی در مهندسی, 2022
In this paper, a new simulation method (quasi-three-dimensional) is introduced to model devices based on inertial and Magnus forces. Simulations were computed using the COMSOL software.
Hanieh Heidari, Seyed Ali Hosseini,, سید عباس سادات سکاک, rajabpour rajabpour   +3 more
doaj   +1 more source

Investigation of effective parameters on capturing particles by secondary flows in rectangular microchannels [PDF]

مجله مدل سازی در مهندسی, 2021
In recent years, inertial microfluidics (the use of inertial forces in microchannels) have attracted much attention aiming particle separation.
Mohammad Mahdi Ghadiri, Seyed Ali Hosseini,, سید عباس سادات سکاک, Ali rajabpour   +3 more
doaj   +1 more source

Improving the efficiency of a serpentine inlet duct by using of Blowing Jet Vortex Generators flow control technique [PDF]

مجله مدل سازی در مهندسی, 2018
In this research, aerodynamic performance of a double s-shaped serpentine inlet duct is numerically investigated by using of blowing Jet vortex generators flow control technique.
iman Maghsoudi, mostafa mahmoodi, mohammad ali vaziri zanjani   +2 more
doaj   +1 more source

Hydrothermal Investigation of a Microchannel Heat Sink Using Secondary Flows in Trapezoidal and Parallel Orientations

Energies, 2020
Thermal performance enhancement in microchannel heat sinks has recently become a challenge due to advancements in modern microelectronics, which demand compatibility with heat sinks able to dissipate ever-increasing amounts of heat.
Safi Ahmed Memon, Taqi Ahmad Cheema, Gyu Man Kim, Cheol Woo Park   +3 more
doaj   +1 more source

Experimental Study and Conjugate Heat Transfer Simulation of Turbulent Flow in a 90° Curved Square Pipe

Energies, 2020
This paper discusses the turbulent flow and heat transfer from a uniform air flow with high temperature to the outside through a 90° curved square pipe.
Guanming Guo, Masaya Kamigaki, Qiwei Zhang, Yuuya Inoue, Keiya Nishida, Hitoshi Hongou, Masanobu Koutoku, Ryo Yamamoto, Hieaki Yokohata, Shinji Sumi, Yoichi Ogata   +10 more
doaj   +1 more source

Effects of Burst Ratio and Frequency on the Passage Vortex Reduction of a Linear Turbine Cascade Using a Dielectric Barrier Discharge Plasma Actuator

Actuators, 2022
A dielectric barrier discharge plasma actuator was employed to reduce the passage vortex generated in a turbine cascade. This study focused on the burst mode drive of a plasma actuator and examined the relationship between flow field changes and the ...
Takayuki Matsunuma
doaj   +1 more source

Secondary flows in slow granular flows [PDF]

EPJ Web of Conferences, 2017
Recent findings by Krishnaraj and Nott [1] show that a granular material sheared in a cylindrical Couette cell at low shear rates forms a single secondary vortex. The vortex spans the entire width of the Couette cell and has a sense opposite to the centrifugally driven Taylor-Couette vortex in a Newtonian fluid – it is in fact shown to be driven by ...
Dsouza Peter Varun, Krishnaraj K.P., Nott Prabhu R   +2 more
openaire   +2 more sources

Heaping, Secondary Flows and Broken Symmetry in Flows of Elongated Granular Particles [PDF]

, 2015
In this paper we report experiments where we shear granular rods in split-bottom geometries, and find that a significant heap of height of least 40% of the filling height can form at the particle surface.
Börzsönyi, Tamás, Somfai, Ellák, Stannarius, Ralf, Szabó, Balázs, van Hecke, Martin, Wegner, Sandra, Wortel, Geert   +6 more
core   +3 more sources

Control and Entropy Analysis of Corner Flow Separation in a Compressor Cascade Using Streamwise Grooves

Entropy, 2019
Flow separation, which often occurs at the junction of blades and endwalls and seriously limits the aerodynamic performance of turbomachinery, is caused mainly by the boundary layer mixing on the blades and endwall surfaces and the transverse secondary ...
Weilin Yi, Lucheng Ji
doaj   +1 more source