Results 1 to 10 of about 2,215,497 (314)

Comparative Study of OpenFOAM Solvers on Separation Pattern and Separation Pattern Transition in Overexpanded Single Expansion Ramp Nozzle [PDF]

Journal of Applied Fluid Mechanics, 2023
Flow separation in overexpanded single expansion ramp nozzles (SERN) involves complex phenomena, such as shock waves, expansion waves, turbulent boundary layers, and shear layers.
T. Yu, Y. Yu, Y. P. Mao, Y. L. Yang, S. L. Xu   +4 more
doaj   +1 more source

Experimental study on aerodynamic sound generated from flow around a forward facing step

Journal of Fluid Science and Technology, 2023
Aerodynamic noise in high frequency band related in the flows around A-pillar is easily propagated to the cabin of the automobile. Understanding of the characteristics of the aerodynamic noise is needed to reduce the cabin noise.
Yoshihiro SHIRASU, Yasumasa SUZUKI, Chisachi KATO   +2 more
doaj   +1 more source

Measurement of wall shear stress on an airfoil surface by using the oil film interferometry with PIV analysis applied to Fizeau fringes

Journal of Fluid Science and Technology, 2023
In this study, oil film interferometry (OFI) was applied to the flow around the suction surface of a two-dimensional airfoil under high lift conditions to measure the wall shear stress.
Tatsuhiko IMAI, Kenya KONDO, Yasumasa SUZUKI, Yuya MIKI   +3 more
doaj   +1 more source

Wall-Modeled Large Eddy Simulation and Detached Eddy Simulation of Wall-Mounted Separated Flow via OpenFOAM

Aerospace, 2022
Considering grid requirements of high Reynolds flow, wall-modeled large eddy simulation (WMLES) and detached eddy simulation (DES) have become the main methods to deal with near-wall turbulence.
Xiang Ren, Hua Su, Hua-Hua Yu, Zheng Yan
doaj   +1 more source

Efficient Heat Transfer Augmentation in Channels with Semicircle Ribs and Hybrid Al₂O₃-Cu/Water Nanofluids

Nanomaterials, 2022
Global technological advancements drive daily energy consumption, generating additional carbon-induced climate challenges. Modifying process parameters, optimizing design, and employing high-performance working fluids are among the techniques offered by ...
Hussein Togun, Raad Z. Homod, Zaher Mundher Yaseen, Azher M. Abed, Jameel M. Dhabab, Raed Khalid Ibrahem, Sami Dhahbi, Mohammad Mehdi Rashidi, Goodarz Ahmadi, Wahiba Yaïci, Jasim M. Mahdi   +10 more
doaj   +1 more source

Leading-Edge Vortex Characteristics of Low-Aspect-Ratio Sweptback Plates at Low Reynolds Number

Applied Sciences, 2021
A sweptback angle can directly regulate a leading-edge vortex on various aerodynamic devices as well as on the wings of biological flyers, but the effect of a sweptback angle has not yet been sufficiently investigated.
Jong-Seob Han, Christian Breitsamter
doaj   +1 more source

Separated Flow Through a Gap Between Two Coaxial Peristaltic Tubes

IEEE Access, 2022
A peristaltic endoscope is a device that could locomote through curving and tortuous spaces where it has many real-life applications in different disciplines e.g., in the field of medicine, it helps in the process of catheterization in curved tubes which
Abd El Hakeem Abd El Naby, A. H. El-Baz
doaj   +1 more source

An Elliptic Blending Turbulence Model-Based Scale-Adaptive Simulation Model Applied to Fluid Flows Separated from Curved Surfaces

Applied Sciences, 2022
On the basis of a previously developed elliptic blending turbulence model (SST–k–ω–φ–α model), a scale-adaptive simulation (SAS) model is developed by following Menter and Egorov’s SAS concept.
Xianglong Yang, Lei Yang
doaj   +1 more source

The effect of slip on the development of flow separation due to a bump in a channel based on a two-fluid turbulence model [PDF]

E3S Web of Conferences
In the paper, two-fluid turbulence model simulations were used to calculate the flow of a statistically two-dimensional turbulent boundary layer over a hump.
Madaliev Murodil, Usmonov Mavlonbek, Otajonov Jamshidbek, Bilolov Inomjan, Otakhanova Zamira, Rajabova Khurshida, Israilov Sharabiddin   +6 more
doaj   +1 more source

A steady separated viscous corner flow [PDF]

, 1991
An example is presented of a separated flow in an unbounded domain in which, as the Reynolds number becomes large, the separated region remains of size 0(1) and tends to a non-trivial Prandtl-Batchelor flow.
McLachlan, Robert
core   +1 more source