Results 41 to 50 of about 13,763 (262)

Comparison of VLES and LES Turbulence Modeling for Swirling Turbulent Flow

Journal of Applied Fluid Mechanics, 2020
Swirling flow has been widely used in gas turbine and aero-engine combustor to stabilize the flame. However, accurate numerical prediction of the swirling turbulent flow is difficult due to complex vortex movement in the flow, and turbulence modeling is ...
P. Tiwari, Z. Xia, X. Han
doaj  

Planar Pressure Field Determination in the Initial Merging Zone of an Annular Swirling Jet Based on Stereo-PIV Measurements

Sensors, 2008
In this paper the static pressure field of an annular swirling jet is measured indirectly using stereo-PIV measurements. The pressure field is obtained from numerically solving the Poisson equation, taken into account the axisymmetry of the flow.
Eric Van den Bulck, Maarten Vanierschot
doaj   +1 more source

Methyl esters selectivity of transesterification reaction with homogenous alkaline catalyst to produce biodiesel in batch, plug flow, and continuous stirred tank reactors [PDF]

, 2014
Selectivity concept is essential in establishing the best operating conditions for attaining maximum production of the desired product. For complex reaction such as biodiesel fuel synthesis, kinetic studies of transesterification reaction have revealed ...
Nasir, N. F., Z. Yaakob, N. F. Nasir, Kamarudin, S. K., W. Daud, W. R., Yaakob, Z., W. R. W. Daud, S. K. Kamarudin   +7 more
core   +1 more source

Single string cavitation and swirling flow in a nozzle and a hollow-cone spray

Journal of Fluid Science and Technology
Single string cavitation (SC) and a swirling flow around it may occur in a fuel injector of diesel engines at the moment of low needle lift, if the tip of the needle valve is close to the nozzle entrance.
Dongping SHEN, Akira SOU, Yoshitaka WADA, Yoshiharu UEKI   +3 more
doaj   +1 more source

Investigation of the influence of swirl on a confined coannular swirl jet [PDF]

, 2010
Large Eddy Simulations are used to model a turbulent confined coannular combustor and examine the effects of swirl on the flow field and mixing. Three separate simulations with relatively high mesh resolutions and different swirl numbers have been ...
Jenkins, K.W., Ranga Dinesh, K.K.J., Kirkpatrick, M. P., Jenkins, Karl W., Ranga Dinesh, K. K. J., Kirkpatrick, M.P.   +5 more
core   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Modelling of turbulent swirling flows [PDF]

, 2004
This thesis investigates the predictability of non-reacting and reacting anistropic turbulent, swirling flows using popular turbulence models with a robust numrical procedure. The performance of these turbulence models is assessed and compared against
Jones, Lee Nicholas
core  

RNA‐Binding Protein RBM25 Targets the mRNA Stability of GTPase Rab22a to Restrict Viral Entry and Infection

Advanced Science, EarlyView.
This study identifies RNA‐binding protein RBM25 as a broad‐spectrum antiviral factor acting independently of type I interferon. It blocks viral entry by suppressing GTPase Rab22a via the RC3H1‐mediated destabilization of Rab22a mRNA. Viral downregulation of RBM25 enhances GTPase Rab22a expression and viral entry, revealing an unreported post ...
Yingying Ding, Huiying Chen, Yuyu Jiang, Chunyan Zhao, Jie Bai, Yan Xiang, Zeting Wang, Xixi Wang, Bing Rui, Wanda Tang, Yue Ding, Zhenzhen Zhan, Yunkai Zhang, Xingguang Liu   +13 more
wiley   +1 more source

Heat transfer from swirling impinging jets [PDF]

, 1980
This thesis is concerned with the determination of the local and average mass/heat transfer--from swirling jets impinging orthogonally onto flat surfaces.
Mahmood, M.
core  

Production of metal powders by gas atomization using swirl and non-swirl nozzles

Nihon Kikai Gakkai ronbunshu, 2022
Gas atomization, in which high-pressure gas jet impinges on molten metal stream from the melt tube to atomize it, is a popular method of producing fine metal powders. In this study, we focused on a swirling flow of the injection gas as a factor affecting
Kazuki YOSHIMURA, Kazuya SAITO
doaj   +1 more source