Results 1 to 10 of about 60,050 (165)

Distortion Coefficients of the $$\alpha $$-Grushin Plane [PDF]

open access: yesThe Journal of Geometric Analysis, 2022
AbstractWe compute the distortion coefficients of the $$\alpha $$ α -Grushin plane. They are expressed in terms of generalised trigonometric functions. Estimates for the distortion coefficients are then obtained and a conjecture of a measure contraction property condition for the generalised Grushin planes is suggested.
openaire   +5 more sources

Study on the Influence of Radial Inlet Chamber Splitter Blades on the Oblique Flow Compressor Performance

open access: yesEnergies, 2023
The oblique flow compressor is one of the important components in the compressed air energy storage (CAES) system. The structural shape of the radial inlet chamber (RIC) directly affects the compressor performance, and a reasonable RIC design should ...
Jixiang Chen   +6 more
doaj   +1 more source

Comparison and Analysis on the Effects of Oil-Quenching and Salt-Quenching for Carburized Gear Ring [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The most commonly quenching process for carburizing gears is the oil-quenching (OQ) and salt-quenching (SQ), and finite analysis and comparison of OQ and SQ on the carburizing gear ring were performed.
Xin Wang, Jinlong Gu
doaj   +1 more source

Determination of pressure balance distortion coefficient and zero-pressure effective area uncertainties [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2011
The behaviour of piston-cylinder operated pressure balances is characterized by the distortion coefficient λ and zero-pressure effective area A0 which model the variation of a pressure balance’s area in terms of the ...
Ramnath V.
doaj   +1 more source

CFD Analysis of Biofouling Effect on Submarine Resistance and Wake

open access: yesJournal of Marine Science and Engineering, 2023
It is well known that biofouling increases a ship’s resistance and nominal wake. For submarines, any change to the circumferential variation of the nominal wake in the propeller plane will affect the variation of the flow over the propeller blade, and ...
I Ketut Aria Pria Utama   +4 more
doaj   +1 more source

Locally univalent functions and coefficient distortions [PDF]

open access: yesPacific Journal of Mathematics, 1978
We look at functions \(f(z) = z + \displaystyle\sum_{n=2}^\infty a_nz^n\) satisfying \(\displaystyle\sum_{n=2}^\infty n \vert a_n\vert > 1\) and determine conditions for which the arguments of the coefficients may vary without affecting the univalence of the function. A bound on the radius of starlikeness for the convolution of functions taken from the
Silverman, H.   +2 more
openaire   +2 more sources

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

open access: yesمجله 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   +2 more
doaj   +1 more source

Harmonic Influencing Factors and Their Characterization Under Black Start Mode of Floating Power Station

open access: yes发电技术, 2022
When floating power stations use static frequency converters to black-start floating power station units, the harmonic effects are more serious than onshore power stations due to the isolated grid system and the limited electrical structure.
LIU Zhongkang   +3 more
doaj   +1 more source

Numerical Simulations Study on the Effect of Propeller Slipstream on Inlet Flow Field for a Turboprop Aircraft

open access: yesHangkong gongcheng jinzhan, 2020
The accelerating effect, viscous effect, and rotating effect of the propeller slipstream are of significant influences on the performance of the inlet.
WANG Limin, ZHANG Yanjun
doaj   +1 more source

Experimental and numerical investigation on total pressure distortion generated by a rectangular movable flat baffle

open access: yesAdvances in Mechanical Engineering, 2021
A distortion generator equipped with a motor-activated movable flat baffle was installed just upstream of a rectangular plenum entrance to investigate the effects of inlet total pressure distortion on the stability and performance of an auxiliary power ...
Baofeng Tu   +4 more
doaj   +1 more source

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