Results 21 to 30 of about 176,939 (311)

An Approach to Calculate Leakage Flow, Stiffness and Damping of Annular Seals in Turbulent Flow Using Lubrication Theory, Part II: Results

open access: yesTribology Online, 2007
This paper is in continuation of its part I. It presents the rotordynamic behavior of a circular seal and multilobe seal for various L/D ratio, taper ratio and eccentricity ratio in the turbulent flow regime considering the effect of fluid inertia.
Satyam Shivam Gautam, Mihir Kumar Ghosh
doaj   +1 more source

Flow-sensitive Leakage Analysis in Mobile Ambients

open access: yesElectronic Notes in Theoretical Computer Science, 2005
AbstractIn this paper, we present a refinement of a Control Flow Analysis aimed at studying information flow security in the the calculus of Mobile Ambients. The improvements are achieved by making the analysis be flow-sensitive: the analysis is able to keep track of temporal dependencies of capabilities application when computing a safe approximation ...
C. BRAGHIN, CORTESI, Agostino
openaire   +3 more sources

Desensitization of Tip Clearance Effects in Axial Flow Turbines

open access: yesJournal of Fluid Science and Technology, 2010
The present study aims to control the leakage flow and total pressure loss in high pressure turbines. A new tip shape is proposed. It is based on the triple squealer shape by adopting a new middle squealer, along the camber line, whose first and last ...
Mohamed EL-GHANDOUR   +2 more
doaj   +1 more source

Quantitative and Qualitative Analysis of Dynamic Cavernosographies in Erectile Dysfunction due to Venous Leakage [PDF]

open access: yes, 1989
Of 521 patients with erectile dysfunction in whom a multidisciplinary approach was used, 145 (27.8%) showed venous leakage as (concomitant) etiology of the impotence in dynamic cavernosography.
Stief, Christian Georg   +1 more
core   +1 more source

Numerical investigation of the effect of leakage flow through erosion-induced clearance gaps of guide vanes on the performance of Francis turbines

open access: yesEngineering Applications of Computational Fluid Mechanics, 2018
Abrasive wear in the clearance gap of guide vanes (GVs) increases the gap size, which deteriorates the flow and causes loss of efficiency. This paper investigates the performance of a Francis turbine including erosion-induced clearance gaps on the GVs ...
Sailesh Chitrakar   +2 more
doaj   +1 more source

Effect of an Axially Offset Impeller on the Transient Physics of Asymmetric Flow in a Double-suction Centrifugal Fan [PDF]

open access: yesJournal of Applied Fluid Mechanics
The impeller of a double-suction centrifugal fan may be subject to axial offset due to assembly or operational failure. The internal flow is asymmetric about the central disc and deteriorates the fan’s performance.
R. Liu, H. Yang, Y. Wei, W. Zhang
doaj   +1 more source

Aeroacoustic Investigation of a Single Airfoil Tip Leakage Flow [PDF]

open access: yesInternational Journal of Aeroacoustics, 2010
Combined near and far field aeroacoustic measurements have been carried out during an original laboratory scale low Mach number (0–0.3) experiment about the tip leakage flow past a single non-rotating airfoil. Such measurements were made possible by the use of a single airfoil located in the potential core of an open jet flow in the anechoic wind ...
Jacob, Marc C.   +3 more
openaire   +6 more sources

Vortex suppression of the tip leakage flow over a NACA0009 hydrofoil via a passive jet induced by the double-control-hole [PDF]

open access: yes, 2021
Tip leakage vortex (TLV) frequently occurring in bladed energy conversion machines may induce flow loss as well as cavitation. The double-curved-hole (DC hole) structures located at the 10%–25% chord near the leading edge of the foil are adopted to ...
Zhang, Guangjian   +5 more
core   +1 more source

HyperGI: Automated Detection and Repair of Information Flow Leakage [PDF]

open access: yes2021 36th IEEE/ACM International Conference on Automated Software Engineering (ASE), 2021
Maintaining confidential information control in software is a persistent security problem where failure means secrets can be revealed via program behaviors. Information flow control techniques traditionally have been based on static or symbolic analyses -- limited in scalability and specialized to particular languages.
Ibrahim Mesecan   +4 more
openaire   +2 more sources

Effect of internal leakage on torque converter characteristics

open access: yesAdvances in Mechanical Engineering, 2020
To understand the effect of internal leakage on the torque field and characteristics of a torque converter (TC), a transient analysis was performed on the internal flow of a TC and the pressure pulsation characteristics of monitoring points in the ...
Xiong Pan   +4 more
doaj   +1 more source

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