Results 31 to 40 of about 11,840,309 (376)

The influence of a coupled casing on the performance of a multistage compressor under inlet distortion conditions

open access: yesAIP Advances, 2023
In order to increase the stalling margin of a compressor under different inlet conditions, especially under inlet distortion conditions, a new coupled casing processing structure is proposed in this paper.
Hong Xie   +3 more
doaj   +1 more source

Numerical Investigation for the Impact of Single Groove on the Stall Margin Improvement and the Unsteadiness of Tip Leakage Flow in a Counter-Rotating Axial Flow Compressor

open access: yesEnergies, 2017
A low-speed counter-rotating axial flow compressor (CRAC) with single circumferential grooved casing treatment (CT) was investigated numerically. Both steady and time-accurate numerical calculations were performed to study the effects of the single ...
Xiaochen Mao, Bo Liu, Hang Zhao
doaj   +1 more source

Treatment of Abortion, with Cases [PDF]

open access: yesThe Boston Medical and Surgical Journal, 1885
n ...
openaire   +3 more sources

Prevention or treatment? The case of malaria

open access: yesEconomics Letters, 2015
AbstractWe present a simple theoretical model of household preventive behavior in response to malaria prevalence. The novelty is to include a trade-off between prevention and treatment in an otherwise standard epidemiological model of disease transmission, which depends on the relative price of treatment with respect to prevention.
Berthélemy, Jean-Claude   +2 more
openaire   +4 more sources

Treatment Strategies for Chronic Cases [PDF]

open access: yesPain Research and Management, 2003
The treatment of chronic somatic pain, including pain referred to the head, neck, shoulder girdle and upper limb from somatic structures, is addressed. Levels of evidence for the various treatments that have been prescribed for chronic whiplash associated disorders are considered.
openaire   +3 more sources

Law and countermeasures for the casing damage of oil production wells and water injection wells in Tarim Oilfield

open access: yesPetroleum Exploration and Development, 2011
Based on the analyses of the situation and distribution of casing damage in the Tarim Oilfield, it was considered that there are six major factors causing the casing damage: (1) There are flowing rock or highly permeable formation around the casing; (2 ...
Wang Tao   +11 more
doaj   +1 more source

Effect of a Recirculating Type Casing Treatment on a Highly Loaded Axial Compressor Rotor

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2019
The tip leakage flow over the blades of an axial compressor rotor adversely affects the axial rotor efficiency and can determine the onset of tip leakage stall.
Motoyuki Kawase, Aldo Rona
doaj   +1 more source

Mechanism of Stability Enhancement with Shallow ‎Reversed Slot-Type Casing Treatment in a Transonic ‎Compressor ‎

open access: yesJournal of Applied Fluid Mechanics, 2021
In this paper, the influence of a shallow reversed slot-type casing treatment on the performance of a tip-critical transonic compressor has been numerically investigated. Firstly, the complex flow fields in the rotor tip region are studied in details. It
Z. D. Chi, W. L. Chu, H. G. Zhang
doaj  

imulation of the flow in the fan stage of a turbofan engine with annular grooves casing treatment

open access: yesАвіаційно-космічна техніка та технологія
The subject of this study is the working process of the axial fan under the annular groove casing treatment of the turbofan engine. The object of the present study is to investigate the fan impeller of a turbofan engine subjected to an annular groove ...
Andrii Duliepov, Anton Balalaiev
doaj   +1 more source

A Review of New Experimental Technologies for the Development of Advanced Fans with High Bypass Ratio

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2018
The paper reviews new experimental technologies for the development of advanced fans with high bypass ratios. Most of those developments are carried out in a highly specialized acoustic test facility available at the Central Institute of Aviation Motors (
Victor Mileshin
doaj   +1 more source

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