The inlet fogging effects on the stable range of a NASA transonic compressor stage, Stage 35, are numerically simulated and analyzed in this paper. 3D two-phase flow fields stage investigated under different operating conditions with varying levels injected water rates droplets sizes. special attention is given to stall choking points investigate changes as result wet compression conditions. preliminary results indicate that has either and/or range. change depends rate diameters.

 Abstract—As wireless sensor networks are used extensively in environment and habitat monitoring, the large volume of data transmission can increase workload nodes reduce their useful lifetime. The compressive sampling techniques have been proposed to when is sparse certain domain. While finding optimal routing path that minimizes traffic an NP-complete problem, a near-optimal protocol literature requires omniscient knowledge entire network thus incurs extensive message exchanges real...

The inlet fogging effects on the stable range of a NASA transonic compressor stage, Stage 35, are numerically simulated and analyzed in this paper. 3-D two-phase flow fields stage investigated under different operating conditions with varying levels injected water rates droplets sizes. special attention is given to stall choking points investigate changes as result wet compression conditions. preliminary results indicate that has either and/or range. change depends flowrate diameters.

In this paper, a CFD model is used to simulate the effect of spray atomization at compressor inlet on multistage axial subsonic compressor. Special attention paid change characteristics with wet compression under different rotating speeds gain characteristic lines compression. The effects pneumatic crushing and blade-wall-collision water droplets droplet trajectories are contrasted analyzed conditions. Then, whole/stage-by-stage performances flow field also investigated dry cases near design...

Wet compression technology is an economic and effective approach to improve the performance of gas turbine. In process wet compression, turbine engine will ingest a certain amount water, which can influence overall engine. Thermodynamic compressor are influenced significantly by heat mass transfer injected water droplets. This study new research investigating theoretically droplets effects on characteristics. It focuses aerodynamic thermodynamic two-phase flow in stage. The application...

Liquid sloshing in ship tanks would have a direct effect on dynamic stability, and thus is of great importance for navigation safety. To calculate the sloshing-induced force real tanks, this paper presents an approach to numerically simulate liquid-sloshing complex using moving particle semi-implicit (MPS) method. The calculated used investigate different excitation conditions which realistic motions under loading been taken into account. Simulation results show that maximum much bigger than...

This paper presents a Viscous Controlled Vortex (VCV) design practice of an experimental turbine. The (CV) method was modified to take the local viscous losses into account. began with analysis initial turbine geometry 1.5-stage turbine, which designed by developed CV approach based on prescribed pressure distribution resolve circulation requirements. Then loss corrections were combined terms equations and distributions are refined. optimization axial test demonstrates effectiveness this...

The throttling pipe type air damping spring with auxiliary chamber is the key elastic element in suspension system. flow between rubber bellows and two chambers causes to have multiple nonlinear characteristics. turbulence model of main models are established considering laminar turbulent states pipe. linearized near operating equilibrium point system, dynamic characteristic an obtained. parameters equivalent stiffness coefficient proposed. Using different diameter, length as samples, test...

The emission of condensable particulate matter (CPM) and its environmental impacts are arousing concern in China with the effective control filter (FPM). This study established an up-to-date unit-based CPM inventory for industrial sectors systematically evaluated effects on primary secondary PM2.5 China. In 2020, national emissions total was estimated to be 0.98 Tg uncertainty from −49% 66%, including 0.62 organic (CPMorg) 0.36 inorganic (CPMin). Totals 62%, 23% 8% were emitted coal-fired...

Abstract In this study, the thickness of water film, which is frequently formed on compressor blade surface, was investigated. Simultaneously, its movement and extra torque demand were provided by a simulation model code. Having taken into account transformation in blade’s profile feature films, working medium characteristic stage analyzed. addition, formation, development film simulated using unsteady numerical methods various injected conditions. Movement characteristics droplets cascade...