Calculation grid and turbulence model for numerical simulating pressure fluctuations in high-speed train tunnel
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Central South University"
DOI: 10.1007/s11771-019-4220-6
Abstract: Calculation grid and turbulence model for numerical simulating pressure fluctuations in a high-speed train tunnel are studied through the comparison analysis of numerical simulation and moving model test. Compared the waveforms and peak-peak values of… read more here.
Keywords: turbulence model; model; numerical simulating; pressure fluctuations ... See more keywords
Characteristics of base pressure fluctuations of a typical missile configuration with a propulsive jet
Sign Up to like & getrecommendations! Published in 2017 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2017.10.021
Abstract: Abstract Experiments were carried out to investigate the pressure fluctuations in the base region of a typical missile configuration at a freestream Mach number of 0.7 in the presence and absence of a propulsive jet.… read more here.
Keywords: missile configuration; typical missile; propulsive jet; pressure fluctuations ... See more keywords
Study on the characteristics of the pressure fluctuations and their contribution to turbulence kinetic energy
Sign Up to like & getrecommendations! Published in 2021 at "Atmospheric Research"
DOI: 10.1016/j.atmosres.2021.105634
Abstract: Abstract In this study, the integral and microscopic turbulent statistical characteristics of pressure fluctuations, applicability of the pressure gradient and pressure flux divergence to the Monin-Obukhov similarity theory (MOST), and contribution of the pressure transport… read more here.
Keywords: pressure fluctuations; transport term; pressure transport; pressure ... See more keywords
Effect of working conditions and diffuser setting angle on pressure fluctuations within a centrifugal pump
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2018.11.011
Abstract: Abstract Large Eddy Simulations (LES) were carried out on a centrifugal pump in order to investigate the effect on pressure fluctuations through rotating and stationary channels by both flow-rate conditions and orientation of the diffuser… read more here.
Keywords: effect; pressure fluctuations; rate; flow rate ... See more keywords
Mathematical analysis of characteristic pressure fluctuations in a bubbling fluidized bed
Sign Up to like & getrecommendations! Published in 2018 at "Powder Technology"
DOI: 10.1016/j.powtec.2018.04.030
Abstract: Abstract Mathematical analysis methods including statistical, power spectral, and chaos analysis were used to analyze the pressure fluctuations in a bubbling fluidized bed. Different characteristic indicators of pressure fluctuations were calculated such as average pressure,… read more here.
Keywords: gas velocity; fluctuations bubbling; pressure fluctuations; pressure ... See more keywords
Pressure fluctuations in vaneless space of pump-turbines with large blade lean runners in the S- shaped region
Sign Up to like & getrecommendations! Published in 2020 at "Renewable Energy"
DOI: 10.1016/j.renene.2020.02.097
Abstract: Abstract A pumped hydro storage energy station (PHES) is an effective and reliable station which was quickly develop. To obtain better performances, blade leans have been employed recently on pump-turbine runners. To figure out the… read more here.
Keywords: blade leans; vaneless space; shaped region; pressure fluctuations ... See more keywords
Optimization of blade high-pressure edge to reduce pressure fluctuations in pump-turbine hump region
Sign Up to like & getrecommendations! Published in 2022 at "Renewable Energy"
DOI: 10.1016/j.renene.2021.09.013
Abstract: Abstract Hump characteristic is one of unique hydraulic instabilities of pump-turbines, which restricts the stable and safe operating range of the units. High-amplitude pressure fluctuations could be observed in the hump region, leading to hydraulic… read more here.
Keywords: hump region; optimization; pressure fluctuations; pressure ... See more keywords
Reynolds-number dependence of wall-pressure fluctuations in a pressure-induced turbulent separation bubble
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.694
Abstract: Direct numerical simulations are used to examine the behaviour of wall-pressure fluctuations $p_{w}$ in a flat-plate turbulent boundary layer with large adverse and favourable pressure gradients, involving separation and reattachment. The Reynolds number $Re_{\unicode[STIX]{x1D703}}$ based… read more here.
Keywords: reynolds number; separation; unicode stix; pressure fluctuations ... See more keywords
Experimental evidence characterizing pressure fluctuations at the seafloor-water interface induced by an earthquake
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-34578-2
Abstract: An unusual combination of a laboratory experiment and in situ measurement of pressure fluctuations during an earthquake allows us to resolve some uncertainties in bottom pressure recorders (BPRs). In situ BPRs are usually contaminated by… read more here.
Keywords: pressure; water; experimental evidence; situ bprs ... See more keywords
Letter: The effects of streamwise system rotation on pressure fluctuations in a turbulent channel flow
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Fluids"
DOI: 10.1063/1.5048800
Abstract: In this letter, we report the modulating effects of streamwise system rotation on both the amplitude and the wavenumber of pressure fluctuations in a plane channel flow. The analysis of the pressure field is conducted… read more here.
Keywords: rotation; streamwise; pressure fluctuations; pressure ... See more keywords
Capturing multifractality of pressure fluctuations in thermoacoustic systems using fractional-order derivatives.
Sign Up to like & getrecommendations! Published in 2021 at "Chaos"
DOI: 10.1063/5.0032585
Abstract: The stable operation of a turbulent combustor is not completely silent; instead, there is a background of small amplitude aperiodic acoustic fluctuations known as combustion noise. Pressure fluctuations during this state of combustion noise are… read more here.
Keywords: multifractality pressure; combustion noise; fractional order; pressure fluctuations ... See more keywords