欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为揭示搅拌流内夹带液滴的产生机理和定量规律，基于气液界面Kelvin．Helmholtz不稳定性理论，结合气液界面波波峰的力平衡条件，建立能够反映液滴夹带物理意义的液滴夹带率模型。对该模型行定量和定性验证，系统研究液滴夹带率受气液相流速、管径以及压力的影响规律。搅拌流内界面波主要受到气相拖曳力、重力以及表面张力的影响，认为当波峰所受合力为0时，界面波产生最大夹带量；液滴夹带率随着管径、液相流量的增加而增加，随着气速、压强的增加而减小；所提出的液滴夹带率模型，引入修正系数以考虑气速、液速以及压力的影响，较好预测了搅拌流内液滴夹带率。
英文摘要：
To investigate physical behavior and quantitative prediction for the drop entrainment in chum flow, an analytical model is established based on both the Kelvin-Helmholtz instability theory and a force balance on the wave crest. The proposed model is verified qualitatively and quantitatively and the impact of the gas and liquid flow rate, pipe diameter and pressure on the drop entrainment rate is analyzed in detail. The interfacial wave in chum flow is forced by the gas drag, gravity and interfacial tension. The maximum drop entrainment appears if the resultant force acting on the wave crest balances to zero. The drop entrainment rate increases with the increase of pipe diameter and liquid mass flow rate, but decreases with the increase of gas velocity and pressure. A more accurate formula for the drop entrainment rate in chum flow is proposed by inducing a factor to consider the integrated effect of the gas velocity, liquid velocity and pressure, which can predict well in agreement with the real entrainment process.
同期刊论文项目
同项目期刊论文
Disruption of multidrug resistance protein gene of Rhodobacter capsulatus results in improved photoh
Effect of preferential diffusion and flame stretch on flame structure and laminar burning velocity o
Numerical study of magnesium (Mg) production by the Pidgeon process: Impact of heat transfer on Mg r
Emission characteristics of iso-propanol-gasoline blends in a spark-ignition engine combined with EG
Experimental and modeling study on ignition delay times of DME/n-butane blends at pressure of 2.0 MP
Hydrogen production by sewage sludge gasification in supercritical water with a fluidized bed reacto
First-principles calculations of Cd1-xZnxS doped with alkaline earth metals for photocatalytic hydro
Emission characteristics of a spark-ignition engine fuelled with gasoline-n-butanol blends in combin
Experimental study on performances and emissions in a low-speed light-duty diesel engine fuelled wit
Experimental study on the performance of and emissions from a low-speed light-duty diesel engine fue
Study on laminar flame speed and flame structure of syngas with varied compositions using OH-PLIF an
Experimental study on direct contact condensation of stable steam jet in water flow in a vertical pi
Redesign of a Water Heating System Using Evacuated Tube Solar Collectors: TRNSYS Simulation and Tech
Factors affecting corrosion behavior of SS316L as bipolar plate material in PEMFC cathode environmen
Highly efficient visible-light-driven photocatalytic hydrogen production from water using Cd0.5Zn0.5
Visible photoactivity and antiphotocorrosion performance of PdS-CdS photocatalysts modified by polya
Experimental and Modeling Study on Ignition Delay Times of Dimethyl Ether/Propane/Oxygen/Argon Mixtu
Charge separation in facet-engineered chalcogenide photocatalyst: a selective photocorrosion approac
Surface Engineered Doping of Hematite Nanorod Arrays for Improved Photoelectrochemical Water Splitti
Hydrogen production from glycerol by supercritical water gasification in a continuous flow tubular r
Shock Tube Measurements and Kinetic Investigation on the Ignition Delay Times of Methane/Dimethyl Et
In Situ Photochemical Synthesis of Zn-Doped Cu2O Hollow Microcubes for High Efficient Photocatalytic
An experimental and kinetic modeling study of n-propanol and i-propanol ignition at high temperature
Flame front instabilities of outwardly expanding iso-octane/n-butanol-air flames at elevated pressur
Experimental and numerical investigation on diluted DME flames: Thermal and chemical kinetic effects
Efficient Photocatalytic Hydrogen Evolution Under Visible Light Over a Mesoporous Titania Crystalliz
CdS/CdSe Core-Shell Nanorod Arrays: Energy Level Alignment and Enhanced Photoelectrochemical Perform
CaTaO2N-CaZrO3 solid solution: Band-structure engineering and visible-light-driven photocatalytic hy
Comparative investigation on droplet evaporation models for modelling spray evaporation in crossflow
Synthesis of CdS/CNTs photocatalysts and study of hydrogen production by photocatalytic water splitt
An experimental investigation of sewage sludge gasification in near and super-critical water using a
Theoretical analysis of the characteristics of the solid oxide fuel cells with a bi-layer electrolyt
Effect of n-pentanol addition on the combustion performance and emission characteristics of a direct
Experimental and numerical study on laminar flame characteristics of dimethyl ether-methane-air mixt
Ag3PO4 photocatalyst: Hydrothermal preparation and enhanced O-2 evolution under visible-light irradi
Effects of fuel constituents and injection timing on combustion and emission characteristics of a co
Single-Crystal Nanosheet-Based Hierarchical AgSbO3 with Exposed {001} Facets: Topotactic Synthesis a
Boiling coal in water: Hydrogen production and power generation system with zero net CO2 emission ba
Controllable synthesis of double layered tubular CdSe/ZnO arrays and their photoelectrochemical perf
Hydrogen production by non-catalytic partial oxidation of coal in supercritical water: Explore the w
Surface passivation of undoped hematite nanorod arrays via aqueous solution growth for improved phot
Enhanced photocatalytic hydrogen production activity of chromium doped lead niobate under visible-li
Shock Tube Measurements and Kinetic Study on Ignition Delay Times of Lean DME/n-Butane Blends at Ele
ZnS/ZnO heterojunction as photoelectrode: Type H band alignment towards enhanced photoelectrochemica
Twin-induced one-dimensional homojunctions yield high quantum efficiency for solar hydrogen generati
CYO-BZCYO composites with enhanced proton conductivity: Candidate electrolytes for low-temperature s
期刊信息
位置：