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Numerical simulation of liquid falling film on horizontal circular tubes

Fengdan SUN, Songlin XU, Yongchuan GAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3, Pages 322-328 doi: 10.1007/s11705-012-1296-z

Abstract: The objective of this study is to investigate numerically the flow characteristics of falling film onThe volume of fluid method is used to track the motion of liquid falling film and the gas-liquid interfacedistributions of the upper and lower parts of the tube are not strictly symmetric and non-uniform, 2) the filmmodes are distinguished, and 5) the liquid feed height plays an important role on the formation of fallingfilm.

Keywords： falling film horizontal tube flow characteristics film thickness liquid feeder height

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Heat and mass transfer of ammonia-water in falling film evaporator

Xianbiao BU, Weibin MA, Huashan LI

Frontiers in Energy 2011, Volume 5, Issue 4, Pages 358-366 doi: 10.1007/s11708-011-0161-y

Abstract: To investigate the performance of heat and mass transfer of ammonia-water during the process of fallingfilm evaporation in vertical tube evaporator, a mathematical model of evaporation process was presentedSubsequently, a series of parameters, such as velocity, film thickness and concentration, etc., wereCalculated results show that the average velocity and the film thickness change dramatically at the entrancethat the roll-worked enhanced tube or other enhanced tube can reduce the concentration gradient in the film

Keywords： falling film evaporation ammonia-water heat and mass transfer

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Improved film evaporator for mechanistic understanding of microwave-induced separation process

Xin Gao, Dandan Shu, Xingang Li, Hong Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4, Pages 759-771 doi: 10.1007/s11705-019-1816-1

Abstract: Microwave-induced film evaporation separation process has been reported recently to separate the polarTo carry out these investigations, a novel microwave-induced falling film evaporation instrument wasimprovement of the enhancement effect of microwave-induced separation was observed based on the improved film

Keywords： process intensification microwave falling film evaporation separation azeotrope

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Experiment study of a quartz tube falling particle receiver

Tianjian WANG, Fengwu BAI, Shunzhou CHU, Xiliang ZHANG, Zhifeng WANG

Frontiers in Energy 2017, Volume 11, Issue 4, Pages 472-479 doi: 10.1007/s11708-017-0502-6

Abstract: This paper presents an experimental evaluation of a specially designed falling particle receiver.temperature rise is 212°C, with an efficiency of 61.2%, which shows a good thermal performance with a falling

Keywords： solar thermal electricity central receiver particle receiver experimental research

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Dynamic characteristics of molten droplets and hot particles falling in liquid pool

Liangxing LI, Weimin MA, Huixiong LI, Tingkuan CHEN,

Frontiers in Energy 2010, Volume 4, Issue 2, Pages 246-251 doi: 10.1007/s11708-009-0077-y

Abstract: The falling course of a single droplet or a single hot particle was recorded by a high-speed camera andThe results for the all cases showed that the velocity of a falling droplet/particle decreased rapidlybut rebounded shortly, at the beginning of droplet/particle falling in the coolant.

Keywords： dynamic characteristics molten droplets high-temperature particles fuel and coolant interactions

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Prediction of falling weight deflectometer parameters using hybrid model of genetic algorithm and adaptive

Frontiers of Structural and Civil Engineering Pages 812-826 doi: 10.1007/s11709-023-0940-7

Abstract: A falling weight deflectometer is a testing device used in civil engineering to measure and evaluate

Keywords： falling weight deflectometer modulus of subgrade reaction elastic modulus metaheuristic algorithms

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Experiment and optimal design of a collection device for a residual plastic film baler

Qi NIU,Xuegeng CHEN,Chao JI,Jie WU

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4, Pages 347-354 doi: 10.15302/J-FASE-2015077

Abstract: It is imperative to carry out research on residual plastic film collection technology to solve the seriousThe residual plastic film baler was designed as a package for film strip collection, cleaning and balingand the impurity of film package.The results show that the factors affecting the collection rate of residual film and the impurity ofwas 88.9% and the impurity of residual film package was 14.2% for the baler.

Keywords： residual film collection device collection rate of residual film impurity of film package optimization

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Retrospect and Prospect of Study on Thin Film Lubrication

Ge Jianbin,Zhang Chaohui,Wen Shizhu

Strategic Study of CAE 2003, Volume 5, Issue 7, Pages 84-89

Abstract:

Thin film lubrication (TFL) has been well studied as a new lubrication regime since the 90s of lastof TFL, which involves the origin of the TFL concept, advancement of measuring technique, TFL's film-forming

Keywords： thin film lubrication ordered film film thickness measurement microstructure

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Thin-liquid-film evaporation at contact line

Hao WANG, Zhenai PAN, Zhao CHEN

Frontiers in Energy 2009, Volume 3, Issue 2, Pages 141-151 doi: 10.1007/s11708-009-0020-2

Abstract: regions: a nonevaporating region, where the liquid is adsorbed on the wall; a transition region or thin-filmThe thin liquid film, with thickness from nanometers up to micrometers, covering the transition regionIn this paper, a review was made of the researches on thin-liquid-film evaporation.The major characteristics of thin film, thin-film modeling based on continuum theory, simulations basedon molecular dynamics, and thin-film profile and temperature measurements were summarized.

Keywords： meniscus thin film contact line disjoining pressure evaporation

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Surface-tailoring chlorine resistant materials and strategies for polyamide thin film composite reverse

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5, Pages 564-591 doi: 10.1007/s11705-021-2109-z

Abstract: Polyamide thin film composite membranes have dominated current reverse osmosis market on account of theirsusceptibility of polyamide toward chlorine attack has been regarded as the Achilles’s heel of polyamide thin filmThe advancement in the development of chlorine resistant polyamide thin film composite membranes is reviewed

Keywords： reverse osmosis polyamide thin film composite membranes chlorine resistance surface modification

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Piezoelectric film-actuated motion platform with high resolution

HUA Shunming, ZHANG Hongzhuang, CHENG Guangming, FAN Zunqiang, LIU Jianfang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 265-269 doi: 10.1007/s11465-008-0041-2

Abstract: A piezoelectric film-actuated motion platform with high resolution, which can run in two directions within

Keywords： mathematical stick-slip mechanism piezoelectric film-actuated analysis terrific

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Dynamic analysis of free-surface thin film flows driven by gravity over undulated substrate

Zhaomiao LIU, Xin LIU, Guobin WANG, Hong LIAO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2, Pages 219-225 doi: 10.1007/s11465-010-0010-4

Abstract: This paper studies thin film flows with free surfaces driven by gravity through two types of undulatedcommenced from Navier-Stokes equations and continuity equation, the exact numerical results of free-surface filmfrom the waviness of the substrate planes profile, height of the triangle plane, and change of the filmheight on film flow dynamics properties are shown.

Keywords： waviness triangle height film thickness streamlines separation vortex

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Surface modification by ligand growth strategy for dense copper bismuth film as photocathode to enhance

Frontiers in Energy doi: 10.1007/s11708-023-0893-5

Abstract: However, semiconductor film grown on photoelectrode suffers from numerous challenges, leading to the

Keywords： copper bismuthate photocathode ligand growth strategy dense film PEC

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Numerical studies of dynamic behavior of liquid film on single-layer wire mesh with different wettabilities

Frontiers of Chemical Science and Engineering Pages 1672-1680 doi: 10.1007/s11705-022-2205-8

Abstract: However, the effect of surface wettability on the impaction phenomena at microscale such as liquid filmIn this work, the dynamic behavior of liquid film on the surface of wire mesh was analyzed by computationalThe dynamic behavior of liquid film on the surface of wire mesh can be divided into the following threeThe average liquid film thickness on the surface of hydrophilic wire mesh is 30.02–77.29 μm, and thatThis work provided a basic understanding of liquid film flow at microscale on the surface with various

Keywords： stainless steel wire mesh computational fluid dynamics surface wettability liquid film impacting

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A novel composite coating mesh film for oil-water separation

Futao QIN, Zhijia YU, Xinhui FANG, Xinghua LIU, Xiangyu SUN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 112-118 doi: 10.1007/s11705-009-0149-x

Abstract: Polytetrafluoroethylene-polyphenylene sulfide composite coating mesh film was successfully prepared byThe contact angle of this mesh film is 156.3° for water, and close to 0° for diesel oil and kerosene.The contact angle hysteresis of water on the mesh film is 4.3°.The adhesive force between the film and substrate is grade 0, the flexibility is 1 mm and the penciloil-water separation test was carried out for oil-contaminated water in a six-stage super-hydrophobic film

Keywords： super-hydrophobic super-oleophilic composite coating mesh film separation of oil and water