CAJ | 학술논문

引入 XDLVO 理论(extended Derjaguin-Landau-Verwey-Overbeek theory)描述颗粒间作用力,建立了黏性泥沙絮凝的格子玻耳兹曼模型,利用该模型模拟由不等速沉降引起的黏性泥沙絮凝,分析不同黏土矿物泥沙颗粒对泥沙絮凝的影响,并探讨泥沙絮凝机理.模拟结果表明,不同黏土矿物的絮凝难易程度有所不同,伊利土最容易絮凝,其次是高岭土,蒙脱土絮凝能力最差,该絮凝沉降规律与前人的实验观测结论一致.
인입 XDLVO 이론(extended Derjaguin-Landau-Verwey-Overbeek theory)묘술과립간작용력,건립료점성니사서응적격자파이자만모형,이용해모형모의유불등속침강인기적점성니사서응,분석불동점토광물니사과립대니사서응적영향,병탐토니사서응궤리.모의결과표명,불동점토광물적서응난역정도유소불동,이리토최용역서응,기차시고령토,몽탈토서응능력최차,해서응침강규률여전인적실험관측결론일치.
XDLVO(extended Derjaguin-Landau-Verwey-Overbeek)theory was applied in lattice Boltzmann model to describe the interaction forces between particles,and the model of cohesive sediment flocculation was developed through lattice Boltzmann method. The flocculation process of cohesive sediment due to differential settling was simu-lated by using this model. The mechanism of flocculation was discussed by analyzing the effects of different clay min-erals on flocculation. The results show that illite is the easiest to form flocs,followed by kaoline,and montmorillonite is the most unlikely to form flocs. The effects of clay minerals on flocculation are consistent with previous experimental results.