{"title":"RHEOLOGICAL FEATURES OF LIQUID IN MICROCRACKED CHANNELS WITH THE “MICROCRACK-LIQUID” EFFECT DISPLAYED","authors":"Maleyka Mammadova, Elshan Aliev Maleyka Mammadova, Elshan Aliev","doi":"10.36962/etm19012024-154","DOIUrl":null,"url":null,"abstract":"Based on experimental and theoretical studies in plane-radial and plane-parallel microcracks, a previously unknown pattern called “microcrack-liquid” effect was established for the first time, that when viscous liquids move in a microcrack at h<hcr, anomalous properties appear, and when anomalous liquids move, rheological parameters increase, at h>hcr these effects disappear.\nIt was revealed that the reason for the manifestation of anomalous properties of Newtonian liquids and the enhancement of the rheological properties of non-Newtonian systems when they move in microcapillary cracks is the new microcrack effect of the “microcrack-liquid” system.\nThe established critical values of crack opening for the studied viscous oils are 160 μm at a temperature of 303 K.\nKeywords: microcrack opening, non-Newtonian fluids, ultimate shear stress, structural viscosity, microcrack-liquid effect.","PeriodicalId":246138,"journal":{"name":"ETM - Equipment, Technologies, Materials","volume":"14 9","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ETM - Equipment, Technologies, Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.36962/etm19012024-154","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Based on experimental and theoretical studies in plane-radial and plane-parallel microcracks, a previously unknown pattern called “microcrack-liquid” effect was established for the first time, that when viscous liquids move in a microcrack at hhcr these effects disappear.
It was revealed that the reason for the manifestation of anomalous properties of Newtonian liquids and the enhancement of the rheological properties of non-Newtonian systems when they move in microcapillary cracks is the new microcrack effect of the “microcrack-liquid” system.
The established critical values of crack opening for the studied viscous oils are 160 μm at a temperature of 303 K.
Keywords: microcrack opening, non-Newtonian fluids, ultimate shear stress, structural viscosity, microcrack-liquid effect.
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