摘要
InthepresentpaperthevariationalsolutionofvelocityprofileforanincompressiblelaminarandfullydevelopedflowinisoscelestriangularductsisderivedbyapplyingtheKantovorichmethod.Thetheoreticalandexperimentalresultsofpressurelossarealsogiven.Thevelocitydistributionmodel,additionalpressurelosscoefficientandcalculatingmethodofinletlengthintheentranceregionofisoscelestriangularductsarealsoderived,whicharesuitableforvariouskindsofvertexangles.Thecalculationsandexperimentsarealsoperformedfortwomodels:theisoscelestriangularchannelswithvertexangles2α=45.1°and2α=60°.Comparisonsaremadebetweenthetheoreticalanalysisinthispaperandthoseoftheotherauthors.Itcanbeseenthatthepresentanalyticalresultisofhigh.accuracyandwidepracticability,andagreeswellwiththeauthors’experiment.
出版日期
1993年09月19日（中国期刊网平台首次上网日期，不代表论文的发表时间）
