摘要
WehavestudiedabiomimeticswimmerbasedonthemotionofbacteriasuchasEscherichiacoli(E.coli)theoreticallyandexperimentally.Theswimmerhasanellipsoidalcellbodypropelledbyahelicalfilament.Theperformanceofthisswimmerwasestimatedbymodelingthedynamicsofaswimmerinviscousfluid.WeappliedtheResistiveForceTheory(RFT)onthismodeltocalculatethelinearswimmingspeedandtheefficiencyofthemodel.Aparametricstudyonlinearvelocityandefficiencytooptimizethedesignofthisswimmerwasdemonstrated.Inordertovalidatethetheoreticalresults,abiomimeticswimmerwasfabricatedandanexperimentsetupwaspreparedtomeasuretheswimmingspeedandthrustforceinsiliconeoil.TheexperimentalresultsagreewellwiththetheoreticalvaluespredictedbyRFT.Inaddition,westudiedtheflowpatternssurroundingthefilamentwithafiniteelementsimulationwithdifferentReynoldsnumber(Re)tounderstandthemechanismofpropulsion.Thesimulationresultsprovideinformationonthenatureofflowpatternsgeneratedbyswimmingfilament.Furthermore,thethrustforcesfromthesimulationwerecomparedwiththethrustforcesfromtheory.Thesimulationresultsareingoodagreementwiththetheoreticalresults.
出版日期
2010年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
