Hydrodynamic modeling of cochlea and numerical simulation for cochlear traveling wave with consideration of fluid-structure interaction-中国期刊网

摘要 Thecochleaisanimportantstructureinthehearingsystemofhumanity.Itsuniquestructureenablesthesensibilitytothesoundwavesofvariedfrequencies.ThewidelyacceptedmodelofthecochleaisexpressedasalongtubelongitudinallydividedbyamembranenamedtheBasilarMembrane(BM),intotwofluid-filledchannels.Basedonvariousassumptionsforthecochlearfluidandstructure,simplifiedmathematicalandmechanicalcochlearmodelsweredevelopedtohelptounderstandthemechanismofthecomplexcoupledsysteminthepastdecades.ThispaperproposesahydrodynamicnumericalcochlearmodelwithconsiderationoftheFluid-StructureInteraction(FSI).Inthismodel,thecochlearlymphisconsideredasinaNewtonianviscousfluid,andthebasilarmembraneismodeledasacompositestructure.Thetravelingwaveissimulated.Alsofocusingonthepressureinthefluidfield,theresultsarecomparedwithstudiesofPetersonandBogert,whereitwasassumedthattheslowcompressivewavesaretravelingalongtheBM.Furthermore,thetransmittingtimeofthecochleartravelingwaveisalsodiscussed.

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Hydrodynamic modeling of cochlea and numerical simulation for cochlear traveling wave with consideration of fluid-structure interaction

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Hydrodynamic modeling of cochlea and numerical simulation for cochlear traveling wave with consideration of fluid-structure interaction

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