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Title: Energy flow in passive and active 3D cochlear model

Energy flow in the cochlea is an important characteristic of the cochlear traveling wave, and many investigators, such as von Békésy and Lighthill, have discussed this phenomenon. Particularly after the discovery of the motility of the outer hair cells (OHCs), the nature of the power gain of the cochlea has been a fundamental research question. In the present work, direct three-dimensional (3D) calculations of the power on cross sections of the cochlea and on the basilar membrane are performed based on a box model of the mouse cochlea. The distributions of the fluid pressure and fluid velocity in the scala vestibuli are presented. The power output from the OHCs and the power loss due to fluid viscous damping are calculated along the length of the cochlea. This work provides a basis for theoretical calculations of the power gain of the OHCs from mechanical considerations.
Authors:
;  [1] ;  [1] ;  [2]
  1. Department of Mechanical Engineering, Stanford University, Stanford, California (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
22494509
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1703; Journal Issue: 1; Conference: 12. international workshop on the mechanics of hearing, Cape Sounio (Greece), 23-29 Jun 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BOX MODELS; DAMPING; FLUIDS; HAIR; MEMBRANES; MICE; POWER LOSSES; THREE-DIMENSIONAL CALCULATIONS; TRAVELLING WAVES; VELOCITY