Blast Wave Induced Flows in Semicircular Canals
American Journal of Bioscience and Bioengineering
Volume 3, Issue 1, February 2015, Pages: 1-7
Received: Dec. 14, 2014; Accepted: Dec. 17, 2014; Published: Jan. 23, 2015
Views 3321      Downloads 282
Authors
Mohammad Movassat, Department of Mechanical & Industrial Engineering, University of Toronto, Toronto, ON, Canada, M5S-3G8
Nasser Ashgriz, Department of Mechanical & Industrial Engineering, University of Toronto, Toronto, ON, Canada, M5S-3G8
Bob Cheung, DRDC, Toronto, ON, Canada
Article Tools
Follow on us
Abstract
Dynamics of endolymph and cupula in a semicircular canal subject to high frequency oscillations imposed on the endolymph at the open section of the canal is investigated. Deformation of cupula inside the endolymph fluid is simulated numerically.A high frequency and high amplitude periodic oscillations may result in the formation of vortical motions inside the semicircular canals. The number of vortices increases with the oscillation frequency. As a result of asymmetry of the canal geometry, there is an asymmetry in the pressure variation across the cupula resulting in a net motion of cupula in a specific direction during each cycle. The motion of the cupula depends on the vibration amplitude and frequency.
Keywords
Semicircular Canal, Cupula, Endolymph, Numerical Simulations
To cite this article
Mohammad Movassat, Nasser Ashgriz, Bob Cheung, Blast Wave Induced Flows in Semicircular Canals, American Journal of Bioscience and Bioengineering. Vol. 3, No. 1, 2015, pp. 1-7. doi: 10.11648/j.bio.20150301.11
References
[1]
Steinhausen, W. (1933) Uber die beobachtungen der cupula in den bognegangsampullen des labyrnithes des libendenhetchs. Pflugers Arch., 232:500-512.
[2]
Van Egmond, A.A.J., Groen, J.J., & Jongkees, L.B.W. (1949) The mechanics of the semicircular canal. J. Physiol., 110:1-17.
[3]
Van Buskrik, W.C., Watts, R.G., & Liu, Y.K. (1976) The fluid mechanics of the semicircular canals.J. Fluid Mech., 78: 87-98.
[4]
Rabbitt, R.D., & Damiano, E.R. (1992) Ahydroelastic model of macromechanics in the endolymphatic vestibular canal. J. Fluid Mech., 238: 337-369.
[5]
Damiano, E. R., & Rabbitt, R.D. (1996) A singular perturbation model of fluid dynamics in the vestibular semicircular canal and ampulla. J. Fluid Mech., 307: 333-372.
[6]
Ifediba, M.A., Rajguru, S.M., Hullar, T.E., & Rabitt, R.D. (2007) The role of 3-canal biomechanics in angular motion transduction by the human vestibular labyrinth.AnnalasBiomedical Engineering, 35:1247-1263.
[7]
Rabitt, R.D. (1999) Directional coding of three-dimensional movements by the vestibular semicircular canals. Biol. Cybern, 80:417-431.
[8]
Kassemi, M., Deserranno, D., & Oas, J.G. (2005) Fluid-structural interactions in the inner ear. Computers and Structures, 83:181-189
[9]
Selva P., Oman, C.M., & Stone, H.A. (2009) Mechanical properties and motion of the cupula of the human semicircular canal. Journal of vestibular research: Equilibrium & Orientation 19(3-4).
[10]
Obrist, D. & Hegemann, S. (2008) Fluid–particle dynamics in canalithiasis. J. R. Soc. Interface, 5, 1215–1229.
[11]
Curthoys, I. S., & Oman, C.M. (1987) Dimensions of horizontal semicircular duct, ampulla and utricle in the human. Acta Otolaryngol, 103:254-261.
[12]
Ashgriz, N. (2011) Numerical Techniques for Simulating the Atomization Process Chapter 17 in Handbook of Atomization and Sprays, Ashgriz, N., Editor, Springer, pp: 339-35.
[13]
Golpaygan, A., & Ashgriz, N. (2008) Multiphase flow model to study channel flow dynamics of PEM fuel cell: deformation and detachment of water droplets Int. J. Comput. Fluid Dyn. 22:85-95.
[14]
Taber, K. H., Warden, D. L., Hurley, R. A. (2006) Blast-related traumatic brain injury: what is known? J. Neuropsychiatry Clin. Neurosci. 18 (2), 141-145.
[15]
Bauman, R. A., Ling, G., Tong, L., Januszkiewicz, A., Agoston, D., Delanerolle, N., Kim, Y., Ritzel, D., Bell, R., Ecklund, J., Armonda, R., Bandak, F., Parks, S. (2009) An introductory characterization of a combat casualty care relevant swine model of closed head injury resulting from exposure to explosive blast. J. Neurotrauma, 26 (6), 841-860.
[16]
Ling, G., Bandak, F., Armonda, R., Grant, G., Ecklund, J. (2009) Explosive blast neurotrauma. J. Neurotrauma, 26 (6), 815-825.
[17]
Philips, Y. Y., Mundie, T. G., Hoyt, R., Dodd, K. T. (1989) Middle ear injury in animals exposed to complex blast waves inside an armored vehicle. Annals of Otology, Rhinology and Laryngology, 98, 17-22.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186