Xudong Zheng: Research Activities and Profile Summaries

Complex Flow Modeling & Simulation Lab

Welcome to the complex flow modeling and simulation lab in the mechanical engineering department at the University of Maine.

Our research focuses on modeling complex flow phenomena using high-fidelity immersed boundary based computational method incorporating with massive parallel computing. The simulated flow field will be analyzed using modern flow analysis tool, such as POD, DMD and LCS. Current research interests including complex biomedical, physiological and biological flows with complex, moving boundaries and flow structure interaction as well as renewable energy applications.

Phonatory flow	Cardiac flow
coronary flow	Vascular flow
Biomedical Flows (Ongoing Research)

Bird Flight	Fish Swim
Micro Aerial Vehicle	Underwater Vehicle
Biomimetic and Bioinspired Flows

Wind Energy	Ocean Energy
Piezoelectric tree	Tide Energy
Energy Harversting Applications

Computed LCS of airflow inside larynx during phonation	Computed LCS of blood flow inside left ventricle
Computed LCS of flows for inset flight	Computed DMD modes of flow past airfoil
Complex Flow Analysis

Peer Reviewed Journal Papers

Zheng, X., Seo, J., Vedula, V., Abraham, T., and Mittal, R. (2012) “Computational Modeling and Analysis of Intracardiac Flows In a Simple Model of Left Ventricle”, European Journal of Mechanics-B /Fluids, Vol. 35, pp: 31-39, 2012.(PDF)

Mansi, T., Voigt, I, Gerogescu, B., Zheng, X.,Mengue EA, HackL M, Ionasec, RI, Noack T, Seeburger, T and Comaniciu, D.(2012) “An Integrated Framework for Finite-Element Modeling of Mitral Valve Biomechanics from Medical Images Application to MitralClip Intervention Planning”, Medical Image Analysis, Vol. 16, No. 7, pp 1330-1346.(PDF)

Xue, Q., Mittal, R., Zheng, X. and Bielamowicz, S. (2012) “Computational Modeling of Phonatory Dynamics in a Tubular Three-Dimensional Model of the Human Larynx,”J. Acoustical Society of America, Vol. 132, No 3, pp. 1602-1613.(PDF)

Mittal, R., Zheng, X., Bhardwaj, R., Seo, J., Xue, Q., and Bielamowicz, S. (2011) “Towards A Simulation-Based Tool for the Treatment of Vocal Fold Paralysis,” Frontiers in Computational Physiology and Medicine, Vol. 2, No. 19.(PDF)

Zheng, X., Mittal, R., Xue, Q. and Bielamowicz, S. (2011) “Direct-Numerical Simulation of the Glottal Jet and Vocal-Fold Dynamics in a Three-Dimensional Laryngeal Model,” J. Acoustical Society of America, Vol. 130, No. 1, pp.404-415.(PDF)

Xue, Q., Zheng, X., Mittal, R., and Bielamowicz, S. (2011) “Sensitivity of Vocal-Fold Vibratory Modes to their Three-Layer Structure: Implication for Simulation Based Phonosurgical Planning,” J. Acoustical Society of America, Vol. 130, No. 2, pp.965-976.(PDF)

Zheng, X., Mittal, R. and Bielamowicz, S. (2011) “A Computational Study of Asymmetric Glottal Jet Deflection During Phonation,” J. Acoustical Society of America, Vol. 129, No. 4, pp.2133-2143.(PDF)

Zheng, X., Xue, Q., Mittal, R. and Bielamowicz, S. (2010) “A Coupled Sharp-Interface Immersed-Boundary-Finite-Element Method for Flow-Structure Interaction with Application to Human Phonation,” J. Biomechanical Engineering, Vol. 132, No. 11, pp. 111003-1-12.(PDF)

Xue, Q., Mittal, R., Zheng, X. and Bielamowicz, S. (2010) “A Computational Study of the Effect of Vocal-fold Asymmetry on Phonation,” J. Acoustical Society of America, Vol. 128, No. 2, pp. 818-827.

Zheng, X., Bielamowicz, S., Luo, H., and Mittal, R. (2009) “Computational Study of the Effect of False Vocal Folds on Glottal Flow and Vocal Fold Vibration During Phonation,” Annals of Biomedical Engineering, Vol. 37, No. 3, pp.625-642.(PDF)

Luo, H., Mittal, R., Zheng, X., Bielamowicz, S., Walsh, R., and Hahn, J. (2008) “An Immersed-Boundary Method for Flow-Structure Interaction in Biological Systems with Application to Phonation,” J. Computational Physics, Vol. 27, No. 22, pp. 9303-9332.(PDF)