
Dr.
Katrin Rohlf B.Math, M.Math, PhD., Waterloo 
Associate Professor,
Department of Mathematics,
Ryerson University


Research

My research interests lie in the general area of biomathematics. In
particular, I am currently developing particlebased numerical methods
that are capable of incorporating complex particle interactions (such as
red blood cell interaction) so as to properly simulate blood flow in
biologically meaningful geometries.
The numerical method is also being
used for simulations of flow in chemical reactors, as well as for
traditional fluid flow applications including Drag and Lift Coefficient
calculations for shear flow past objects.
In general, additional research areas are: Biomathematics, nonNewtonian fluid flow, reactiondiffusion equations, modeling and simulations; applications to blood flow, cardiac arrhythmias, chemically reacting media, brain biomechanics and industrial fluid flows.


List of Selected Publications


S. Rabba and K. Rohlf. 2015. Pressure curves for compressible flows with slip through asymmetric local
constrictions. Journal of Mathematical Biology. Submitted.

L. Regmi and K. Rohlf. 2015. Weakly compressible flow through a cylinder with densitydependent viscosity and
Navierslip at the wall. European Journal of Mechanics B/Fluids. Accepted subject to revisions. Revisions in
progress.

T. Akhter and K. Rohlf. 2014. Quantifying compressibility and slip in multiparticle collision (MPC) flow through a local constriction.
Entropy, 16: 418442.

S. Bedkihal, J.C. Kumaradas, and K. Rohlf. 2013. Steady flow through a constricted cylinder by multiparticle collision dynamics.
Biomechanics and Modeling in Mechanobiology, 12: 929939.

T. Akhter, and K. Rohlf. 2013. Weakly compressible flow with slip through a local constriction. Proceedings of the 24th Canadian Congress
of Applied Mechanics (CANCAM):

P. Paudel, and K. Rohlf. 2011. Flow with slip through an aneurysm using particlebased methods. Proceedings of the 23rd Canadian Congress
of Applied Mechanics (CANCAM): 10151019.
 Bedkihal, S., Rohlf K., and J.C. Kumaradas. 2010. Steady flows through axisymmetric stenosis by
multiparticle collision dynamics. CAP Congress 2010 Proceedings: 28.
 Plaza, M., Ngwenyama, O.K., and K. Rohlf. 2010. A comparative analysis of learning curves: Implications
for
new technology implementation management, European Journal of Operational Research, 200: 518528.
 K. Rohlf. 2009. Particlebased approach to numerical simulation of stenotic flows. CANCAM 2009
Conference Proceedings: 239240.
 Rohlf, K. 2009. Stochastic phasespace description for reactions that change particle
numbers. Journal of Mathematical Chemistry, 45: 141160.
 Rohlf, K., Fraser, S., and R. Kapral. 2008. Reactive Multiparticle Collision Dynamics. Computer Physics Communications 179: 132139.
 Plaza, M., and K. Rohlf. 2008. Learning and Performance in ERP Implementation Projects: A Learning Curve
Model for Analyzing and Managing Consulting Costs. International Journal of Production Economics, 115:
7285.
 Habekost, M. and K. Rohlf. 2008. The evaluation of colour difference equations and optimization of DE2000.
Journal of Graphic Technology 4: 149164.
 Jasudavisius, A. and K. Rohlf. 2007. Numerical study of flow past a
rotating circular cylinder. CANCAM (21st Canadian
Congress of Applied Mechanics) 2007 Conference Proceedings: 290291.
 Rohlf, K., Glass, L., and R. Kapral. 2006. Spiral Wave Dynamics in Excitable Media with Spherical Geometries. Chaos 16: 037115.
 Drapaca, C.S., Tenti, G., Rohlf, K., and S. Sivaloganathan. 2006. A
Quasilinear Viscoelastic Constitutive Equation for the Brain:
Application to Hydrocephalus. Journal of Elasticity 85(1): 6583.
 Rohlf, K. and S.J.D. D'Alessio. 2005. Uniform Shear Flow Past a Circular Cylinder. Acta Mechanica 178:199222.
 Rohlf, K. and G. Tenti. 2001. The role of the Womersley number in pulsatile blood flow: A theoretical study of the Casson model. J. Biomechan. 34:141148.
 Liu, X. and K. Rohlf. 1998. Impulsive control of a LotkaVolterra system. IMA J. Math. Control & Information 15:269284.


Membership of the School of Graduate Studies

Member of the School of Graduate Studies at Ryerson University since November 2005.
Adjunct Member of the Computer Science Department, the Physics Department and the Chemical Engineering Department at Ryerson University.


Current and Past Graduate Students and Postdoctoral Fellows

Dr. Robert Strehl (Postdoctoral Fellow in Applied Mathematics, cosupervised
by Dr. S. Ilie, July 2014July
2015)
Matthew DeClerico (MSc candidate in Applied Mathematics, 2013)
Bhai Kumar Adhikari (MSc in Applied Mathematics, 20122014; cosupervised with Dr.
J.P. Pascal)
Pradeep Kunwar (MSc in Applied Mathematics, 20122014; currently MSc student,
University of Toronto))
Salahaldeen Rabba (MSc in Applied Mathematics, 20122014; currently Ph.D.
candidate, Ryerson University)
Laxmi Regmi (MSc in Applied Mathematics, 20112013)
Tahmina Akhter (MSc in Applied Mathematics, 20102012; currently PhD candidate at University of Waterloo)
Salil Bedkihal (MSc in Biomedical Physics, 20082010; cosupervised by Dr. J.C.
Kumaradas; currently Postdoctoral Fellow, McGill University)


Funding

NSERC Discovery Grant (20082015)
NSERC Research Tools and Instruments Grant (coapplicant, 2007)
University Starter Grant (2005)


CV




