Otto D. L. Strack

Otto D. L. Strack

Otto D. L. Strack

Professor, Department of Civil, Environmental, and Geo- Engineering


Civil Engineering Building
Room 293
500 Pillsbury Drive SE
Minneapolis, MN 55455


  • M.S., 1969, Civil Engineering, Delft University of Technology, The Netherlands
  • Ph.D., 1973, Engineering, Delft University of Technology, The Netherlands

Professional Background

  • Adjunct Professor, Institut Agronomique et Veterinaire Hassan II, Rabat, Morocco,1984-present
  • Scientific Officer, Delft University of Technology, The Netherlands, 1968-74
Research Interests

Experts@Minnesota | Google Scholar Citations

Research in groundwater mechanics is focused on regional modeling of groundwater flow and transport. Computer modeling in this area requires handling large unbounded domains, simulating the flow in the area of interest, and dealing with oddly shaped internal boundaries. A new numerical method, called the analytic element method, has been developed in an attempt to meet these criteria. The method is based on superposition of suitable analytic functions, and has been implemented in several computer programs, which have been applied successfully to numerous problems of regional flow.

The Analytic Element Method is described in detail on his website, where there is a demo version of SLAEM (Single Layer Analytic Element Model) available for download.


Strack, O.D.L., 2019, Applications of Vector Analysis and Complex Variable in Engineering. Springer, in Press

Strack, O.D.L, 2017. Analytical Groundwater Mechanics. Cambridge University Press, 2017. ISBN 978-1-107-14883-3

Strack, O.D.L., 1989. Groundwater Mechanics. Prentice Hall. (currently published by Strack Consulting, Inc.)

Book Chapter: "Water Encyclopedia," in Fundamentals of Groundwater Flow, Wiley. (in press, expected 2019-20)

Selected Publications

Strack, O. D. L. 2020. Gas explosion analysis. Geotechnical Special Publication, 2020-February(GSP 321), 57-67. doi: 10.1061/9780784482841.004

Strack O.D.L., Ausk B.K., Namazi T. 2019. Analytical solution for groundwater recharge on a hill. Advances in Water Resources 133, 103409 10.1016/j.advwatres.2019.103409

Strack O.D.L. 2018. Limitless analytic elements. Water Resources Research 54 (2), 1174-1190. doi: 10.1002/2017WR022117

Toller E.A.L., Strack O.D.L. 2018. Interface flow with vertically varying hydraulic conductivity. Water Resources Research10.1029/2019WR024927

Strack O.D.L. 2017. Vertically integrated flow in stratified aquifers. Journal of Hydrology 548, 794-800 doi: 10.1016/j.jhydrol.2017.01.039

Strack O.D.L., Stoekl L., Damm K., Houben G., Ausk B.K., deLange W.J. 2016. Reduction of saltwater intrusion by aquifer modification. Water Resources Research, doi: 10.1002/2016WR019037

Strack O.D.L. 2016. Salt water interface in a layered coastal aquifer; the only published analytic solution is in error. Water Resources Research, 52, doi: 10.1002/2015WR018127

Strack, O.D. L. and T. Namazi. 2014. A new formulation for steady multiaquifer flow; an analytic element for piecewise constant infiltration. Water Resources Research, 50(10): 7939–7956, doi: 10.1002/2014WR015479.

Strack, O.D.L. and P.A. Cundall. 1979. A discrete numerical model for granular assemblies. Geotechnique, 29(1): 47-65. *14,000+ citations.