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System approaches to biological threat
assessment and mitigation Development and study of models for the conditions
of coexistence between groups (or nations) Modeling of multiphase flows in
industrial applications Modeling of hydrogen combustion Principal investigator on a multi-laboratory project to develop a hydrogen-fueled engine for a stationary or vehicle power-plant with zero emissions and high efficiency. Non-local theories in continuum mechanics Studies on the reasonableness of continuum theories that use high-order spatial operators. Stochastic particle treatments of multiphase injection The modeling of liquid sprays using Lagrangian particles in Arbitrary Lagrangian-Eulerian (ALE) codes. Modeling of high-power-density diesel engines and ultrahigh pressure fuel injection Principal Investigator on multi-laboratory project to develop an opposed-piston diesel engine. Inertially-confined fusion. One of three designers in the development of a novel concept for inertially confined fusion. Interface reconstruction in CAVEAT, an ALE code Co-developed and implemented the first interface reconstruction of mixed cells in a nonorthogonal mesh. Modeling of low speed viscoelastic and Newtonian flows Developed an original numerical method for solving complex viscoelastic flow problems; included the first free-Lagrangian technique for incompressible fluid flow; also included artificial intelligence techniques in solution method. Development of code for cavity radiation and radiation to outer surfaces Extended an existing fluid-heat-stress finite element code to include a generalized radiation treatment and nonlinear and nonisotropic material properties. Solving sets of highly nonlinear algebraic equations Developed numerical convergence techniques for highly nonlinear algebraic equations that increase radius and speed of convergence, included first known technique that employed self-regulation (A.I. techniques) to optimize convergence properties. Non-equilibrium statistical mechanics in polymeric systems Developed the first nonlinear molecular model to describe the change in non-Newtonian viscoelastic behavior from dilute to semidilute polymer solutions. Co-developed the first nonlinear chain model for describing nonlinear viscoelasticity. |
Publications | Talks | Interests:
Past & Present | Symbiotic Intelligence
Project
Contact | Science of Diversity | Home | Links | Diversity Documents New Topics: Epidemiological Modeling Using Agent-Based Models | Biological and Chemical Threat Reduction Activities Community, Coexistence and Pre-conflict Minimization Projects | The CISS (Coexistence in Suggestive Simulations) Project ©2003 Norman L. Johnson Disclaimer & Privacy Policy Webmaster: Blue Mountain |