TY - EJOU AU - Hogea, Cosmina S. AU - Murray, Bruce T. AU - Sethian, James A. TI - Implementation of the level set method for continuum mechanics based tumor growth models T2 - Fluid Dynamics \& Materials Processing PY - 2005 VL - 1 IS - 2 SN - 1555-2578 AB - A computational framework for simulating growth and transport in biological materials based on continuum models is proposed. The advantages of the finite difference methodology employed are generality and relative simplicity of implementation. The Cartesian mesh/level set method developed here provides a computational tool for the investigation of a host of transport-based tissue/tumor growth models, that are posed as free or moving boundary problems and may exhibit complicated boundary evolution including topological changes. The methodology is tested here on a widely studied "incompressible flow" type tumor growth model with a numerical implementation in two dimensions; comparisons with results obtained from a linear analysis of the model and with other recently published numerical solutions provide a quantitative assessment of the numerical solution methodology. The implementation has been structured such that extension to three-dimensional simulations is straightforward from an algorithmic perspective. KW - Tumor Growth Modeling KW - Level Set Methods KW - Finite Differences KW - WENO Schemes DO - 10.3970/fdmp.2005.001.109