Smoothed particle hydrodynamics for root growth mechanics

被引:4
作者
Mimault, Matthias [1 ]
Ptashnyk, Mariya [2 ]
Bassel, George W. [3 ]
Dupuy, Lionel X. [1 ]
机构
[1] James Hutton Inst, Dundee, Scotland
[2] Heriot Watt Univ, Edinburgh, Midlothian, Scotland
[3] Univ Birmingham, Birmingham, W Midlands, England
基金
欧洲研究理事会; 英国生物技术与生命科学研究理事会;
关键词
Anisotropic material; Cell division; DualSPHysics; Root growth model; Smoothed particle hydrodynamics; VARIABLE RESOLUTION; PLANT DEVELOPMENT; CELL-DIVISION; SPH; MODELS; BIOMECHANICS; SIMULATIONS; ACCRETION; EXPANSION; ACCURACY;
D O I
10.1016/j.enganabound.2019.03.025
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A major challenge of plant developmental biology is to understand how cells grow during the formation of an organ. To date, it has proved difficult to develop computational models of entire organs at cellular resolution and, as a result, the testing of hypotheses on the biophysics of self-organisation is currently limited. Here, we formulate a model for plant tissue growth in an Smoothed Particles Hydrodynamics (SPH) framework. The framework identifies the SPH particle with individual cells in a tissue, but the tissue growth is performed at the macroscopic level using SPH approximations. Plant tissue is represented as an anisotropic poroelastic material where turgor pressure deforms the cell walls and biosynthesis and cell division control the density of the tissue. The performance of the model is evaluated through a series of tests and benchmarks. Results demonstrate good stability and convergence of simulations as well as readiness of the technique for more complex biological problems.
引用
收藏
页码:20 / 30
页数:11
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