Difference between revisions of "Chemotaxis"

Revision as of 18:23, 15 December 2016

This tutorial will guide you through the steps of adding a chemotactic force to the cells in your simulation. Requirements for chemotaxis include a population of agents, and a chemical field of a chemoattractant. The agents will move along the chemical gradient toward the chemoattractant.

In this example, a simple method is used to calculate the chemotactic force ${\displaystyle \triangle F}$ on a particle ${\displaystyle p}$ which responds to a chemoattractant ${\displaystyle C}$, as follows:

1. Generate a random unit vector ${\displaystyle {\vec {c}}}$, as a potential chemotactic force acting on ${\displaystyle p}$.
2. Along vector ${\displaystyle {\vec {c}}}$, sample the chemoattractant in the chemical field, both ahead and behind particle vector ${\displaystyle p}$, as vector ${\displaystyle C^{+}}$ and vector ${\displaystyle C^{-}}$.