【作者】 王洪礼； 葛根； 许佳；

【Author】 WANG Hong-li GE Gen XU Jia (School of Mechanical Engineering,Tianjin University,Tianjin 300072,China)

【机构】 天津大学机械工程学院；

【摘要】 本文对赤潮藻类被植食性浮游动物摄食的模型进行了非线性分析,得出了该确定性方程的稳定性条件,并且用数值模拟验证了理论分析。为更好地从实际出发,提出了受随机干扰的赤潮藻类生长模型。并用高斯白噪声来近似模拟了藻类稳态受到的环境干扰,得出了随机稳定条件,还进行了数值模拟,结果证明了理论分析。更多还原

【Abstract】 Nonlinear analysis was done to a phytoplankton Predator-prey model and the conditions of the stability were gotten.Also,the numerical simulation results supported the theoretical analysis well.To fit the real conditions better,a gauss white noise was used to simulate the stochastic perturbations to the stable state and numerical simulation was done.The results supported the analysis.更多还原