Volume 13 Part 1 Article 46: A mathematical model of the environment in mushroom tunnels

Volume 13 Part 1 Article 46
Year 1991
Title: A mathematical model of the environment in mushroom tunnels
Author: J. Grant

Abstract:

The development of a mathematical model of the environment in tunnels, used for bag production of mushrooms, is described. The multi-cellular model is based on partial differential equations for the physical system and describes conditions throughout the tunnel. Selection of the parameters and their inclusion in the model is discussed. A description of the turbulent air flow in the tunnel was taken as the first stage of the project and, because thermal buoyancy is an important aspect of the flow, the equations for temperature response were included at this stage A two-dimensional approximation was set up to investigate the general behaviour of air flow and buoyancy effects were predicted. This approach, which used a cross-section of the tunnel, was found to be limited because continuity of flow is maintained in the third dimension, along the tunnel The three-dimensional case was investigated.

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