The Analysis of Air Circulation on Coffee Plantation Based on the Level of Plants Roughness and Diamond Ladder Graph Cropping Pattern Using Finite Volume Method

Abstract

One of the Indonesia major export commodity is a coffee bean. The field expansion have been focused several years ago to increase the productivity, but it does not give a significant effect. One of the factors that affect the productivity is a mathematical model of crop planting pattern and a plant roughness level. The resulting mathematical model is discretized with a finite volume method to yield a linear system of equation. Ax = b and it is used a successive under relaxation (SUR) method to solve it. The simulation process is carried out by using MATLAB and FLUENT software. The result of the research shows that the level of the plant roughness and crop planting pattern affect to the air circulation around the coffee plantation. The higher the level of plant roughness the worse the air circulation, and vice versa. Finally, the use of a crop planting pattern of diamond ladder graph gives a better air circulation process in the coffee plantation.