In the article the mathematical model of the unset turbulent diffusion of hanging matter up is offered in a watercourse, got at the decision of differential equalization the method of eventual differences. Recommendations over for implementation of engineering’s calculations and example of the use of the offered model are brought at damping soils.
It is considered the agro-climatic conditions changing of grape growing in the Northern Black Sea. The estimation of wine grapes vegetative phase’s dates offset in the implementation of climate scenarios was done. Based on a model developed by the authors the yield estimated due to potential climate change.
This state presented the results of grapes productivity calculations of Rubin Tayirovskyy and Zagrey varieties. Three scenarios of agrometeorological conditions were considered. The calculations were performed using the dynamic model of grapes productivity.
In the article the results of search for optimum parameters for the mathematical models of unsteady turbulent diffusion of suspended matter in water environment are given. The optimum is found at the most acceptable from a practical point of view error of the final result and the number of calculations. The general picture of the time dependence for fractions of suspended matter concentrations in the upper layer after dumping was received similar to field observations.
В статье предлагается методика распространения тяжелой примеси в воздушном потоке, полученная при решении дифференциального уравнения турбулентной диффузии методом конечных разностей. Методика позволяет исследовать распространение примесей от различных приземных источников. Приведены сопоставительные расчеты с ОНД-86 на примере некоторых источников загрязнения (реклаймеры) на современных перегрузочных комплексах навалочных и насыпных грузов, даны рекомендации.
In the article the mathematical model of permanent turbulent diffusion of hanging matter up comfortable for implementation of calculations on the personal computers in the tabular editor of Excel is offered. A model is developed at the flat (for vertical lines and horizontal lines) and spatial raising of task. Recommendations for implementation of engineering calculations, and also formulas, are resulted for verification of rightness of these calculations.