Yu.I.Kalugin, N.G.Stepova Towards the numeric simulation of sludge dewatering in a filter press |
Applied hydromechanics, Vol. 17 (89) ¹ 2, (2015) |
| A modified iteration method has been developed that permits of essential decrease in calculation time. The method is tested in the course of numerical simulation of sludge dewatering in filter press. The calculation time for the proposed method (at two different step size) is compared with Runge-Kutta’s forth-order method with adaptive step size. It is found that the calculation time is 4.8 times shorter at the step size dt=0.001 (reduced from 785 to 163.4 s), and 32 times shorter at the step size dt=0.1 (reduced from 785 to 24.5 s). The discrepancy in results between two methods does not exceed 6%. |
|
KEY WORDS: numerical methods, reducing in calculation time, simulation, sludge dewatering, filter press |
| TEXT LANGUAGE: Russian |