DEFLAGRATION IN A VENTED VESSEL WITH INTERNAL OBSTACLES

Experiments on deflagration in a vented vessel with a volume of 11 m(3 ) with internal obstacles in the form. of arrays of metal rods are des cribed. Experimental and calculated curves of explosion pressure versu s time are given. The effect of array parameters (rod diameter and cel l size, the free cross-sectional area and the number of arrays, the sp acing between arrays and their arrangement) on the explosion dynamics and turbulence factor for combustion inside the vessel are determined. Quantitative data on the turbulence factor for combustion in a vessel of large volume with obstacles in, the form of a set of arrays are ob tained for the first time. In some cases, they far exceed the previous ly obtained values for the turbulence factor. It is shown that, accord ing to theoretical predictions, the maximum explosion pressure correla tes with the ratio of the turbulence factor to the discharge coefficie nt rather than, with the turbulence factor. A formula for the calculat ion of this ratio is proposed.