Combustion Speed Parameters When Simulating by Ansys Fluent Program of Solid Fuel Combustion

Abstract

The existing difference in the models used to describe the burning rate of solid fuel particles, and, accordingly, the difference in the constants appearing in them, determines the relevance of the formulation of the relation between the constants known from the literature and the parameters that must be set in programs for CFD modeling of heat and power processes. This, in particular, relates to modeling the combustion of solid fuels in the well-known program ANSYS FLUENT. The paper outlines a possible approach to solving this problem. Bibl. 5, Fig. 3.

Design by Program Ansys Fluent Processes in Heating of Caldron of TPP-210а

“…Ïîñêîëüêó â ïðîãðàììå ANSYS FLUENT ìîäåëü ãîðåíèÿ ÷àñòèö [9] íåñêîëüêî îòëè÷àåòñÿ îò èñïîëüçóåìîé â îòå÷åñòâåííûõ èñòî÷íèêàõ [10], çàäàíèå êîíñòàíò ñêîðîñòè ãîðåíèÿ (äèôôóçèîííîé êîíñòàíòû Ñ 1 è ïðåäýêñïîíåíöèàëüíîãî ôàêòîðà Ñ 2 ), ñîîòâåòñòâóþùèõ çíà÷åíèÿì, ïðèâîäèìûì â îòå÷åñòâåííîé ëèòåðàòóðå êîýôôèöèåíòó ñêîðîñòè äèôôóçèè è ïðåäýêñïîíåíöèàëüíîìó ìíîaeèòåëþ k 0 , ïîòðåáîâàëî îòäåëüíîãî ðàññìîòðåíèÿ [11]. Ïðàâäà, è çíà÷åíèå k 0 òîaeå íå âïîëíå îäíîçíà÷íî: àâòîð [12] ñâÿçûâàåò åãî âåëè÷èíó ñ ýíåðãèåé àêòèâàöèè, íî, ïî äàííûì èññëåäîâàíèé ðàçíûõ àâòîðîâ, âèä òàêîé ñâÿçè ñóùåñòâåííî ðàçëè÷àåòñÿ.…”