DPM particles

NiBa · January 27, 2015, 10:35

i have a boiler and i want to simulate combustion. i choose non premixed model and i define the composition of my fuel. i calculate the pdf. also i activate the discrete phase model and i define an injection of carbon. i define the calculation of dpm every 10 iterations. i notice that when calculate dpm all the numbers are zero. tracked, escaped, incompleted, aborted trapped. does that means that the injection doesn't take place?

HyperNova · January 30, 2015, 05:55

hi , if you are simulating the DPM ''Unsteady'' you should set the starting time and ending time for the injection.you can find them in injection parameters.

NiBa · January 30, 2015, 06:47

i have steady particle. should i try with unsteady?

HyperNova · February 1, 2015, 02:12

Yes , why not! try unsteady and set time for start and ending of injection,

another thing else,reduce number of dpm iteration

January 27, 2015, 10:35	DPM particles	#1
NiBa Member Nikolaos Babilas Join Date: Nov 2014 Posts: 37 Rep Power: 11	i have a boiler and i want to simulate combustion. i choose non premixed model and i define the composition of my fuel. i calculate the pdf. also i activate the discrete phase model and i define an injection of carbon. i define the calculation of dpm every 10 iterations. i notice that when calculate dpm all the numbers are zero. tracked, escaped, incompleted, aborted trapped. does that means that the injection doesn't take place?

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January 30, 2015, 05:55		#2
HyperNova Senior Member B_Kia Join Date: May 2014 Location: Ir Posts: 123 Rep Power: 11	hi , if you are simulating the DPM ''Unsteady'' you should set the starting time and ending time for the injection.you can find them in injection parameters.

January 30, 2015, 06:47		#3
NiBa Member Nikolaos Babilas Join Date: Nov 2014 Posts: 37 Rep Power: 11	i have steady particle. should i try with unsteady?

February 1, 2015, 02:12		#4
HyperNova Senior Member B_Kia Join Date: May 2014 Location: Ir Posts: 123 Rep Power: 11	Yes , why not! try unsteady and set time for start and ending of injection, another thing else,reduce number of dpm iteration