Sediment VolumeSediment Volumehttps://oss.deltares.nl/c/message_boards/find_thread?p_l_id=1806765&threadId=2692372021-02-28T22:59:16Z2021-02-28T22:59:16ZRE: Sediment VolumeChristopher Espositohttps://oss.deltares.nl/c/message_boards/find_message?p_l_id=1806765&messageId=2696232013-04-24T15:28:02Z2013-04-24T15:28:02ZOh, of course...Thanks Richard...That solved the problem for the cohesive fractions. My sand boundary was also a problem, but it looks like I had EqmBc in my morphology file set incorrectly. I assume that once I set that to false, my numbers will work out.<br /><br /><br />-chrisChristopher Esposito2013-04-24T15:28:02ZRE: Sediment VolumeRichard Measureshttps://oss.deltares.nl/c/message_boards/find_message?p_l_id=1806765&messageId=2692692013-04-24T00:09:57Z2013-04-24T00:09:03ZHi Christopher,<br /><br />I think the volumetric transport rate is output in terms of solid rock volume. If you do the same calculation but replace your dry bed density of 500 kg/m^3 with the density of the solid material the silt is made from (RhoSol in the *.sed input file) I think you'll get the correct answer. I tried this assuming RhoSol = 2650 kg/m^3 (the default value) and got:<br /><br />0.0667(kg/m^3)*1500(m^3/s)/2650(kg/m^3) = 0.037<br /><br />Hope that helps,<br /><br />RichardRichard Measures2013-04-24T00:09:03ZSediment VolumeChristopher Espositohttps://oss.deltares.nl/c/message_boards/find_message?p_l_id=1806765&messageId=2692362013-04-23T22:51:04Z2013-04-23T22:51:04ZI am having a problem tracking the volume of sediment that I put into my model. There are three sediment fractions in my model, but I will just talk about the silt for the moment.<br /><br />My input concentration of silt is 0.0667 kg/m^3.<br />The water discharge at my entrance is 1500 m^3/s.<br />The dry density of silt is 500 kg/m^3_bed.<br /><br />I would expect that the instantaneous transport of silt, measured at a cross section at the entrance, could be calculated as follows:<br /><br />0.0667(kg/m^3)*1500(m^3/s)/500(kg/m^3_bed)=0.2 m^3_bed/s<br /><br />But when I plot the instantaneous total transport of the silt fraction in Quickplot, I see that the number holds steady at 0.037 m^3/s. I get the same answer if I read the files in with matlab and add the suspended and the bed components of the silt fraction, or if I estimate the number from the plot from the map file.<br /><br />I would like to think of that instantaneous total transport number as the total volume(in the bed) of sediment that I have input to the model. Am I thinking about this calculation incorrectly?Christopher Esposito2013-04-23T22:51:04Z