HEC-RAS 2D Initial Conditions Time (Warm-up) and Ramp Up Fraction

[@hydro_bim]

Hi! and what about "Prior WS File Name" option to load initial conditions from previous model?

[@ricardovegas1637]

Hi Dr. Gibson, I want to know the difference between the 2D Initial Condition/WarmUp (Ramp Up hours) and the 2D Sediment WarmUp Periods (concentration, gradation & bathymetry). Do I need both warmup parameters for a 2D Sediment analysis or when I'd need to introduce those 3 sediment warmup periods? Thank you so much for your videos!! (I'm from Peru btw)

[@brianfairchild4665]

Hi Dr. Gibson! First off, thanks for all the great videos. I have been watching quite a few of them as I set up a sediment model for the first time. I do have a quick question if you see this comment. I have set up a 2D Unsteady sediment model in many different ways trying to resolve this error, further simplifying the model each time, but I continue to come across this error. I also tried setting the hydraulic warmup period as mentioned in this video. This is the error: forrtl: severe (151): allocatable array is already allocated Image PC Routine Line Source RasUnsteadySedime 00007FF7623983FD Unknown Unknown Unknown RasUnsteadySedime 00007FF7616F9F21 READ_UN_SEDIMENT2 1329 Read_UN_Sediment2D.f90 RasUnsteadySedime 00007FF761747647 READ_UN_S2D 147 Read_UN_S2D.f90 RasUnsteadySedime 00007FF7619A12CC SNETREAL2 189 Snetreal2.for RasUnsteadySedime 00007FF7618CC1DC UNETREAL 75 Unetreal.for RasUnsteadySedime 00007FF7616A83A4 UNET_START 143 Unet_start.for RasUnsteadySedime 00007FF7617F6977 MAIN__ 70 Unet.for RasUnsteadySedime 00007FF762A855BE Unknown Unknown Unknown RasUnsteadySedime 00007FF76806B979 Unknown Unknown Unknown RasUnsteadySedime 00007FF76806B89E Unknown Unknown Unknown Error with program: RasUnsteadySediment.exe Process Count = 25 Exit Code = 151 Do you have any idea what the issue is? As you can imagine, the fact that I am posting this on a KZbin video means I am pretty desperate. I have tried googling this error extensively, but with no luck. Any insight you have would be deeply appreciated.

[@brianfairchild4665]

@@stanfordgibson Thanks, Dr. Gibson! I will connect with you on LinkedIn. That would probably be good anyways, as I think we have some mutual friends at the USACE. I took a class at KU from Dr. Shelley, and have a another close friend who works there too! :)