Hello Dr. Gibson, When I try to run sediment transport 2D simulation using the 6.2 version (or even older version) I alawys get the following error and the simulation never starts, if i turn off sediments, flow computation works normally: Transport Function: Meyer Peter Muller Sorting Method: Active Layer Fall Velocity Method: Soulsby Global deposition/erosion methods: Soulsby HDF_ERROR trying to use HDF output file Subroutine HDF_S2D_WRITE_LAT HDF_ERROR trying to close HDF output file: HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0: #000: ..\..\src\H5S.c line 405 in H5Sclose(): not a dataspace major: Invalid arguments to routine minor: Inappropriate type How can I solve this issue? I tried running on a different Pc, I got this error even on flow simulation without sediments. one time I tried redoing the whole modeling process and sediments works fine but now even If I redo it, it gives the same error and it doesnt work. Thank you in advance.
You can put a structure with gates in RAS which will affect the water levels and shear stress in different 2D areas affected by the barrage, but sediment transport through a structure like that is a 3D process and RAS does not calculate that at this point
Hi Davide, We have footage of a 2D sediment workshop that we did here at HEC a couple months ago...including talks on those parameters. I'll be posting those soon.
Hello again Dr Gibson, Thanks again for all of these amazing videos. I was wondering if you have ever encountered increased fragmented innundation errors when performing bed change analysis using the sediment models ? I am finding my areas of high erosion also are subject to incredibly high fragmentation in RAS meaning my outputs are missing flow data over bed loss areas.
hello Dr Gibson, thank you for the video. I have tried to follow it and other 2D tutorial videos to work on a model but i'm getting an error and I can't seem to find out what it means. "ERROR: CHECKSedCoeffData: Precip or Excess have not been linked correctly", any idea what i might have to give a look to handle this ?
It looks like you have added precipitation data. I haven't done that much, so I'm not familiar with that error. Try redoing your boundary conditions without precipitation
@@stanfordgibson thank you for your reply, I didn't add any precipitation, I've gone through it a number of times but can't find any sign I might have added something related to precipitation unknowingly
Not in version 6.1. We have added the capability and are getting good results with lab data. Not sure if we're releasing it in 6.2. Look at the release notes when it comes out.
Hello, If you download the latest beta version from the HEC website and choose to install the example data sets there is at least one example, 2D sediment data set, and we're planning to add more.
Hello Dr Gibson, thank you for the video. I have tried to follow it and other 2D tutorial videos to work on a model but i'm getting an error and I can't seem to find out what it means. "forrtl: severe (157): Program Exception - access violation Image PC Routine Line Source RasUnsteadySedime 00007FF60CAEC4BA Unknown Unknown Unknown RasUnsteadySedime 00007FF60C0287C9 READ_UN_S2D_BC 102 Read_UN_S2D_BC.f90" any idea what i might have to give a look to handle this ?
I am also interested in the answer! Get the same error. I have also tried to follow videos and 2d sediment tutorial. I have a basic uniform bed gradation and I even activate Capacity only method to get rid of any potential issue regarding sediment equation calculations
@@oliviergauvintremblay313 That error can be a number of things...but in any case its a bug because RAS should fail more gracefully. If you reach out to me on Linkedin I can look at it.
Hi Dr Gibson. I've been attempting some 2d sediment modelling on an alpine reach and am finding I'm getting error code 157 consistently despise trying the fixes seen on hec ras forums? Is there some stability based setting I am missing?
Yeah, the team changed that. Right click on layers, select Create New Layer, choose the type of layer, and then in the editor, there is a create empty button.
And the Wu transform method cannot be found in the Transform as well. I am expecting the latest users' manual but the websites are still under maintenance. Any clue when will the website maintenance be done?
@@moonlighttreasure1099 Unfortunately no...every Friday we hear that they should be up by Monday...and aren't. Should be soon, but I've been saying that for a while.
@@moonlighttreasure1099 It sounds to me like you have cross sections in your model. RAS can either do 1D sediment or 2D sediment, it can't do both. So if you have cross sections, it turns off the 2D transport stuff...including Wu which is 2D only
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
It is a really awesome and helpful video. Thank you!
Thanks for the introduction to the new features. Merry Christmas!
Thank you Dr.Gibson
nice explanation. thanks for you efforts.
Thank you for the introduction...👍
great introduction video thank you
Great video, thanks!
Hello Dr. Gibson,
When I try to run sediment transport 2D simulation using the 6.2 version (or even older version) I alawys get the following error and the simulation never starts, if i turn off sediments, flow computation works normally:
Transport Function: Meyer Peter Muller
Sorting Method: Active Layer
Fall Velocity Method: Soulsby
Global deposition/erosion methods: Soulsby
HDF_ERROR trying to use HDF output file
Subroutine HDF_S2D_WRITE_LAT
HDF_ERROR trying to close HDF output file:
HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0:
#000: ..\..\src\H5S.c line 405 in H5Sclose(): not a dataspace
major: Invalid arguments to routine
minor: Inappropriate type
How can I solve this issue? I tried running on a different Pc, I got this error even on flow simulation without sediments.
one time I tried redoing the whole modeling process and sediments works fine but now even If I redo it, it gives the same error and it doesnt work.
Thank you in advance.
Very useful!
Hello Dr. Gibson, thanks for all the amazing videos. Can I be modeling the effect of barrage gates on sediment transport(gates numbers: 56 gate ) ?
You can put a structure with gates in RAS which will affect the water levels and shear stress in different 2D areas affected by the barrage, but sediment transport through a structure like that is a 3D process and RAS does not calculate that at this point
thanks Dr, I mean affecting gates operation on sediment deposition for downstream of the barrage ?
@@firdosnsaiefJasim Yeah, if I understand, that should be pretty straight forward (for a sediment model).
Hi Stan, are there video tutorials that runs through the parameters you tweaked and what they mean? Thank you
Hi Davide, We have footage of a 2D sediment workshop that we did here at HEC a couple months ago...including talks on those parameters. I'll be posting those soon.
@@stanfordgibson Outstanding! Looking forward to those!
Hi! The next error pops up at the beguinning of the simulation "ERROR: Problem with SedBathy". Do you know what could be te problem?
Hi Dr Gibson..I want to apply the HEC RAS sediment transport model in a meandering channel. Can you upload some tutorials in that regard?
Hello again Dr Gibson, Thanks again for all of these amazing videos. I was wondering if you have ever encountered increased fragmented innundation errors when performing bed change analysis using the sediment models ? I am finding my areas of high erosion also are subject to incredibly high fragmentation in RAS meaning my outputs are missing flow data over bed loss areas.
I'm not sure I totally understand. If you reach out to me through LinkedIn or Researchgate I can take a look at it.
@@stanfordgibson Sure, I've added you on LinkedIn, hopefully with some screenshots I can explain myself a little better
hello Dr Gibson, thank you for the video. I have tried to follow it and other 2D tutorial videos to work on a model but i'm getting an error and I can't seem to find out what it means. "ERROR: CHECKSedCoeffData: Precip or Excess have not been linked correctly", any idea what i might have to give a look to handle this ?
It looks like you have added precipitation data. I haven't done that much, so I'm not familiar with that error. Try redoing your boundary conditions without precipitation
@@stanfordgibson thank you for your reply, I didn't add any precipitation, I've gone through it a number of times but can't find any sign I might have added something related to precipitation unknowingly
Does RAS have the capability to do erosion and sediment transport in the same model as non-Newtonian flow?
Not in version 6.1. We have added the capability and are getting good results with lab data. Not sure if we're releasing it in 6.2. Look at the release notes when it comes out.
Thanks Dr. Gibson! I have 1 Question. How can I get this example? I can't find this example in HecData example folder.
Hello, If you download the latest beta version from the HEC website and choose to install the example data sets there is at least one example, 2D sediment data set, and we're planning to add more.
Hello Dr Gibson, thank you for the video. I have tried to follow it and other 2D tutorial videos to work on a model but i'm getting an error and I can't seem to find out what it means. "forrtl: severe (157): Program Exception - access violation
Image PC Routine Line Source
RasUnsteadySedime 00007FF60CAEC4BA Unknown Unknown Unknown
RasUnsteadySedime 00007FF60C0287C9 READ_UN_S2D_BC 102 Read_UN_S2D_BC.f90" any idea what i might have to give a look to handle this ?
If you reach out to me on LinkedIn I'll look at it.
I am also interested in the answer! Get the same error. I have also tried to follow videos and 2d sediment tutorial. I have a basic uniform bed gradation and I even activate Capacity only method to get rid of any potential issue regarding sediment equation calculations
@@oliviergauvintremblay313 That error can be a number of things...but in any case its a bug because RAS should fail more gracefully. If you reach out to me on Linkedin I can look at it.
Hi,
do you solve your problem?
I have the same mensage and y can´t solve it
Hi Dr Gibson. I've been attempting some 2d sediment modelling on an alpine reach and am finding I'm getting error code 157 consistently despise trying the fixes seen on hec ras forums? Is there some stability based setting I am missing?
@@stanfordgibson Thank you Dr Gibson. I have emailed you over some more context and the dataset I am using, hope to hear from you soon :)
hi, did you find how to fix this issue? thank you 😄
tHERE'S NO OPTION OF CREATE AN EMPTY RAS LAYER....
Yeah, the team changed that. Right click on layers, select Create New Layer, choose the type of layer, and then in the editor, there is a create empty button.
Thanks. Btw I got to the point when I need to change the 2D options but it shows grey and cannot be selected. Any recommendations? @@stanfordgibson
And the Wu transform method cannot be found in the Transform as well. I am expecting the latest users' manual but the websites are still under maintenance. Any clue when will the website maintenance be done?
@@moonlighttreasure1099 Unfortunately no...every Friday we hear that they should be up by Monday...and aren't. Should be soon, but I've been saying that for a while.
@@moonlighttreasure1099 It sounds to me like you have cross sections in your model. RAS can either do 1D sediment or 2D sediment, it can't do both. So if you have cross sections, it turns off the 2D transport stuff...including Wu which is 2D only