One of the best tutorial for HEC RAS on youtube. Much appreciation for your work.
@umeraltaf2567 Жыл бұрын
from where did he get manning values?
@ankitpaul24284 жыл бұрын
Really useful, and very well explained, I like the pace of communication particularly, it does not make the video boring and maintains interest. Thanks again :)
@sanatanart5444 жыл бұрын
I am going to start my project using Hec Ras . Have you completed your project? What was your project topic?? Plzz reply
@Shayner383 жыл бұрын
Is there a solution to the Unsteady flow Flow hydro graph not creating the time intervals correctly thus causing the data to plot wrong? For example my intervals are set to 10 minutes but it counts 00:10, 00:20 , 1:30, 1:40, 1:50, 1:00, 1:10.....
@TheRASSolution2 жыл бұрын
Never heard of this Shayne- I would delete the unsteady flow file and start fresh. If it persists let me know. -Ben
@kellenkromm69472 жыл бұрын
Same issue here in 6.0.0
@carolyang33292 жыл бұрын
Great tutorial. Also, if anyone else is having this issue, at first my Edit Manning's n or k values window was only allowing me to edit n#1. I clicked on the "Reduce to L Ch R" button above the table and was able to edit n#2 and n#3. Maybe this is something that changed as the default between versions of HEC-RAS.
@pratik123pratik123 Жыл бұрын
Really helpful
@mahdisadri831410 ай бұрын
thank you , was really helpful
@bell_khalo4 ай бұрын
Thank you for this
@haridhungel86575 жыл бұрын
Hi, Chris Goodell recommend me to watch your videos and it’s great. Thank you so much for making such a great informative video and keep making these kinds of detailed video for new learners.
@philgryz91725 жыл бұрын
Hair did you go to YSU.? I did as well.
@jasonwilk44733 жыл бұрын
Hi there, thanks so much for the video! You mention around 5:45 that you can define horizontally varying roughness from a .shp file. I cannot figure out how to apply manning's n data in this format to 1D cross sections. After researching it seems like land cover / manning's shapefiles can only be used for 2D modeling. Is this true? Thanks so much for the help!
@TheRASSolution3 жыл бұрын
You are correct. But in the new beta release of version 6.0 you can now apply n values to cross sections from shape files. I haven’t tried it yet though.
@jasonwilk44733 жыл бұрын
@@TheRASSolution Thanks so much for the feedback. I have downloaded the beta and am trying with no success yet, but I'll report back if I am able to figure it out. Do you know if 6.0 will allow users to apply polygon shapefiles of obstructions to cross sections as well? Thank you so much for the help and all of the content. Subscribed!
@TheRASSolution3 жыл бұрын
@@jasonwilk4473 about obstructions, I don’t think so.
@JALAJDARPAN3 жыл бұрын
@@TheRASSolution Sir these are already there in Tuflow.unfortunately that's comercial software
@ZKYBill3 жыл бұрын
@@jasonwilk4473 Hi Jason, I have ran into the same problem. I am using 6.0. After creating the geometry file, section that suppose to display manning's n values are grey-ed out. The manning's n and k value table also only shows n#1. an additional n value column was found in the cross section editor. Please let me know if you have found any solution. Thanks.
@khylayly75796 жыл бұрын
This is exactly what I was looking for. Alway Enjoy ur video and webinar, can't wait for the 2nd part of the bridge and culvert webinar.
@chrisstewart11685 жыл бұрын
That was really good. So much info compressed into a short course. Thank you.
@carlosdeandres4998 Жыл бұрын
Incredibly helpful, thanks
@nmsabuj97015 жыл бұрын
Excellent tutorial for the GIS modelers. Thanks for sharing...
@eosmusic98725 жыл бұрын
much appreciated, this is making it much easier to jump back into using this
@TheBureki4 жыл бұрын
Thank you for helping me complete my thesis!
@galinalabaznova42272 жыл бұрын
Great presentation! Much appreciation for your work!
@jheadley635 Жыл бұрын
For the Normal Depth slope calculation, should I go from the river beginning to end in a straight line? Or should I follow the meandering of the river?
@gracegarcia30514 жыл бұрын
Thank you. I like your tutorials very much.
@michellekan17533 жыл бұрын
I can’t find the tab for google satellite when I wants to change the google transparency, can you tell me where did drag it from?
@rutujabhalerao1213Ай бұрын
hello sir. Why you have perform rating curve on road?
@hikikomorihachiman74917 ай бұрын
Awesome as always
@sindbad2032 жыл бұрын
Thank you Krey!
@j-sylmatiling47648 ай бұрын
Hi, where do I get the roughness area for that table you've inserted.
@kirstencowley2651 Жыл бұрын
Hi I'm working in the later version of Hec-Ras and I don't have a drop down menu from my new geometry box. It just say 18 empty layers. can someone help with this?
@_parikshit_kumar_3 жыл бұрын
Error loading image from from file in map layers of RAS Mapper. A red dot on Google satellite. How to remove this error?
@xiangyuan19953 жыл бұрын
please help! does anybody know why on the left hand side of my RAS Mapper, "Rivers", "Cross Sections", "Storage Areas", "2D Flow Areas", "Pump Stations", "BC Lines", "Manning's n", "infiltration", "Percent Impervious" are not able to be edited? the colors of those options are all grey, and when I tried to make edition of "Rivers", RAS Mapper just stopped working, urgent, please let me know if you know why, please!
@umeraltaf2567 Жыл бұрын
Please suggest me from where to get manning values?
@fibortan94813 жыл бұрын
Very clear tutorials! Thank you sir.
@aftabahmed4352 жыл бұрын
Great videos and very helpful. I have a question here. How did you put Mannings n value in n# 02 and N3# 03, those are uneditable here with me. And, n# 01 value is -9999. Kindly guide... thanks in advance
@Raj-ym7vd2 жыл бұрын
did you get the solution because i faced same problem
@nuncapierdaslafe5 жыл бұрын
Its very usual finding empty spaces between two water bodies (as two wave fronts or separation of flow) in HEC RAS 2D, but in fact this doesnt happen in the reality. What would you consider as the mistake or how to solve it?
@apeesharma2373 Жыл бұрын
Nice tutorial. But I am confused that how could we measure slope value for normal depth in downstream???? how you put 0.001??
@jonsina-hi8fx Жыл бұрын
Hi, I wanna say U - thank U very much for your presentation. But I've some problems. Can U help me? When I'm gonna "Compute" my results - I've these ---- "HDF_ERROR trying to close HDF output file: HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0: #000: ..\..\src\H5T.c line 1761 in H5Tclose(): not a datatype major: Invalid arguments to routine minor: Inappropriate type
@oluwakayodethompson2192 жыл бұрын
Great presentation, just the tutorial video i'm looking for. But i'm curious as to if there's a way to export river reach from AutoCad file obtained from surveyors to Hec Ras. I'll look forward to your timely response. Thanks
@pranavsingh56723 жыл бұрын
sir in RAS mapper in map layers my google satellite view is not showing i tried so many times please tell me how it is possible to see that.
@swatikulkarni65852 жыл бұрын
Sir how you are downloading the terrain? Which format is that and is there any requirement that hec ras must have that terrain in that?
@hannahmaesubang18923 жыл бұрын
Hi, just wanted to ask what will happen to the cross sections lines if there are junctions? Thanks in advance :)
@Chi8RachelB3 жыл бұрын
Hi, thank you for your presentation. I get this error message when I run my unsteady simulation: Performing Unsteady Flow Simulation HEC-RAS 6.1 September +STOP! Error in the time window. HDF_ERROR trying to close HDF output file: HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0: #000: ..\..\src\H5T.c line 1761 in H5Tclose(): not a datatype major: Invalid arguments to routine minor: Inappropriate type Error starting unsteady simulation - Stopping compute process Does anyone know how to solve it? Thank you very much
@alexfirstov63612 жыл бұрын
Hi, please help me. When calculating, the following error appears Performing Unstable Flow Simulation HEC-RAS 5.0.7 March 2019 +STOP! Error in the time window. HDF_ERROR trying to close HDF output file: HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0: Error starting unsteady simulation - Stopping compute process Computations Summary Computation Task Time(hh:mm:ss) Completing Geometry(64)
@infraplanhydrauliclaborato41082 жыл бұрын
Amazing work, Thank you!!
@sigitriswanto3443 жыл бұрын
Hi The RAS Solution, can i get a video or exsample of hec racs drainage with pump, please?
@adrianacalderon74185 жыл бұрын
What are these n values that you are adding to the table in Mannings values?
@TheRASSolution4 жыл бұрын
These are just typical values. The HEC-RAS user manual includes tables with suggested values for different land covers.
@milenasouza25364 жыл бұрын
congratulations! a useful and simple video!
@5alekm3aya13 жыл бұрын
how can i get a map and can you send this map in vedio to me pls .. thnks
@kevingalarza167510 ай бұрын
how do i create the cross seccion without draw?
@moussamara8806 Жыл бұрын
Hello everyone, I have 2 questions... 1- Is it possible to do 1D Ras Mapper modeling using rain as input data in HEC-RAS...? 2- Is it possible to use the Curve Number (CN) in 1D/2D modeling in HEC-RAS...? If you have any documents or videos, please share them with me... THANKS🙏
@ปรณัฐบุญหมั่น3 жыл бұрын
I’m can not open a Google map on the Map layer
@rustanjayceeflores58414 жыл бұрын
very helpful video. sir can i use my rainfall data to project the velocity,flow and water discharge.. and also where did you get the data you put in the flow hydrograph looking forward for your response
@siminakhlaghi54664 жыл бұрын
Hi, when I complete geometry and check error , this error is appear: "left bank station point is different than the bank line intersection( >1%) Or another error is "left reach length not defined , right reach length not defined" whilst all of geometry elements are defined. Help me please
@pathanazaz34714 жыл бұрын
Hello sir, when I added DEM (Alaska satellite or Cartosat-1) in to RAS mapper when it creat, it shows the negative elevation..what should i do?
@s.m.asaduzzamanreshad5755 жыл бұрын
my software doesn't compute! it says no station elevation data in error .........need help
@BorneanHeadHunter5 жыл бұрын
Best tutorial so far in youtube. thanks. please upload workflows integration guide for 1D and 2D QGIS and HECRAS? thanks.
@riapedrita3 жыл бұрын
Would also like to learn about different workflow with QGIS, Freecad etc
@catmemecollector6 ай бұрын
Thanks for sharing!
@benedictebatunta94874 жыл бұрын
Hello thanks for this video. But i have a issue when it comes to the processing of the unsteady flow analysis. Apparently "the time series data ends before the end of simulation" that is the message that i am still getting. If you have an idea of how to solve this please let me know.
@hec-ras2dm8534 жыл бұрын
Hello, please send me your model i will help in this my email is designnetwork87@gmail.com
@ganeshmaddikeri3 жыл бұрын
Hello, I am new HEC RAC. Please share simple tutorial to know flow rate and dept variation along channel length time for rectangle flow channel. Can we see effect of air flow above channel on flow property ( flow rate and depth ) using HEC RAS?
@rudrakshigogoi84934 жыл бұрын
I am using hecras for dhansiri watershed. On what basis does hecras simulate the data for future prediction of events. I have discharge data for present time. Can I predict future events using the same.
@rohi75973 жыл бұрын
Use HEC HMS tool
@erlinpasa25675 жыл бұрын
How's you got the map format hdf? Please share that link
@TheRASSolution5 жыл бұрын
Generally the terrain will be in tif, asc, flt, or similar format. It typically would not be provided as an hdf file. In RAS Mapper, you would click on Terrains, then select Create New Terrain, add the file, and choose a name for the hdf file that RAS Mapper will convert to.
@georgebariamis20024 жыл бұрын
Great tutorial ! Thank you so much !
@gajelaswkwk89035 жыл бұрын
Hello. i have problem for dam break analysis in HEC RAS 5.0.7. when I will do the computation the warning appears "water surface tolerance outside of range [0.0000001 to 0,006]" and "storage area tolerance outside of range [0.0000001 to 0,06]" so, what I need to improve? please help me. thanks
@TheRASSolution5 жыл бұрын
Sounds like instabilities in the model. I usually start by reducing the time step, but there could be other issues going on. If you are still having issues feel free to contact me through www.surfacewater.biz/contact/
@mahamatissa55474 жыл бұрын
Good evening how to have the data of the grounds and the projections. Thank you
@Desmondofosuanim3 жыл бұрын
kzbin.info/www/bejne/eIbNd5KDfMirj7M
@anupalbaruah36543 жыл бұрын
hI, I need to know about the RIparian vegetation simulation module in HEC RAS.iI am not able to find it. Is it integrated within HEC-RAS1D or we need to download it
@rohi75973 жыл бұрын
You need to add Manning's land cover shp file layer
@antonios55724 жыл бұрын
Hi Krey, little question, what to do if my DTM data not match the WMS basemap? I've a offset for about 140m. It isn't a real problem, but it bother me a lot
@Aldoodgrgr6 жыл бұрын
realy helpful video , thank you a lot for this, god bless you.
@robertbillings70066 жыл бұрын
Great video - thanks for posting. I'm a "geoRAS" guy just learning RAS Mapper. I would like to see more basic RAS Mapper videos . How about tying existing RAS files to new segments of RAS files from RAS Mapper.
@scholarphd40495 жыл бұрын
Thank you for the informative tutorial. I repeated the tutorial with HEC-RAS 5.0.7 several times, each time at the end when I Compute I get this answer: " Time series data ends before the end of simulation" Kindly guide me where am I going wrong..
@MrWebon5 жыл бұрын
Your simulation time should be the same as your flow hydrograph data
@TheRASSolution4 жыл бұрын
You can add zeros to any blank cells in the time series hydrograph data (or just add one zero at the beginning and end of the blank cells and use "Interpolate vales" button to add the rest. Even if there is no flow, you'll need to specifically add a zero to any ordinate that falls within the simulation window.
@beauthetford76082 жыл бұрын
Thank you so much for that!
@204-wre-chukkaangelina73 жыл бұрын
Do we need to give boundary conditions for 1D unsteady flow?
@JALAJDARPAN2 жыл бұрын
yes it's mandatory
@ngoanhtufns69563 жыл бұрын
Perfect. Thanks!
@s.m.asaduzzamanreshad5754 жыл бұрын
Thank you,sir,for your video.what will I do when I have lots of tributaries?
@rodrigoperdigao90744 жыл бұрын
Thanks for the video! It helped me!
@tranhuuhuyqytlmn4 жыл бұрын
I did every step exactly as the instruction but when I finished, there was no data for each cross-section. Could someone explain why?. I used DEM 90m to created the terrain. Thank you
@LUMIGOCHA4 жыл бұрын
For a width as long as that, you would need corss-sections longer than 90 m. A section with length below 90m would be just a line, and couldn't be able to form the intend geometry. It would be better to use a more refine DEM, such as ALOS PALSAR (12 m), free to download, so you can define a better section.
@neilapolonio37272 жыл бұрын
Hi, I would like to know where you can access or download the projection file needed which was stated in the early minutes of the video, I would really appreciate it if you can give few words or link because currently I'm following your simulation for our Thesis. Thank you very much
@TheRASSolution2 жыл бұрын
Some additional background on projections, including resources for downloading projection files, is included here: kzbin.info/www/bejne/eIbNd5KDfMirj7M
@md.abusayed62493 жыл бұрын
1. What will happen if the two rivers meet at junction point ? 2. if one river leaves from the main river ? or Additional flows add on the channel or some flows leaves from the main channel ? If anyone can please help me
@germainebas44943 жыл бұрын
thanks for the video! i have completed my step 1! Do you have any 1D-2D coupled model please?
@hend72able4 жыл бұрын
how can I get HEC-RAS?
@karalissotiris1474 Жыл бұрын
great video! to the point..
@hyacinthmelloza91463 жыл бұрын
Hi Sir. May I ask for help. Where can I input the value for Tidal?
@JALAJDARPAN3 жыл бұрын
tidal gauges(Stage hydrograph) are generally applied for the downstream boundary
@irpanch6 жыл бұрын
Halo Sir, Is there some function/tools like "Edit Vertex" after we creating a geometry file in RAS Mapper? for example, if we want to adjust the bank line that we just created, maybe it's too long or too short and we want to move it just to a specific location. I only found "Edit Feature" tools, and it moves all the line that we just created.
@irpanch6 жыл бұрын
Ok. Thank you, tested and worked.
@TheRASSolution5 жыл бұрын
Be sure to select the editing tool then double click on the feature to make changes.
@dunkinh4 жыл бұрын
It seems that after we edit the lines (flow path, or bank lines), the newly edited information or data can not be passed along back to the geometry file. Example, after editing bank lines, the left/right bank stations in XS edit window do not get updated to the new bank line position/station.
@kkuholski236 жыл бұрын
Are there any additional videos to help someone new at setting up an area for the first time and getting the correct rainfall number for different years event?
@TheRASSolution4 жыл бұрын
Rainfall will be specific to each geographic area, and you would need to compile gauge data for your local region from whatever jurisdiction or agency collects the data.
@madhurendramadhukar84 жыл бұрын
@The Ras Solution: can you please make one video on Dam backwater analysis?
@giancarlonolledi3584 жыл бұрын
Fantastic! really thanks
@JoyceNAMUGANGA-l9p Жыл бұрын
it's indeed helpful thanks
@bagashendip47946 жыл бұрын
Really help my studies, can i know the resolution of your dem for your terrain input? and where did you get the dem file, thank you
@bagashendip47946 жыл бұрын
Thank you from Indonesia. I hope there will be dem with high resolution for my country soon. Im still using 30m resolution data from USGS and thats not good enough
@tyeasmin6 жыл бұрын
is it free for Canada digital elevation models too? If so, would you be able to forward the website, please?
@TheRASSolution5 жыл бұрын
The terrain data in the model comes from the Australian government. Links are included in Workshop 1 document which is available for download at www.surfacewater.biz/workshop/. There are many, many data sources for individual countries. Probably just start by googling "Free DEM data" with the name of the area included in the search.
@retrovintage9504 жыл бұрын
Ras Mapper NOT Opening... ? how
@fcernst4 жыл бұрын
Great presentation..very helpful! I would like to see a 1D model split into an upstream and downstream reach, then connect a 2D flow area between them... to create one 1D/2D model. Thank you.
@md.abusayed62493 жыл бұрын
If the reaches are more than one then what will happen ?
@rohi75973 жыл бұрын
Add junction point📍
@md.abusayed62493 жыл бұрын
@@rohi7597 can you please send me any video tutorial link to add junctions?
@mohammadhassan89155 жыл бұрын
wonderful sir ! where can i download the terrain file (.hdf) for my region of interest ..?
@TheRASSolution4 жыл бұрын
I've added a "prequel" video that outlines the data sources for the files we've used: kzbin.info/www/bejne/eIbNd5KDfMirj7M. Additional data sources include openDEM. NASA, USGS, etc. Every region will have its own repository for elevation data, sometimes requiring payment, sometimes free. Keep in mind you generally won't be able to download hdf format files for the data - the terrain surfaces will usually come in geotif, asc, flt, dem, or similar format. You would then need to create the hdf file in HEC-RAS using those files as a basis.
@marlonsuelto81533 жыл бұрын
Hello Sir. Do we need to buy the DEM file?
@rohi75973 жыл бұрын
USGS
@amruthvaragani64294 жыл бұрын
really helpful, Sir after mapping the bank lines, flow lines and while drawing the cross section line it is showing the negative values (like : 0, -0.003, 0, -0.004....) can any one help me with this ??
@JALAJDARPAN3 жыл бұрын
there is wrong projection of .prj file. projection may be degree in that's why you're getting like that.change projections to meters
@mustaphaboukhelifa80524 жыл бұрын
Really nice Video and great Job. Is it possible to create multiple cross section with preset spacing and width (as in autocad civil 3d) in ras mapper?
@patrickhumas51275 жыл бұрын
when ı press the ras mapper, ıt's not opened.what is the reason, how can ı open it?
@TheRASSolution5 жыл бұрын
Generally that's related to a Windows issue, especially if it's 32 bit (RAS Mapper is 64 bit). Be sure to run all windows updates, including .net framework and that will usually solve the problem.
@nouredinetouati64385 жыл бұрын
please how to edit manning's value ?
@TheRASSolution4 жыл бұрын
You can edit Mannings roughness in each cross section individually or use "Tables | Mannings n" in the Geometry Window
@nouredinetouati64384 жыл бұрын
@@TheRASSolution thank you
@lenonoliiveira4 жыл бұрын
Thank you so much!
@sanatanart5444 жыл бұрын
I am going to start my project using Hec Ras. have you completed your project topic? Please help me sir...please
@archanagautam85064 жыл бұрын
Plz make video how to make terrain in hdf file and second how to get prj file
@JALAJDARPAN3 жыл бұрын
Hdf file constructs TIN(triangulated network) from the input DEM. i made video on generation of prj. file tutorial .you can check that in my channel
@awelhaji55314 жыл бұрын
That was really good. Sir i want to ask you one question how i can simulate river discharge using HEC RAS
@HHHH-ki4uu9 ай бұрын
Awesome
@kiritokun50824 жыл бұрын
Im having ws el error computing unsteady flow pls help
@hec-ras2dm8534 жыл бұрын
Please contact me on my email i will be able to help Designnetwork87@gmail.com
@daoudmannai5764 жыл бұрын
hi pleas you cane give me site for downloud ras mapper
@salpiseyheng60895 жыл бұрын
Dear Dr. Krey, I would like to ask you if I have floating house in the river and I want to include them in my model because they also effect to flow. How to do it, Dr.? Thank you.
@rajendrakunwar79845 жыл бұрын
great content. really. hope there are some ways i can help you. keep it up and upload other videos too
@biplabbiswas88774 жыл бұрын
EXCELLENT!
@eyiigamartin3005 жыл бұрын
I want to use HEC RAS to do a dam break analysis. any help. otherwise great video
@TheRASSolution5 жыл бұрын
You could try the free webinar at kzbin.info/www/bejne/n4OmiqCHqLyHjqM or sign up for the upcoming online course at www.surfacewater.biz/online/
@BobBob-qg5cx5 жыл бұрын
Can you please send me the demo files that you used? thanks
@TheRASSolution5 жыл бұрын
Links are included in Workshop 1 document which is available for download at www.surfacewater.biz/workshop/.
@jorgealbertobelmontguadarr35635 жыл бұрын
Where I can find those files? (.hdf & .prj)
@TheRASSolution5 жыл бұрын
The first steps and links sre covered in Workshop 1 which is available for download at www.surfacewater.biz/workshop/