Easy HECRAS 1D Flood Modelling Tutorial : Steady Flow Analysis: HECGeoRAS not Required

We discuss about one dimensional steady flow analysis in HECRAS.

#HECRAS #onedimensional #tutorial #beginners #hydraulic #modeling #flood #1dmodeling #onedimensional

[sheminjohn]

Thank you very much. This is the most short, simple, effective flood mapping video I have seen till now.

[AARJUADHIKARI-mcjz]

Is there any process so we can automate cross section lines? I wanted cross section data of whole stretch of river.

[TheFrothyBrew]

When specifying the steady flow boundary conditions, you were using arbitrary values. I'm currently learning how to use the HEC-RAS software. If one wanted to practice using real data, how could I find this information?

[jeromemensah]

And why is one boundary condition for flow hydrograph and the second for stage hydrograph?

[jeromemensah]

I noticed you gave a value of 0.001 to the upstream for subcritical flow. Could you kindly explain why subcritical flow had a value for upsteam boundary condition ?

[DavidSancho-lp]

How can we get manning number for a large river channel

[wrcstrshr]

Hello sir. Thanks for this tutorial. But may I ask if this process is applicable in determining the adequacy of an Irrigation System to holds rainfall water? Thanks

[jeromemensah]

Hello, thank you very much. This was helpful but I have a question please. How do we know what value to input as the flow data. I saw you give a couple of values but looks like random values. I will like to know why we need to input a flow data and how to get what values to input. Thank you

[jeromemensah]

And also when the profile names are changed to years (eg. 5yrs, 10 yrs etc), what does it mean. And why do we create 3 or 5 profiles.

[jeromemensah]

Hello, May I kindly ask another question please.
In unsteady flow data, how do we know what kind of values to input as boundary condition and why

[ysateesh]

how to get projection file
please help me