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Shahidul Islam

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About Shahidul Islam

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  1. Shahidul Islam

    What is actually meant by Boundary stress?

    I have got the answer. Boundary stress is a standard output of sms and it represents bed shear stress based on frictional resistance of flow. It is depth averaged value. And, of course, I can calculate bank erosion using fine mesh.
  2. Shahidul Islam

    What is actually meant by Boundary stress?

    Is Boundary stress given by SMS after postprocessing the flow induced stress? Is it depth averaged value? Can I calculate bank erosion by this value? ---Shahidul Islam.
  3. Shahidul Islam

    Local Refinement

    Thanks.
  4. Shahidul Islam

    Local Refinement

    I read from a book that "Where there is a sharp change, high resolution should be used there." I think, this is talking about refining mesh.
  5. Shahidul Islam

    Local Refinement

    I want to know about local refinement and how can I do it by SMS software?
  6. Shahidul Islam

    Model is giving all output value zero

    Sir, I am using 12.1.6 version of SMS. I ran the model again and this time, model gave me better result. I have some more questions which are given below: 1. Are there any hard and fast rule for creating domain coverage ? As for example, is there any rule that domain should be within TIN? 2. How can I view the number of elements in existing mesh? 3. I want to know about time step and simulation time for running hydraulic model which I have to input into model control section. If you have any effective document defining this terms, provide me, that would be very helpful for me. Thanking you. Shahidul Islam
  7. Shahidul Islam

    Confusion in domain creating

    Thank you very much.
  8. Shahidul Islam

    Confusion in domain creating

    In SMS window, creation of arc is allowed only in plan view. When I go through some sms tutorial, I have seen some domain arc along channel bottom line which can be seen only in 3D view. I want to know, how can I perform this ? A sample picture from SMS tutorial is given below:
  9. Shahidul Islam

    Model is giving all output value zero

    Sir, Thank you for your reply. I have tried many times but failed to identify the problem. There must be some problems which I don't know. I am giving you the download link of file containing data and also attaching the required screenshot. Kindly, see the attachment and let me know, what may be the problem. https://drive.google.com/open?id=15azgnF0TtRosOBNtQHYZKK81aOMw92T9 Thanking you, Shahidul Islam
  10. Shahidul Islam

    Model is giving all output value zero

    Hello, I am doing a SMS-SRH 2D model. When I ran the model, it gave me all output value zero. There are several discontinuity in boundary line after mesh generation. Is that creating the problem? I have attached a screenshot herewith.
  11. Shahidul Islam

    Sediment materials is missing in SRH-2D model type.

    Thank you, sir. I understand.
  12. I am doing a sediment transport model in SMS SRH-2D. While assigning sediment material properties, I can't see any option for selecting sediment materials as coverage type for SRH 2D model. Can someone provide me some insight on how can I solve this problem? (A screenshot of problem is given below.) N.B.: I am using SMS 12.1(64bit).
  13. Shahidul Islam

    Satellite image doesn't match with scatter data.

    Sir, Thank you very much. Problem is solved!!!
  14. Shahidul Islam

    Satellite image doesn't match with scatter data.

    Sir, Thank you for your reply. According to your given information, I loaded a dynamic map and saw that object projection is incorrect. I think, surveyor made a shift of co-ordinate. I came to know that, there is a different projection system for my country as it falls into two UTM zone. How can I add this new projection named BTM( Bangladesh Transverse Mercator) in SMS ? Projection Information is given below: Thanking you, Shahidul Islam.
  15. I have downloaded a georeferenced satellite image from USGS earth explorer website. I opened both the satellite image and scatter data in SMS and made same projection for each. But, they were in different location as shown in picture below. How can I fix this issue?
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