Checking for non-preferred file/folder path names (may take a long time depending on the number of files/folders) ...
This resource contains some files/folders that have non-preferred characters in their name. Show non-conforming files/folders.
This resource contains content types with files that need to be updated to match with metadata changes. Show content type files that need updating.
| Authors: |
|
|
|---|---|---|
| Owners: |
|
This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) to determine if accessing this resource is possible. |
| Type: | Resource | |
| Storage: | The size of this resource is 11.5 MB | |
| Created: | May 09, 2021 at 11:27 a.m. | |
| Last updated: | May 09, 2021 at 11:31 a.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Discoverable |
|---|---|
| Views: | 529 |
| Downloads: | 0 |
| +1 Votes: | Be the first one to this. |
| Comments: | No comments (yet) |
Abstract
Laboratory experiments were conducted to derive the relationship between suspended sediment concentration (SSC) of an industrial ash in water and the signal-to-noise ratio (SNR) measured by a 10 MHz acoustic Doppler velocimeter (ADV). Small portions of ash were added in steps (from 0.006 gl-1 up to 20 gl-1) into a stirred water tank, while ADV was recording changes in SNR, with various combinations of ADV settings, which included power (LOW and LOW+), transmit length (TL of 0.3 mm and 0.6 mm) and frequencies of data gathering (25 Hz and 100 Hz). Different backscatter responses were detected depending on the ADV settings and SSC. Frequency changes did not produce major changes in SNR values, power intensity variation caused a displacement in SNR as suggested by ADV manufacturer. The major change in SNR vs SSC plot type was noticed when TL was changed, where the linearity of the response was different for both cases. The signal saturation, where the linear evolution starts to decay, occurred for a lower value of SSC for bigger value of TL. Samples were collected for gravimetric analysis of SSC as well as granulometry. On lower SSC samples, only finer ash portion was detected but from SSC greater than 0.15 gl-1 bigger particles were detected. The findings indicate that particle type and size distribution changes with concentration above 0.5 gl-1, and this may lead to errors in the acoustic estimates of SSC in ashes-laden flow.
Subject Keywords
Content
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
Comments
There are currently no comments
New Comment