INFLUENCE OF TAILWATER FROUD NUMBER ON SECONDARY FLOW PATTERN AT A 60 DEGREE LABORATORY OPEN CHANNEL-CONFLUENCES BY SSIIM2 MODEL

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

GHOBADIAN R.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: AGRICULTURAL RESEARCH Year:2008 | Volume:8 | Issue:1 (B) Page(s): 209-220

Download Full-Text

Persian Verion

View:

735

Download:

Cites:

Information Journal Paper

Title

INFLUENCE OF TAILWATER FROUD NUMBER ON SECONDARY FLOW PATTERN AT A 60 DEGREE LABORATORY OPEN CHANNEL-CONFLUENCES BY SSIIM2 MODEL

Author(s)

GHOBADIAN R. | Issue Writer Certificate

Keywords

CHANNEL-CONFLUENCEQ3

SECONDARY FLOWQ3

FROUD NUMBERQ3

SSIIM2 MODELQ3

Abstract

Flow characteristic at open channel-junction (river confluence) have represented a major challenge for 3-D applications of CFD in last decades. SECONDARY FLOWs not only will change the vertical profile of primary velocity but also will change scouring and sedimentation pattern at channel- confluences. By present, with laboratory experimental test, field measurement and mathematic simulation the effect of discharge ratio, confluence angle and bed discordance carried out on 2-D or 3-D flow patterns. This research uses a 3-D program (SSIIM 2) for simulation the effect of tail water FROUD NUMBER (Frd) on flow pattern; especially SECONDARY FLOW pattern at a 60 degree rectangular channel confluence. The model uses a three-dimensional unstructured grid with a mixture of tetrahedral and hexahedral cells to model the geometry. The water flow is computed by solving the Navier-Stokes equations using k-e RNG turbulent model. The model was tested by comparing with two-dimensional velocity fields at confluence that have measured by Laser Doppler Velocimeter and water surface profile on a physical model. The result showed that with increasing tail water FROUD NUMBER, penetration of lateral flow into the main channel decreased. The curvature of Lateral flow stream line when entrance to channel- junction increases with increasing Frd; while the entrance angle of lateral flow decreases. Additionally, with increasing Frd secondary circulation that begins to performance just from location of downstream corner of junction became weaker. Also, SECONDARY FLOW patterns and number of circulation cell will change strongly with moving to downstream and passing from separation zone. On the other hand, only one circulation cell of SECONDARY FLOW is appeared, when Frd reduces. By moving downstream of confluence the center of this circulation cell change from top of water at right embankment toward the center of cross section

Cites

No record.

References

No record.

Cite

APA: Copy

GHOBADIAN, R.. (2008). INFLUENCE OF TAILWATER FROUD NUMBER ON SECONDARY FLOW PATTERN AT A 60 DEGREE LABORATORY OPEN CHANNEL-CONFLUENCES BY SSIIM2 MODEL. AGRICULTURAL RESEARCH, 8(1 (B)), 209-220. SID. https://sid.ir/paper/84777/en

Vancouver: Copy

GHOBADIAN R.. INFLUENCE OF TAILWATER FROUD NUMBER ON SECONDARY FLOW PATTERN AT A 60 DEGREE LABORATORY OPEN CHANNEL-CONFLUENCES BY SSIIM2 MODEL. AGRICULTURAL RESEARCH[Internet]. 2008;8(1 (B)):209-220. Available from: https://sid.ir/paper/84777/en

IEEE: Copy

R. GHOBADIAN, “INFLUENCE OF TAILWATER FROUD NUMBER ON SECONDARY FLOW PATTERN AT A 60 DEGREE LABORATORY OPEN CHANNEL-CONFLUENCES BY SSIIM2 MODEL,” AGRICULTURAL RESEARCH, vol. 8, no. 1 (B), pp. 209–220, 2008, [Online]. Available: https://sid.ir/paper/84777/en

Related Journal Papers