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Volume Title: ICASGE2023

DOI: ICASGE-GEO

¹Bhineshwar Brahmachari; ²Bhabani S Das ; ¹Shiv Shankar Kumar; Bhabani S Das; Shiv Shankar Kumar

¹Civil Engineering Dept, NIT Patna, Ashok Rajpath

²Civil Engineering Dept, NIT Patna, India

Dams are constructed to fulfilled countless human and animal needs by controlling water’s irregular and destructive flow. The dam protects a huge community as well as natural creatures around the protected area so if it fails, it gives catastrophic results in a very short time so safety and monitoring of the dam become very necessary criteria. It includes appropriate design, construction, and monitoring of the actual behaviours of the dam during operation and its construction therefore determination of dam performance and its evaluation are very important criteria in the dam structure. Presence of obstacles in the bottom causes the reflection of flood waves and the formation of the negative bore. Thus, mixed flow condition is generated near bumps increasing the complexity of existing technology for modelling and risk assessments of the new problem may also arise. CFD tools exponentially increase computational capability with a better understanding of physics. Now-a-days CFD simulation is applied widely in areas of safety precaution and loss prevention. Reynolds Averaged Navier Stokes (RANS) has been used to for the present study using ANSYS Fluent. Comparison of the CFD simulated results have been carried with the results of experimental data set available in the literature. The CFD results obtained using k-e turbulence model reproduces the flow under investigation with reasonable accuracy.

Dam structure; CFD; k-e turbulence model; RANS equation

Geotechnical Engineering (GEO)