Papers by Farid Miarnaeimi
Universities in the United Kingdom (UK) are committed to improving and enhancing the experience o... more Universities in the United Kingdom (UK) are committed to improving and enhancing the experience of their students. This preoccupation is best epitomised by the Times Higher Education (THE) Student Experience Survey which annually reveals the best universities in the UK for student experience. What is the student experience and do students understand it in the same way as Higher Education (HE) staff? Is it actually as important to students as it is to Higher Education Institutions (HEIs) and as conveyed in university league tables? The first National Union of Students (NUS) Student Experience report found that just 29 per cent of students said that their motivation for going to university was “for the experience” (2008, p.6). This presentation reports on research which aims to understand the student experience. As the number of UK university students living at home is increasing and the traditional, residential experience of students immersing themselves in university life is in decl...
Iranian Journal of Science and Technology-Transactions of Civil Engineering, Feb 8, 2022
This paper provides a novel meta-heuristic optimization algorithm. The behaviors of flying squirr... more This paper provides a novel meta-heuristic optimization algorithm. The behaviors of flying squirrels in the nature are the main inspiration of this research. These behaviors include flying from tree to tree and walking on the ground or on a tree branch to find food. They also contact each other with chirp or squeak. This algorithm is named flying squirrel optimizer (FSO). Two main theories of motion were used for the simulation of flying and walking of the flying squirrels and they are Levy flight and normal random walk. FSO is also benchmarked on twelve mathematical functions and the answers are compared with MFO, PSO, GSA, BA, FPA, SMS, and FA. The results show that FSO can provide good results when compared with these well-known meta-heuristics approaches. Five classical engineering problems and a real issue in the field of dam engineering were employed to challenge the FSO abilities in solving engineering design problems. The results also show that the proposed FSO algorithm can...
Engineering with Computers
Applied Mathematical Modelling
Applied Mathematical Modelling
Local scouring means removing bed rivers that is caused by changing the flow pattern due to the e... more Local scouring means removing bed rivers that is caused by changing the flow pattern due to the existence of hydraulic structures. The downstream of transverse structures (such as check dams, rock chutes and block ramps) are usually located in stilling basins that are menaced by scouring. Block ramps are restoration structures whose ramps are armored by blocks to rehabilitate bed rivers. River environment issues particularly fish passing can be preserved using block ramps. Moreover large amounts of energy are dissipated due to block ramps head difference. Therefore block ramps have been used rather drops and sills recently. In addition the hydraulic jump which takes place in the downstream of block ramps can be an increasable factor of scour depth. In this study mean scouring depth in stilling basin downstream of block ramps using ANN and ANFIS are investigated. Consequently the soft computational methods are compared with experimental and statistical methods which were carried out ...
Abstract: Failure of a concrete gravity dam will cause inevitable human loss and financial damage... more Abstract: Failure of a concrete gravity dam will cause inevitable human loss and financial damages. In this study SARIYAR concrete gravity dam, located in turkey was chosen as a case study, to investigate the probability of the dam’s sliding failure in various conditions. The most important reason of sliding failure in a concrete dam is lateral and uplift loads, caused by increase in the level of reservoir water. Different scenarios were considered which might happen to a dam, simulating all the possible water levels of reservoir. Afterwards, the probability of failure and reliability index were calculated with Monte Carlo simulation and FORM method, in all conditions and comparison was carried out between the results. The influence of the Number of Simulations (NOS) in the Monte Carlo method was also discussed. Results showed that, in some cases, the system resistance was much more than the loads, and the limit state function had a significant distance from the samples. In such states, Monte Carlo was unable to calculate the probability of failure with each NOS. However, FORM method could obtain the Reliability Index (β) in these situations. It was found out that these values were far from the reality. With increase in the forces, the degree of precision of the responses from Monte Carlo grew high. The probability of failure generated by FORM method was less than that in reality. The failure of a concrete gravity dam will cause inevitable human loss and financial damages. In this study SARIYAR concrete gravity dam, located in turkey was chosen as a case study, to investigate the probability of the dam’s sliding failure in various conditions. The most important reason in sliding failure of a concrete dam is lateral and uplift loads, caused by increase in the reservoir water level. Different scenarios were considered which might happen to a dam, simulating all the possible reservoir water levels. Thereafter, the probability of failure and reliability index was calculated with Monte Carlo simulation and FORM method, in all conditions and the results were compared to each other. The effect of the Number of Simulations (NOS) in the Monte Carlo method was also discussed. Results showed that, in some cases, the resistance of the system was much more than the loads, and the limit state function had a significant distance from the samples. In such states, Monte Carlo was unable to calculate the probability of failure with each NOS, while FORM method managed to obtain the Reliability Index (β). It became clear that these values were far from the reality.
Keywords: Concrete Dam, Sliding Failure, Monte Carlo, Form
240
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Papers by Farid Miarnaeimi
Keywords: Concrete Dam, Sliding Failure, Monte Carlo, Form
240
Keywords: Concrete Dam, Sliding Failure, Monte Carlo, Form
240