Search Results - "Shafaghat, R."

3D Numerical Modeling and Geometry Optimization of an Oscillating Water Column Device in Sloshing Conditions Using Openfoam and Genetic Algorithms by Razavi, S S, Shafaghat, R, B. Alizadeh Kharkeshi, Eskandari, J

“…Among various types of wave energy converters, the oscillating water column (OWC) has attracted significant research attention. In this paper, a 1:10 scale OWC…”
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Enhancing Performance Evaluation of Archimedes Screw Turbines under Optimal Conditions: A Focus on Flow Rate Analysis, Empirical Equations, and Comparative Scaling Methods by Zamani, M., Shafaghat, R., Alizadeh Kharkeshi, B.

“…Due to the necessity of utilizing renewable energies, the Archimedes screw turbine can be used as a power generation converter for the use of hydropower energy…”
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Performance of Heat Recovery Cycle in order to Enhance Efficiency and its Mutual Effect on the Engine Performance with the Aid of Thermodynamic Simulation by Radaei, H., Shafaghat, R., Talesh Amiri, S., Alizadeh Kharkeshi, B.

“…Considering that the heat required for the Waste heat recovery (WHR) cycle of the engine is provided from two parts of the exhaust gas and the cooling system,…”
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Investigating the Effects of Blockage Ratio on the Performance of a Surface-piercing Propeller in Free Surface Water Tunnel Tests by Beykani, M., Shafaghat, R., Yousefi, A.

“…This paper investigates the effect of the immersion ratio parameter on the hydrodynamic performance of three surface-piercing propellers with diameters of…”
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The effect of inlet velocity of water on the two-phase flow regime in the porous transport layer of polymer electrolyte membrane electrolyzer by Hoseini Larimi, S. Z., Ramiar, A., Esmaili, Q., Shafaghat, R.

“…In this paper two-dimensional (2D), two-phase numerical model is proposed to investigate the effect of water velocity in the channel on the two-phase flow…”
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Effect of Diesel-engine Operating Conditions on Performance of Waste Heat Recovery Cycles: A 4E Analysis by Alizadeh Kharkeshi, B., Shafaghat, R., Talesh Amiri, S., Tahan, A. M., Ardebilipour, A.

“…In waste heat recovery from a heavy-duty diesel engine, with a focus on engine speed's impact, is explored. The critical problem of enhancing energy efficiency…”
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An Experimental Study to Apply an Absorption Refrigeration Cycle as a Dehumidifier in Humidification-Dehumidification Solar Desalination System by Aghajani Afghan, S., Shafaghat, R., Aghajani Afghan, A., Hosseinalipour, S. M.

“…In this paper, the performance of a hybrid humidification-dehumidification (HDH) desalination system is experimentally studied. The system operates as an…”
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Numerical Simulation of a Reactivity Controlled Compression Ignition Engine in order to Investigate the Effects of Adding Water to Low Reactivity Fuel by Talesh Amiri, S., Shafaghat, R., Jahanian, O., Sadripour, G.

“…For decreasing the fuel consumption of internal combustion engines, and also reducing the emissions, investigation of the effective parameters on power,…”
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Experimental Evaluation of the Effect of Incident Wave Frequency on the Performance of a Dual-chamber Oscillating Water Columns Considering Resonance Phenomenon Occurrence by Shafaghat, R., Fallahi, M., Alizadeh Kharkeshi, B., Yousefifard, M.

“…This paper has experimentally investigated the performance of a dual-chamber oscillating water columns (OWC) imposed on Caspian Sea wave’s characteristics…”
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Experimental Study to Investigate Effect of Pitch Ratio and Number of Blades on Hydrodynamic Performance of Surface Piercing Propellers by Yousefi, A., Shafaghat, R., Beykani, M., Aghajani Afghan, A., Seyyed Mostafa, S. T.

“…Surface piercing propellers are special supercavitation propellers operating at free surface. These propellers are designed to have the best performance at the…”
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A study into the effect of loading conditions on the resistance of asymmetric high-speed catamaran based on experimental tests by Hajiabadi, A., Shafaghat, R., Kazemi Moghadam, H.

“…Preparing high speed and sea keeping simultaneously are outstanding features of Catamaran boats (as one of multi-hull boats). In this paper, influence of…”
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Determination of Supercavity Shape for Axisymmetric Cavitators at Different Non-Zero Attack Angles, Using Boundary Element Method by Shafaghat, R., Hosseinalipour, S. M., Vahedgermi, A.

“…When fluid passes a cavitator in the supercavitating flow, a supercavity forms behind the cavitator. Variation of the cavitator attack angle can influence…”
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Shape optimization of two-dimensional cavitators in supercavitating flows, using NSGA II algorithm by Shafaghat, R., Hosseinalipour, S.M., Nouri, N.M., Lashgari, I.

“…The reduction of energy consumption of high speed submersible bodies is an important challenge in hydrodynamic researches. In this paper, shape optimization of…”
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Mathematical Approach to Investigate the Behaviour of the Principal Parameters in Axisymmetric Supercavitating Flows, Using Boundary Element Method by Shafaghat, R., Hosseinalipour, S. M., Nouri, N. M., Vahedgermi, A.

“…In this paper, a direct boundary element method (DBEM) is formulated numerically for the problems of the unbounded potential flows past supercavitating bodies…”
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Numerical Investigation of Reactivity Controlled Compression Ignition Engine Performance under Fuel Aggregation Collision to Piston Bowl Rim Edge Situation by S. Talesh Amiri, R. Shafaghat, O. Jahanian, A. H. Fakhari

“…To better homogenize the mixture of fuel and air in the combustion chamber and to enhance the controllability of ignition timing in Reactivity Controlled…”
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Experimental study of immersion ratio and shaft inclination angle in the performance of a surface-piercing propeller by Seyyedi, Seyyed Mostafa, Shafaghat, Rouzbeh, Siavoshian, Mohioddin

“…Surface-piercing propellers have been widely used in light and high-speed vessels because of their superior performance. Experimental study of these propellers…”
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Turbulent flow analysis and cavitation prediction in axial cooling water pump by Vazifeshenas, Yousef, Farhadi, Mousa, Sedighi, Kurosh, Shafaghat, Ruzbeh

“…The aim of this literature is to investigate the performance and three-dimensional flow field in an axial flow CW pump and observing cavitation phenomenon in…”
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DETERMINATION OF SUPERCAVITY SHAPE FOR AXISYMMETRIC CAVITATORS AT DIFFERENT NON-ZERO ATTACK ANGLES, USING BOUNDARY ELEMENT METHOD by Shafaghat, R, Hosseinalipour, S M, Vahedgermi, A

“…When fluid passes a cavitator in the supercavitating flow, a supercavity forms behind the cavitator. Variation of the cavitator attack angle can influence…”
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Shape optimization of axisymmetric cavitators in supercavitating flows, using the NSGA II algorithm by Shafaghat, R., Hosseinalipour, S.M., Lashgari, I., Vahedgermi, A.

“…The reduction of energy consumption for high speed submersible bodies is an important challenge in hydrodynamic researches. Supercavitation is a hydrodynamic…”
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Derivation of a correlation for drag coefficient in two-dimensional bounded supercavitating flows, using artificial neural networks by Shafaghat, R., Hosseinalipour, S. M., Derakhshani, S. M. E.

“…Artificial neural networks (ANNs) are used as a new approach for the determination of the relations between drag coefficient and Cavitation Number with cavity…”
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