Ehab Gomaa | Taif University, Kingdom of Saudi Arabia (original) (raw)
Papers by Ehab Gomaa
The velocity of flow, permeability, and pressure distribution have been considered in this work. ... more The velocity of flow, permeability, and pressure distribution have been considered in this work. The transient simulation of a porous rock block has been carried out. Specific storage and Darcy's constants have been used as input parameters to investigate the material's behavior. Physically, the Darcy's constant and the storability are used to indicate the permeability in this simulation. Hence, the transient porous analysis was selected in this model using LISA FE software. This model describes the simulation of the fluid movement (velocity potential) using the injection of the fluid in a central hole of a block. In addition, the production well hole was simulated. Dramatically, the injection of fluid will produce the fracture surface. Hence, the flow behavior of a fractured surface was investigated in porous rock. Then the nature of the cracking surface and direction can be estimated using the flow map.
Procedia Structural Integrity
The underwater mining has increased in the recent years and the growing awareness of the potentia... more The underwater mining has increased in the recent years and the growing awareness of the potential impacts on the environment, as results of increasing the encroachment on the marine environment. Therefore, the debate has increased about how to protect this environment by using the scientific research that's relevant to the various environmental viii 6.2.
Journal of Petroleum and Mining Engineering, 2021
In this paper, seven production methods including drilling and blasting are evaluated concerning ... more In this paper, seven production methods including drilling and blasting are evaluated concerning technical, environmental, and economical aspects. These production techniques are wheel excavator, hydraulic excavator, surface miner, hydraulic hammer, bulldozer, and face miner. This study is carried out to find the best technique, that may alternate to the classical drilling and blasting method. However, the use of such classical production method may be the only option for some quarry operators. Various comparison aspects are investigated concerning the welfares of these systems, the relation between the potential improvement of the ecological effects on the one hand and the technological potential, and the costs on the other. Two different statistical analyses that are the Fuzzy Method Analyses Hierarchical Process (AHP) and Principal Component Analyses (PCA) are applied in this assessment. The final evaluation of the two mathematical models is matched closely, and it proves that the drilling and blasting is the most efficient method then come after it bucket wheel excavator, hydraulic excavator, surface miner, hydraulic hammer, bulldozer, and face miner, respectively. The range of competency among these techniques regarded to drilling and blasting efficiency is ranged from 78.5% to 20%.
The velocity of flow, permeability, and pressure distribution have been considered in this work. ... more The velocity of flow, permeability, and pressure distribution have been considered in this work. The transient simulation of a porous rock block has been carried out. Specific storage and Darcy's constants have been used as input parameters to investigate the material's behavior. Physically, the Darcy's constant and the storability are used to indicate the permeability in this simulation. Hence, the transient porous analysis was selected in this model using LISA FE software. This model describes the simulation of the fluid movement (velocity potential) using the injection of the fluid in a central hole of a block. In addition, the production well hole was simulated. Dramatically, the injection of fluid will produce the fracture surface. Hence, the flow behavior of a fractured surface was investigated in porous rock. Then the nature of the cracking surface and direction can be estimated using the flow map.
Procedia Structural Integrity
The underwater mining has increased in the recent years and the growing awareness of the potentia... more The underwater mining has increased in the recent years and the growing awareness of the potential impacts on the environment, as results of increasing the encroachment on the marine environment. Therefore, the debate has increased about how to protect this environment by using the scientific research that's relevant to the various environmental viii 6.2.
Journal of Petroleum and Mining Engineering, 2021
In this paper, seven production methods including drilling and blasting are evaluated concerning ... more In this paper, seven production methods including drilling and blasting are evaluated concerning technical, environmental, and economical aspects. These production techniques are wheel excavator, hydraulic excavator, surface miner, hydraulic hammer, bulldozer, and face miner. This study is carried out to find the best technique, that may alternate to the classical drilling and blasting method. However, the use of such classical production method may be the only option for some quarry operators. Various comparison aspects are investigated concerning the welfares of these systems, the relation between the potential improvement of the ecological effects on the one hand and the technological potential, and the costs on the other. Two different statistical analyses that are the Fuzzy Method Analyses Hierarchical Process (AHP) and Principal Component Analyses (PCA) are applied in this assessment. The final evaluation of the two mathematical models is matched closely, and it proves that the drilling and blasting is the most efficient method then come after it bucket wheel excavator, hydraulic excavator, surface miner, hydraulic hammer, bulldozer, and face miner, respectively. The range of competency among these techniques regarded to drilling and blasting efficiency is ranged from 78.5% to 20%.