The research activities of the considered group are based on numerical simulation of physics phenomena's and composed of three themes:
Plasma Physics: During the last few years, there have been a lot of activities in the field of a plasma physics because of its important role in understanding a plasma physics because of its important role in understanding the properties of different collective processes in space and astrophysical phenomena, as well as for many industrial and physical applications. In the proposed model, various nonlinear physical effects are considered on different plasma systems such as: relativistic, dispersive and non-dispersive medium, fluid temperature (for ion and/or for dust), dust charge fluctuation, superthermal, non-isothermality, non-thermality, vortices, and also contribution of higher-order nonlinearities. Therefore, our objective of the proposed model is to study nonlinear physical effects on the propagation, the instability, and the interaction of solitary waves, shock waves, and periodic traveling waves in plasmas and their application in astrophysical objects and laboratories.
Quantum Mechanics: Anharmonic oscillator potentials [AOP] have attracted a lot of attention from scientists in quantum physics fields during the last 50 years. Such potentials have interesting subjects in both from the viewpoint of theoretical and experimental studies and in terms of their applications in the various fields of physics, mathematics and chemistry. One such an example, studies of AOP contribute to the interpretation of vibration spectra of the diatomic molecules in chemical physics and in classical physics, which in turn explains the thermal expansion.
Fluid Mechanics: The aim of the research activities is to investigate numerically the coupled heat and mass transfer in a desiccant liquid air membrane energy exchanger as well as the effect of different operating parameters relative to humid air on the efficiency and performance of the process. The proposed numerical approach which is based on the energy and mass equations describes coherently the coupled heat and mass transfer processes taking place in the membrane based enthalpy exchanger with counter flow geometrical configuration. The proposed model take into account the saturated pressure by including it in the boundary conditions at the interface between the humid air and the desiccant solution.
project name : Nonlinear solitary pulses in a quantum semiconductor plasma: An application in GaAs
Summary : This proposal represents a study for modelling of nonlinear electrostatic waves in quantum semiconductor plasma to investigate recent recorded observations in laboratory plasma physics.
Financial Support :
King Khalid University
Time Period : 2017–2018
Grant Number :
Principal Investigator :
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project name : Generation of Nonlinear Shock Waves in a Superthermal Plasma
Summary : In this project, the propagation of nonlinear ion-acoustic shock waves theoretically in magnetoplasma composed of cold viscous ions with two superthermal electrons is discussed.
Financial Support :
King Abdul-Aziz City for Sciences and Technology
Time Period :
Grant Number: T-1382089
Principal Investigator :
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project name : On the Nonlinear Electrostatic Waves in a Plasma: An Application in Compact Astrophysical Objects
Summary : In the last years, the study of relativistic degenerate dense magnetoplasmas has become one of the most important activities of quantum plasma physics because of their vital role in the investigation of the compact astrophysical objects. Therefore, in this project, the electrostatic travelling wave structures are investigated in degenerate dense magnetoplasmas consisting of relativistic degenerate inertialess electrons and positrons, as well as nondegenerate inertial cold ions.
Financial Support :
King Abdul-Aziz City for Sciences and Technology
Time Period:
Grant Number : A-T-1958-38
Principal Investigator :
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project name : Study of the anharmonic oscillator potentials
Summary : Anharmonic oscillator potentials [AOP] have attracted a lot of attention from scientists in quantum physics fields during the last 50 years. Such potentials have interesting subjects in both from the viewpoint of theoretical and experimental studies and in terms of their applications in the various fields of physics, mathematics and chemistry. One such an example, studies of AOP contribute to the interpretation of vibration spectra of the diatomic molecules in chemical physics and in classical physics, which in turn explains the thermal expansion.
Financial Support :
King Khalid University
Time Period : 2017–2018
Grant Number :
Principal Investigator :
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project name : Numerical Simulation of the Heat and Mass Transfer in Membrane Based Enthalpy Exchanger
Summary : Renewable energy opportunities in water desalination constitute a promising new way of producing potable water, better and cleaner than those produced from burnt oil. Desalination is a water-treatment process by thermal processes that separates salts from saline water to produce potable water or water that is low in total dissolved solids. In this context, Membrane desalination is a promising process, especially for situations where low temperature solar, geothermal, waste, or other heat is available. The membrane based enthalpy exchangers which can recover both sensible heat and moisture, are very efficient for heat and moisture recovery in humidification and dehumidification processes especially in sea water desalination systems.
Financial Support :
King Khalid University
Time Period : 2017–2018
Grant Number :
Principal Investigator :
project name : Study of propagation of nonlinear waves in a dusty plasma and its applications
Summary : A theoretical investigation is carried out to study the propagation and the head-on collision of dust-acoustic shock waves in a strongly coupled dusty plasma consisting of negative dust fluid, Maxwellian distributed electrons and ions.
Financial Support :
King Khalid University
Time Period :
Grant Number :
Principal Investigator :
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project name : On Modelling of Nonlinear Solitary Waves Propagation in a Quantum Plasma
Summary : The intrinsic localization of electrostatic wave energies in quantum semiconductor plasmas can be described by solitary pulses. The propagation and the collision properties of these pulses are investigated. In the present study, the fundamental model includes the effects of the quantum term, degenerate pressure of the plasma species, and the electron/hole exchange–correlation on the propagation of the solitary pulses.
Financial Support :
King Khalid University
Time Period :
Grant Number :
Principal Investigator :
- E. F. El-Shamy, Nonlinear Propagation of Positron-Acoustic Periodic Travelling Waves in a Magnetoplasma with Superthermal Electrons and Positrons, Chinese Physics Letters 34, 065201(2017).
- H. G. Abdelwahed, E. K. El-Shewy, A. El-Depsy, and E. F. EL-Shamy, Nonlinear dust ion acoustic periodic travelling waves in a magnetized plasma with two temperature superthermal electrons and stationary charged dust grains, Physics of Plasmas 24, 023703 (2017).
- S. K. El-Labany, E. F. El-Shamy, N. A. El-Bedwehy, and M. Shokry, Nonlinear ion acoustic ring solitons in a multicomponent plasma with superthermal electrons: Propagation and collision, Physics of Plasmas 23, 102116 (2016).
- S. Sabek, F. Tiss, Ridha Chouikh et Amen Allah Guizani, Numerical investigation of membrane based heat exchanger with partially blocked channels Energy and Buildings 133 (2016) 131–140.
- E. F. El-Shamy, R. Chouikh, A. El-Depsy, and N. S. Al-Wadie, Nonlinear propagation of electrostatic travelling waves in degenerate dense magnetoplasmas, Phys. Plasmas 23, 122122 (2016).
- N. Al Sdran and F. Maiz, " Airy function approach and Numerov method to study the anharmonic oscillator potentials V(x) = Ax2α + Bx2", AIP ADVANCES 6, 065323 (2016).
- F. Maiz, R. Chouikh, A. Guizani, " Numerical Method for Hetero-Cavities Natural Frequencies’ Determination", International Review of Mechanical Engineering (I.RE.M.E.), Vol. 10, N. 3 May 2016.
- F. Maiz, " Numerical method to calculate the quantum transmission, resonance and eigenvalue energies: application to a biased multibarrier systems ", Physica B 463 (2015) 93–102.
- S. K. El-Labany, E. F. El-Shamy, W. F. El-Taibany, and N. A. Zedan, Modeling of nonlinear envelope solitons in strongly coupled dusty plasmas: Instability and collision. Chinese Physics B 24, 035201(2015).
- E. F. El-Shamy, Nonlinear ion-acoustic cnoidal waves in a dense relativistic degenerate magnetoplasma, Physical Review E 91, 033105(2015).
- M. M. Selim, A. El-Depsy, and E. F. El-Shamy, Bifurcations of nonlinear ion-acoustic travelling waves in a multicomponent magnetoplasma with superthermal electrons, Astrophysics and Space Science 360, 66 (2015).
- S. Sabek, F. Tiss, R. Chouikh and A. A. Guizani, Heat and mass transfer in partially blocked membrane based heat exchanger, International Renewable Energy Congress IREC march 22-24, 2016.
- E. F. El-Shamy, The International Conference on New Horizons in Basic and Applied Science {From 31 July-3 August 2015}, in Hurghada, Egypt.
- E. F. El-Shamy, The day of the tenth annual scientific research, {from 5-6 May 2014}, King Khalid University, College of Science, Abha, Saudi Arabia.
- E. F. El-Shamy, Second international conference on mathematics &information science, Sohag University {From 10-13 September 2011}, In Sohag, Egypt.
- E. F. El-Shamy, The International fourth environmental Conference, Environment Industry – Development {From 30 March To 4 April 2009}, In New Damietta and Ras El-Bar, Damietta, Egypt.
- E. F. El-Shamy, Third Workshop & Training Program in Low Cost Plasma Technology Applications in Industry, Environment and Medicine [held in Cairo Egypt - Cairo- Nasr City -November 7-12, 2009].
- E. F. El-Shamy, Workshop on the Frontiers of Modern Plasma Physics {14th- 25th July 2008} - [in the Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy].
- Karim Bouchleghem, Ridha Chouikh and Amen Allah Guizani, Satellite data and surface observations during dust and breezes Events, Lambert Academic Publishing 2016.