- Wind Energy Research and Development
- Wind and Air Flow Studies
- Icing and De-icing Technologies
- Solar Thermal and Photovoltaic Systems
- Nanofluid Flow and Heat Transfer
- Phase Change Materials Research
- Aerospace Engineering and Energy Systems
- Heat Transfer Mechanisms
- Adsorption and Cooling Systems
- Building Energy and Comfort Optimization
- Topology Optimization in Engineering
- Solar Radiation and Photovoltaics
- Heat Transfer and Optimization
- Fluid Dynamics and Vibration Analysis
- Photovoltaic System Optimization Techniques
- Mechanical and Thermal Properties Analysis
- Fluid Dynamics and Heat Transfer
- Cavitation Phenomena in Pumps
- Electrohydrodynamics and Fluid Dynamics
- Heat and Mass Transfer in Porous Media
- Spacecraft and Cryogenic Technologies
- Aerodynamics and Acoustics in Jet Flows
- Computational Fluid Dynamics and Aerodynamics
- Freezing and Crystallization Processes
- Turbomachinery Performance and Optimization
Materials and Energy Research Center
2017-2023
Weatherford College
2022
K.N.Toosi University of Technology
2009-2021
Purpose Aiming at finding the velocity distribution profile and other flow characteristic parameters such as Poiseuille ( Po ) number, this study aims to focus on three-dimensional forced convective inside rectangular ducts filled with porous media commonly used in air-based solar thermal collectors enhance performance. The most general model for fluid (i.e. non-linear Darcy–Brinkman–Forchheimer partial differential equation subjected slip no-slip boundary conditions) is considered....
Since the air density reduces as altitude increases, operation of small wind turbines (SWTs), which usually have no pitch adjustment, remains challenging at high altitudes due largely to reduction starting aerodynamic torque. By reducing moment inertia through use hollow blades, this study aims speed up while maintaining structural integrity blades and output power. A horizontal axis turbine with was designed for two sites in Iran 500 m 3000 m. The design variables are distributions chord,...
This study deals with the effect of altitude on performance a Small Wind Turbine (SWT) blade. Four potential regions wind energy altitudes up to 3,000 m were selected and three-bladed, 2 diameter small HAWT was designed for those regions. Starting time combined output power in an objective function improve turbine at low speeds. The goals function, starting performance, addressed by geometry optimization blade which carried out genetic algorithm. modified Blade-Element Momentum (BEM) theory...
The study deals with the design and optimization of external internal geometry micro-wind turbines blades. A specified objective function which consists power coefficient starting time was defined genetic algorithm technique in conjunction blade-element momentum theory adopted to find blades including distributions chord, twist angle also shell thickness. Moreover, allowable stress considered as a constraint function. Results show that reasonable compromise is achievable such reduces...
The use of nanofluids as coolant fluid in the microchannel heat sink (MCHS) is an effective technique for improving thermal performance electronic devices. A comparative study performed with help a multi-objective genetic algorithm (MOGA) to find optimal geometric variables MCHS and choose appropriate nanofluid. For that purpose, four practical nanofluids, including Al2O3-water, Cu-water, SiO2-water, carbon nanotube (CNT)-water, are thoroughly investigated. Simultaneously minimization total...
In this study, to reduce the drag force, nose shape of Launch Vehicle with determined flight conditions, is optimized. Two optimization methods are considered: binary genetic algorithm and response surface method. Since value coefficient proportional dynamic pressure, objective function based on minimization in conditions which corresponding maximum pressure. order evaluation function, aerodynamic prediction engineering code used. The results directly entered common parameters like...
Since the air density reduces as altitude increases, operation of Small Wind Turbines (SWTs) which usually have no pitch mechanism, remains a challengeable task at high altitudes due largely to reduction starting aerodynamic torque. By reducing blades moment inertia through use hollow blades, study aims mitigate that issue and speed up starting. A three-bladed, 2 m diameter small horizontal axis wind turbine with cross-section was designed for operating two sites 500 3,000 m. The design...