Mohsen is an academic staff in the Department of Mechanical Engineering at the University of Melbourne. He has 18 years of industry and academic research experience in the broad area of energy which includes numerical and theoretical investigations of turbulent reactive flows with the focus on low-emission energy technologies. Mohsen’s research involves a significant use of high-performance computing to develop predictive tools for designing cleaner gas turbines and reciprocating engines.
See his recent article on alternative fuels:
The aim of this program is to examine the mechanism of sound generation by combusting flows and how it affects the stability of engineering devices, such as industrial burners and gas turbines.
We focus on simulation of Flame-Wall Interaction (FWI) under gas turbine relevant conditions to understand how it affects wall heat flux and pollutant emissions such as carob monoxide (CO).
Flame-Cooling Air Interaction
We study Flame-Cooling Air Interaction (FWI) under gas turbine relevant conditions and its impact on wall heat flux and pollutant emissions such as carob monoxide (CO).
Flames Diluted with Combustion Products
We study premixed flames diluted by combustion products under gas turbine relevant conditions and its impact on pollutant emissions such as carob monoxide (CO).
We aim to understand how hydrogen addition to conventional fuels such as natural gas affects the combustion characteristics and produced emissions.
Natural Gas Direct Injection
We aim to understand how fuel/air mixing inside the cylinder of a direct-injection spark-ignition (DISI) engine affects the combustion characteristics and produced emissions.
End Gas Auto-Ignition
We aim to understand how end-gas auto-ignition in a spark-ignition (SI) engine affects the system dynamics and wall heat flux.
We use gene-expression programming (GEP) to develop advanced combustion models for turbulent premixed flames under different operating conditions.
Combustion is a significant source of noise pollution. Combustion-generated sound also plays a central role in the stability of many engineering devices, such as industrial burners, gas turbines and rockets. The ongoing pursuit of quieter and cleaner combustion in these devices provides a continued need for further refinements in our understanding of combustion generated sound. The rate of change of heat release is commonly considered as a major source of noise in combustion. One mechanism affecting this rate of change, and hence sound generation, is so-called flame annihilation. Animation of the dilatation field (∇.u where u is the velocity) of an acoustically forced laminar premixed flame over one forcing cycle, is shown below. This animation demonstrates that flame annihilation events (detachment of the flame tip from an elongated filament and burning out of the resulting island) are significant sound sources. Note that the white colour represents both the flame and sound waves.
Flame-wall interaction (FWI) and/or Flame-cooling air interaction are observed in various combustion systems such as gas turbines and reciprocating engines. This can be a significant source of emissions such as carbon monoxide (CO). Moreover, the current trend towards downsizing, i.e. increasing the power generated per unit volume of the power system, increases the significance of FWI and FCAI. The contribution of FWI and FCAI to the overall emissions (CO in particular) is not well understood. The figure below shows
Dr Talei is the degree coordinator of the Master of Energy Systems.
The aim of this degree is to equip students with the required skills for making informed decisions about energy issues that incorporate technical, economic, environmental and social considerations. This program will suit graduates of engineering, science, business, finance and economics degrees.