Atomizer design plays a crucial role in determining the performance of gas turbine combustor. the main purpose of an atomizer is to break the bulk liquid fuel into a bunch of small droplets (or spray) as soon as it leaves the atomizer exit. poor atomization of fuel leads to incomplete combustion and harmful exhaust emissions. despite of several improvements in combustors, the proportion of pollution contributed by gas turbine combustors is outrageous because of the rapid growth in aviation industries. in order to run the combustor efficiently with least harmful emissions, an atomizer should be able to produce spray droplets of optimal size (not too small or not too big) and distribute these spray droplets in all the direction with minimum consumption of power. different kinds of atomizers like pressure swirl atomizer, rotary atomizer, effervescent atomizer, etc. can be used to serve these purposes. though, the use of these conventional atomizers may lead to the following shortcomings: 1) very poor combustor performance at low inlet fuel flow rates (e.g. when the combustor is running at idle conditions). 2) inability to have proper control over the generation of fuel drop sizes. 3) inflexibility in operation. a new atomizer which is named as turbo swirl atomizer (tsa) has been designed to overcome these problems. utilization of this atomizer in the gas turbine can improve performance at low fuel flow rates, enhance the efficiency of the combustor and reduce the cost of operation. apart from gas turbine combustor, this atomizer can be effectively used in other applications like spray painting, agricultural process, spray drying and cooling, etc.