RESEACH WORKS
RESEACH WORKS
Research Interest
Research Interest Field:
Computational fluid dynamics (CFD)
Material Science
Aerodynamics
Thermodynamics
Fluid Mechanics
Reseach Projects
1.Paper Title: A Comprehensive Study of Ballistic Impact on Al Alloys using Finite Element Approximation and Machine Learning with Uncertainty Quantification
Status: Research is going on!
Preferable Software: Machine Learning, MATLAB, Solidworks & Ansys
2.Paper Title: Comparison of Aerodynamic Characteristics of NACA 0012 and NACA 2412 Airfoil.
Status: Published on International Journal for Research in Applied Science and Engineering Technology (IJRASET) international peer-reviewed, open-access multidisciplinary online journal, ISSN: 2321-9653, Impact Factor: 7.429
Abstract: A comparison between NACA 0012 and NACA 2412 has been made by comparing the lift co- efficient, drag coefficient, pressure contour and velocity contour at various angles of attack. The process has been done taking steady state flow around NACA-0012 and NACA-2412 airfoil using 1m chord length and a velocity of 88.65m/s. The main aim is to understand the aerodynamic characteristics of both the airfoils at different angles of attack and draw a conclusion on which performs better under the same conditions. Modelling and numerical analysis has been carried out by using commercially available CFD software, which is a convenient method of analysis since computational methods are more preferred to experimental methods due to low expenses involved. The numerical results demonstrated are compatible with those of the theory. This confirms the validity of using Computational Fluid Dynamics (CFD) as a reliable alternative to experimental procedures
3.Paper Title: Experimental Investigation of the Effect of swirl on the flow Field of free circular Jet.
Status: Selected for publishing in the Scopus index Journal.
Conference: 2nd International Conference on Mechanical Engineering & Applied Science (ICMEAS-2022)S Organised by Faculty of Mechanical Engineering, MIST
Abstract: In the present investigation mean flow parameters of 60mm diameter circular swirling jet are measured with 3- hole wedge-shaped yaw meter. In this experiment, two nozzles are used and these are for free jet, for 5 degree swirling jet. All the nozzles have the same profile and the same exit diameter and they are made by 3-D printing using FDM material. Experiment is carried out with Reynolds number 8.4e4 based on nozzle exit diameter and centerline exit velocity. In this analysis, magnitude of mean axial velocity are measured and the direction of the mean velocity & its profiles are investigated. Due to the presence of swirling the saddle shape behavior of the free jet at its exit is not found. The swirl generates a centrifugal force on the main flow field which causes the fluid to rotate in Anti clock wise & disperse outward and the jet is decayed and diffuses much earlier than the free jet. The peripheral velocities are found to deflect the flow in the outward direction.
4. Paper Title: Numerical Analysis of Magnus effect for Laminar Flow over a Cylinder
Abstract: Computational Analysis Of Fluid flow over a cylinder has made by the pressureprofile and velocity profile at a fixed Velocity. The process has been done bytaking laminar flow through the pipe using 600mm length, width 300mm, andvelocity 46m/s. The main purpose of understanding the structure of the Flowdistribution due to Magnus effect over a cylinder and their interactions is byusing the SIMPLE method & concluding the parameters such as: velocity,pressure which depend heavily on the position and shape of the cylinder thatflows go over. Modeling and numerical analysis have been carried out by usingcommercially available CFD software, which is a convenient method of analysissince computational methods are more preferred to experimental methods dueto the low expenses. The flow mechanisms of these phenomena are analyzed,which can be a basis for predicting the structure of laminar flows in real-world operations.
5. Paper Title: Experimental Analysis of Swirl Influence on Mean Flow Characteristics in Free Circular Jets
Abstract: In this study, a three-hole wedge-shaped yaw meter is used to measure the mean flow characteristics of a circular whirling jet with a diameter of 60 mm. Three nozzles—one for free jet and one for whirling jets at five and ten degrees—are utilized in this experiment. The nozzles are all 3-D printed from FDM material and have the same profile and exit diameter. Reynolds numbers 8.4e4 and 1.27e5 are used in the experiment, which is based on centerline exit velocity and nozzle exit diameter. The direction of the mean velocity and its profiles are examined in this study, together with the amplitude of the mean axial velocity. The free jet's saddle-shaped behavior at its departure is absent because to whirling. The fluid rotates anticlockwise and disperses outward due to the centrifugal force produced by the swirl on the main flow field. The jet decays and diffuses considerably sooner than the free jet. It is discovered that the flow is deflected outward by the periphery velocities.
ARTICLE
Title : Dream of space Travel
Space tourism is human space travel for recreational purposes. There are several different types of space tourism, including orbital, suborbital and
lunar space tourism. To date, orbital space tourism has been performed only by the Russian Space Agency.
Full Article: Link
Undergradute Thesis Project
Thesis Title : EXPERIMENTAL STUDY OF MEAN FLOW CHARACTERISTICS OF SWIRLING JETS
Thesis Supervisor :Dr. M. A. Taher Ali ,Professor of Aeronautical Engineering Department MIST, Dhaka