Courses offered from
Dept. of ME, BUET
If you want to master something, teach it - Richard Feynman
ME 261:Numerical AnalysisOffered to Dept of ME,BUET
This theory course is offered to demostrate the elementary tools of numerical methods and their applications. Course inlcludes numerical techniques to solve system of equations, numerical integration, differentiation, ODEs, curve fitting, roots of equations and basics of error analysis.
ME 352:Machine Design SessionalOffered to L-3, T-2 Dept of ME,BUET
This is a tutorial course based on ME 351: Machine Design. In this course students practice comprehensive problems of machine design. It covers problems of failure theory, fatigue failure, fracture mechanics and basics of designing spring, gear, bearing etc.
ME 223:Fluid Mechanics and MachineryOffered to Dept of IPE,BUET
This theory course is designed to give the fundamental elements of Fluid Mechanics and its application to IPE students. Course inlcludes fluid statics, one dimensional flow, pipe flow and losses , rotadynamic and axial flow machines and introductory compressible flow.
ME 422:Fluid Machinery SessionalOffered to L-4, T-1 Dept of ME,BUET
Laboratory menifestation of ME 421: Fluid Machinery theory course. Students perform experiments on Centrifugal Pump, Pumps in series and parallel connections, Submersible Pump, Pelton Wheel, Kaplan Turbine etc.
ME 350:Mechanics of Machinery SessionalOffered to L-3, T-1 Dept of ME,BUET
1.5 credit hours sessional course based on the theory course ME 349: Mechanics of Machinery. Tutorial classes on comprehensive problems of theory of machines are taken and laboratory experiemnts including cam-follower, gyroscope, compound pendulum, whirling speed of shafts are performed.
ME 221:Elements of FLuid Mechanics and MachineryOffered to Dept of MME,BUET
This theory course is mainly designed with a view to providing a basic knowledge of Fluid Mechanics and Machinery to MME students. This inlcludes fluid statics, one dimensional flow, pipe flow and losses , introduction to fluid machinery etc.
ME 326:Fluid Machanics SessionalOffered to L-3, T-2 Dept of ME,BUET
The laboratory course gives the very first practical menifestaion of fluid mechanics to students who are studying ME 323:Fluid Mechanics-2 and already completed ME 321: FLuid Mechanics-1. It includes experiments regarding pipe friction, flow over circular cylinder, flow through C-D nozzle, pipe fittings, minor loss etc.
ME 262:Numerical Analysis SessionalOffered to L-2, T-2 Dept of ME,BUET
An important course giving the students the basic idea of computing and applying the numerical techniques learnt in ME 261: Numerical Analysis via problem solving both in hand and computing platform. Usually MATLAB is chosen for solving problems so that this helps the students in future.
Graduate Research Assistant in
Macro-to-Micro scale Fluids Engineering Lab (MμFEL) of Dept. of ME, BUET
High Speed Flow
High speed flow topics betrays the physics of compressible flow. The primary interests includes analyzing the flow fields and shockwave dynamics in high speed gas flow. Interaction of shockwaves with the boundary layers and effects of turbulence in supersonics flow are of great interests.
The study of boundary layer theory and its effects are exciting as well as difficult to model theoretically. The classic book, "BOUNDARY LAYER THEORY" by Hermann Schlichting exhibits the challenges. The transition from laminar to turbulent boundary layer is a vital phenomena which is yet to understand properly. Solving the mighty Navier-Stokes equation in boundary layer rigion is also a thrilling study.
In fluid dynamics, turbulence or turbulent flow is any pattern of fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to a laminar flow regime, which occurs when a fluid flows in parallel layers, with no disruption between those layers.
To study natural science, proficiency in mathematics is a must. Fundamental and applied fluid mechanics requires strong skills in mathematical techniques like perturbation methods, method of characteristics etc. Analytical Modelling of fluid dynamical problems is an elegant way of solving albeit practical application often demands quicker but approximate solutions, it also needs primary applied mathematics.
Theoretical modelling is actually handling the problem analytically with the help of mathematical tools. This approach is found to be very superior for analyzing the flow field or actually knowing the physics. On the contrary, engineering applications often demands the relation among poerformance parameters or the necessary variables for complex geometry or systems. These type of problems are difficult to model rather experiments and simulations are effective choices. Again it is to be said that to know the real physics or to eshtablish a hypothesis regarding flow behave analytical modelling is very elegant
To know the inner physics of fluid flow it is a very old and effective way to actually making the flow occur in a suitable experimental setup. A wind tunnel with measurement system, shock tubes can enable a researcher doing high quality research. Experiments are performed in wind tunnels in Physical Fluid Dynamics research group of Dept. of ME, BUET
Simulation is used as a virtual experimental platform. With proper validation and reliable computational scheme it is used to handle fluid flow problems in compressible and incompressible flows with various turbulence models. RANS, LES, DES etc. are some simulation techniques incorporated in commercial packages used in PFD
Flow Field in a Supersonic Inlet Isolator
As an udergraduate student I performed my undergraduate thesis on "Flow field characteristics in a supersonic inler isolator". Mainly simulation was done using K-Omega SST turbulence model in Ansys Fluent 14.5. The target of the study was to develop a 2 dimensional bump geometry to reduce Shockwave Boundary Layer Interaction in ramp increasing the isolator performance.
Exploring Nature to ANSWER "WHY??
The vital motivation of research is to answer the question,"WHY?" I am not satisfied just doing or solving a problem rather I intend to know the inner nature of fluid mechanics. Perhaps some engineering application do not even require this but relating the fluid flow behave with their inner physics has always been a great interest of me.
The first and foremost purpose of my research activities is self-satisfaction. I beleive the target of studying a topic is enough to be studying only. Real life problems or direct applications may be addressed as well but it is necessary for an enthusiast to have a tendency to just know. Feeling F = ma is important for a Nowtonian Mechanics expert.
Welfare of Society and Self
As an academician one needs to continue the process of learning and teaching. Motivation of research works also includes being proficient in the area of expertise. This enables an individual to contribute to his country and himself. High quality research not only promotes knowledge and skills but also gets quick promotions.
Renowned Journals in Fluid Mechanics & High Speed Aerodynamics
Annual Review of Fluid Mechanics (Annual Reviews) ||| Experiments in Fluids (Springer)
Aerospace Science and Technology (ELSEVIER) ||| AIAA Journal (AIAA) ||| Shock Waves (Springer)
3. Md. Raihan Ali Khan, Shadman Tahmid, and A.B.M. Toufique Hasan, "Control of shock/boundary-layer interaction in a supersonic inlet isolator using geometric modification", Proceedings of 12th International Conference on Mechanical Engineering (ICME 2017), Dhaka, Bangladesh, 20-22 December, 2017, Paper ID: 153. AIP Conference Proceedings 1980, 040013 (2018)
2. Md. Raihan Ali Khan, Shadman Tahmid, Sazin Ahmed and M A R Sarkar "Fabrication and Performance Study of a Radio Controlled Amphibious Vehicle with Dual Propulsion System", International Conference on Mechanical, Industrial and Energy Engineering (2016), Khulna, Bangladesh 26-27 December, 2016.
1. Nandita Chakrabarty Jhumur, Sourav Saha, Mir Jalal Ahmad, Md. Raihan Ali Khan, Shadman Tahmid "Unsteady Pure Mixed Convection inside Square Ventilated Cavity Containing Rotating Heated Cylinder", International Conference on Mechanical, Industrial and Energy Engineering (2016), Khulna, Bangladesh 26-27 December, 2016.
M.Sc. in Mechanical EngineeringOctober 2017 - Present
Department of Mechanical Engineering
Bangladesh University of Engineering and Technology (BUET)Thesis Supervisor: Professor Dr. A B M Toufique Hasan Thesis Topic: Shock Wave Interaction on Flexible Surfaces Courses Completed: Mechanics of Viscous Fluid, High Speed Aerodynamics, Mechanics of Inviscid Incompressible FLuid, Finite Element Methods
B.Sc. in Mechanical EngineeringFebruary 2013 - September 2017
Department of Mechanical EngineeringProfessor Dr. A B M Toufique Hasan Thesis Title: Flow Field Characteristics in a Supersonic Inlet Isolator....... Deans List and University Merit Scholarship in all terms and levels
Higher Secondary Certificate (H.S.C.)2010-2012
Dhaka College is one of the most ancient college in Indian Subcontinent. Every year this college prepares highly competitative students who usually get admission in various renowned universities and medical colleges both in the country and abroad.
Secondary School Certificate (S.S.C.)2008-2010
Government Laboratory High School is one of the best boys high schools in Dhaka city. Being influenced by "ALO ARO ALO (Light and more Light)", the motto of school, teachers take great and intesive care of students for their upcoming future. Every year students secure outstanding grades in SSC examination.
December 2017 - Present
Department of Mechanical Engineering
Joining one's own department as a teacher is a great oppurtunity to serve the nation as well as getting involved with the academic program of the best engineering university in the country. Being in touch with highly qualified and experienced teachers and experts increases one's knowledge, administrative experience and leadership. Every term going in front of the young undergrads is really exciting.
In the final year of graduation I had the chance to attend one month training in Atomic Energy Research Eshtablishment (AERE), Savar, Dhaka, Bangladesh Atomic Energy Commission under the course ME 370: Industrial Training. It was a huge experience working in Center for Research Reactor (CRR) with atomic scientists and reactor engineers of the country.
I like to read and collect books, specially rare books of various interests
Travelling is also a hobby of mine. A good friend a bag and a bus, I think that's enough.