Md. Tusher Mollah

Md. Tusher Mollah
Lecturer, Department of Mathematics
European University of Bangladesh, Dhaka, Bangladesh
(B.Sc. (Honors) in Mathematics, M.Sc. in Applied Mathematics,
Bangabandhu Sheikh Mujibur Rahman Science and Technology University,
Gopalganj-8100, Bangladesh)
​Mobile: +8801775309692
Email: [email protected]
Web: https://www.eub.edu.bd/tusher-mollah/
Webmail: [email protected]

Education

M.Sc. in Applied Mathematics from Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj-8100, Bangladesh in 2018.
B.Sc. in Mathematics, from Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj-8100, Bangladesh in 2016.
Higher Secondary Certificate, from Government Haraganga College, Munshiganj, Bangladesh in 2012.
Secondary School Certificate, from K.K. Government Institution, Munshiganj, Bangladesh in 2010.

Experiences

Lecturer, Department of Mathematics at European University of Bangladesh, Gabtoli, Dhaka, Bangladesh, from January 2019 to onwards.
Adjunct Lecturer in Mathematics at Central University of Science and Technology, Mirpur-14, Dhaka, Bangladesh, from November 2018 to January 2019.
Ambassador at BSMRSTU, ReaserchLeap Publishing, Zagreb, Croatia, from June 2018 to present.
Research Assistant at Khulna University, Khulna-9208, Bangladesh; under Prof. Dr. Md. Mahmud Alam, Mathematics Discipline, Khulna University, Khulna-9208, Bangladesh, from June 2018 to January 2019.
Research Fellow at National Science and Technology (NST) under the Ministry of Science and Technology, Government of People’s Republic of Bangladesh, from July 2017 to June 2018

Research Interest

  1. Fluid Mechanics and Heat Transfer
  2. Computational Fluid Dynamics (CDF)
  3. Numerical Simulation

 

Completed Research Project

  1. The project entitled “Unsteady MHD Bingham Fluid Flow through a Parallel Plate with Ion slip and Hall Current” is supported and funded by National Science and Technology under the Ministry of Science and Technology, Government of the People’s Republic of Bangladesh.

 

Publications

  1. Md. Tusher Mollah, Muhammad Minarul Islam and Md. Mahmud Alam, “Hall and Ion-slip Effects on Unsteady MHD Bingham Fluid Flow with Suction”, AMSE JOURNALS-AMSE IIETA publication-2018-Series: Modelling B, Vol. 87, Issue 4, P 221-229. https://doi.org/10.18280/mmc_b.870402.

Abstract: Hall and Ion-slip effects on unsteady MHD Bingham fluid flow through non-conducting parallel plates with uniform suction has been studied numerically. The fluid motion is subjected to uniform suction and external uniform magnetic field is applied perpendicular to the plates. The lower plate is stationary while upper plate moves with a constant velocity. Both plates are kept at different but constant temperatures. The governing non-linear coupled partial differential equations have been transformed into partial differential equations by usual transformations. The obtained equations have been solved numerically by the explicit finite difference method under the stability and convergence analysis. The effects of some important parameters on shear stress, Nusselt number as well as Primary Velocity, Secondary Velocity and Temperature distributions have been discussed graphically by MATLAB R2015a and Studio Developer FORTRAN 6.6a both. Finally, qualitative and quantitative comparisons of the present study with published results have been discussed.

  1. Muhammad Minarul Islam, Md. Tusher Mollah, Mohammad Sanjeed Hasan and Md. Mahmud Alam (2017), “Numerical Solution of Unsteady Viscous Compressible Fluid Flow along a Porous Plate with Induced Magnetic Field”, AMSE JOURNALS-AMSE IIETA publication-2017-Series: Modelling B, Vol. 86, Issue 4, P 850-863. https://doi.org/10.18280/mmc_b.860403.

Abstract:  The unsteady viscous compressible boundary layer fluid flow past a semi-infinite vertical porous plate surrounded in a porous medium with induced magnetic field has been studied numerically. The governing non-linear coupled partial differential equations have been transformed by using usual transformations. The obtained non-linear dimensionless coupled partial differential equations have been solved numerically. The explicit finite difference method is used as solution technique and MATLAB software is used as a secondary tool. The obtained results for the density, velocity, induced magnetic field as well as temperature distributions are shown graphically.

  1. Md. Tusher Mollah, Muhammad Minarul Islam and Md. Mahmud Alam (2018), “Couette Flow of Bingham Fluid with Ion-Slip and Hall Current”, LAMBERT Academic Publishing (LAP), ISBN:978-613-9-92592-6.

Abstract: The unsteady MHD Bingham fluid flow through two non-conducting parallel plates with Ion-slip and Hall current has been studied numerically. The fluid motion is uniform at the upper plate and the uniform magnetic field is applied perpendicular to the plate. The lower plate is stationary while upper plate moves with a constant velocity. Both plates are kept at different but constant temperatures. The non-linear partial differential coupled equations, governing the problem under consideration, have been transformed by using usual transformations into a system of partial differential equations. The stability and convergence criteria have been analyzed. The obtained dimensionless governing equations have been solved numerically by applying the explicit finite difference method by MATLAB and FORTRAN both. The impact of various interesting parameters on the flow pattern and on the shear stress and Nusselt number have been analyzed and discussed graphically in details by using MATLAB and FORTRAN. In case of uniform suction the Hall and ion-slip effects on unsteady MHD Bingham fluid flow through two non-conducting parallel plates have been studied numerically. The fluid motion is subjected to a uniform suction and an external uniform magnetic field is applied perpendicular to the plates. Finally, the important findings are illustrated graphically.

  1. Md. Tusher Mollah, Muhammad Minarul Islam (2018), “Numerical Study for Compressible Fluid with Induced Magnetic Field”, LAMBERT Academic Publishing (LAP), ISBN:978-613-9-93063-0.

Abstract: In order to the great importance of thermal instability in nature, industrial applications, chemical processes as well as in geophysical and astrophysical engineering, The numerical solution for unsteady heat transfer of viscous compressible boundary layer fluid flow along a porous plate with induced magnetic field has been studied when the system rotation being zero. The governing non-linear coupled partial differential equations have been transformed by using usual transformations. The obtained non-linear dimensionless coupled partial differential equations have been solved numerically. The explicit finite difference method is used as solution technique and MATLAB R2015 software is used for simulation. The obtained results for the density, velocity, induced magnetic field as well as temperature distributions are shown graphically.

  1. Md. Tusher Mollah, Muhammad Minarul Islam, Sheela Khatun, Md. Mahmud Alam and Giulio Lorenzini, “MHD generalized Couette flow and heat transfer on Bingham fluid through porous parallel plates with Ion-slip and Hall current”, Defect and Diffusion Forum. (In Press)

Abstract: The unsteady MHD generalized Couette flow and heat transfer on Bingham fluid through porous parallel plates with Ion-slip and Hall current has been studied numerically. The non-linear partial differential coupled equations, governing the problem under consideration, have been transformed by using usual transformations into a system of partial differential equations. The obtained dimensionless governing equations have been solved numerically by applying the explicit finite difference method with the help of MATLAB R2015 tool. It is observed that the secondary velocity reaches the steady-state more gradually than the primary velocity and temperature profiles, and the steady-state solution is obtained at dimensionless time, Tau= 4.00. The appropriate mesh space is obtained at m=40 and n=40. The impact of various interesting parameters on the primary velocity, secondary velocity and temperature profiles, also on the local Nusselt number and shear stress have been analyzed and discussed through the graph in details. Finally, a qualitative and quantitative comparison with the published results has been discussed.

  1. Md. Tusher Mollah, Muhammad Minarul Islam, Mohammad Ferdows and Md. Mahmud Alam, “Bingham Fluid Flow through Oscillatory Porous Plate with Ion-Slip and Hall Current”, AIP Conference Proceedings, BSME-ICTE2018, (In press).

Abstract: The numerical approach has been performed to study the Bingham fluid flow through an oscillatory porous plate with Ion-Slip and Hall current. Initially, at time; t=0 both the fluid and the upper plate are at rest. At time; t>=0 the upper plate begins to oscillate in its own plane while the lower plate is stationary. The lower plate temperature is constant while the upper plate temperature has oscillated. A uniform magnetic field is applied perpendicular to the plates. To obtain the dimensionless equations from the governing non-linear partial differential equations, the usual transformations have been used. The explicit finite difference technique has been applied to solve the obtained dimensionless equations. The MATLAB R2015a has been used for numerical simulation. For the accuracy of the numerical technique, the stability and convergence criteria have been discussed and the system has found to be converged for P_{r}>=0.08, H_{a}<=20, K_{0}<=8 (k~=2) and R_{e}>=-0.011 with Beta_{r}=0.10, E_{c}=0.10, delta(Y)=0.05 and delta(Tau)=0.001 . The steady-state solution has achieved at the dimensionless time. At the steady-state time, the effect of several parameters on the flow patterns, local shear stress and the Nusselt number have been shown graphically.

  1. Sheela Khatun, Muhammad Minarul Islam, Md. Tusher Mollah, and Md. Mahmud Alam, “Fluid Flow along the Riga Plate with the Influence of Magnetic Force in a Rotating System”, AIP Conference Proceedings, BSME-ICTE2018, (In press).

Abstract: The fluid flow along the Riga plate with the influence of magnetic force in a rotating system has been investigated numerically. The governing equations have been derived from Navier-Stokes’ equations. Applying the boundary layer approximation, the appropriate boundary layer equations have been obtained. By using a usual transformation, the obtained governing equations have been transformed into a coupled dimensionless non-linear partial differential equation. The obtained dimensionless equations have been solved numerically by an explicit finite difference scheme. The simulated results have been obtained by using MATLAB R2015a. Also, the stability and convergence criteria have been analyzed. The effect of several parameters on the primary velocity, secondary velocity, temperature distributions as well as the local shear stress and the Nusselt number have been shown graphically.

  1. Sonia Akter, Mohammad Rafiqul Islam, Md. Tusher Mollah, and Md. Mahmud Alam, “Hall Effects on Casson Fluid Flow along a Vertical Plate” AIP Conference Proceedings, BSME-ICTE2018, (In press).

Abstract: The Hall effects on Casson fluid flow along a vertical plate has been investigated numerically. The governing equations have been derived from Navier-Stokes’ equation and boundary layer approximation has been employed. By using usual transformations, the obtained non-linear coupled partial differential equations have been transformed into dimensionless governing equations. These equations have been solved by applying the explicit finite difference method. The MATLAB R2015a tool has been used for numerical simulation. The stability and convergence criteria have been analyzed. The effect of some important parameters on the primary velocity, secondary velocity, temperature and concentration distributions as well as local shear stress, Nusselt number and Sherwood number have been shown graphically.

Conference Presentation

  1. Md. Tusher Mollah, Muhammad Minarul Islam, Mohammad Ferdows and Md. Mahmud Alam, “Bingham Fluid Flow through Oscillatory Porous Plate with Ion-Slip and Hall Current”, 8th BSME International Conference on Thermal Engineering 2018, BUET, Dhaka, Bangladesh.

Award:

 6th Undergraduate National Mathematics Olympiad in Khulna Division, Khulna University on November 2014. Awarded for superior performance.

Research Fellowship:

National Science and Technology (NST) Fellowship (2017-2018), Ministry of Science and Technology, Government of People’s Republic of Bangladesh.