Mohammed Gowhar I

Project Officer at Indian Institute of Technology Gandhinagar

• India - Ahmedabad
• September 2013 to November 2014

Project Title: High Fidelity Computational Design of Engineered Systems on High Performance Computing Platforms
Type of Project: Sponsored Project
Sponsoring Agency:Department of Electronics & Information Technology (DIT)

Climb Manoeuvring of 6-Seated Propeller-Powered Aircraft:
I designed a 6-seated propeller-powered aircraft with its control surfaces such as elevator, rudder, aileron and flap using CATIA CAD modeller. The design was taken from the Aircraft Performance and Design text book by John D Anderson. The models were imported into the Computational Fluid Dynamics commercial tool Star-CCM+ to analyse the stability of the aircraft. The Polyhedral Mesh with Prism Layers with sliding and overset mesh techniques was utilized. The performance curves were taken out from the computation to perform different manoeuvrings.
The aircraft was set for climb manoeuvring, but due to technical difficulty, the elevator was replaced with a flat plate with hinge point at its centre. The aircraft performed climb manoeuvring successfully with some assumptions. The flight trajectory of the aircraft considering the variation of aerodynamic characteristics during the flight manoeuvre was computed as part of the overall computed solution by coupling the aerodynamics and flight dynamics.

Study of Roll Stability and Manoeuvring of Unmanned Aerial Vehicle (UAV):
I was a team member of two, who modelled a propeller-powered Unmanned Aerial Vehicle (UAV) to study the aerodynamics and flight mechanics of dynamic manoeuvre with propeller power. Due to the high RPM of the propeller and relatively low mass of the UAV, the UAV was unstable during perch manoeuvring. For my part, I made a comparative study of various configurations in terms of swivel point and rolling rate in order to better comprehend the phenomenon.

Parametric Study on Rope Washer Pump:
Moreover, I worked on Rope Washer Pump and did parametric study to determine the optimum outlet diameter for this pump. The tool used for modelling this was Autodesk Inventor CAD modeller and the task was performed using Star-CCM+ CFD commercial code.

Code on Lid Driven by Cavity using Lattice Boltzmann Method:
Studied Lattice Boltzmann Method (LBM) and developed my own C++ code to solve the standard fluid flow benchmark problem of Lid Driven Cavity, post processing the results using Tecplot and Paraview.

Study of Dam Break Problem using Particle Method
I also completed a study on Dam Break Problem using Mesh Free Particle Simulator (MPARS). MPARS is an open source code using particle method. To check this particle method’s accuracy, two small square obstacles were introduced with a small gap between them. It was found that it is possible to successfully capture the particles in the small gap.

Lattice Boltzmann Method: Flow over Staggered Bundles of Tubes in a Channel:
Flow over staggered bundles of tubes in a channel was solved using LBM. This code was fully written in C++ by me and I utilized the library of an open source code Palabos. The behaviour of the flow at different Reynolds Numbers was studied. It was also solved in commercial code Star-CCM+ using Unstructured Polyhedral Mesh with Prism Layers.