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Dr Ghazi Droubi


Data reduction strategies. (2021)
Book Chapter
BHOWMIK, B., QUQA, S., SAUSE, M.G.R., PAKRASHI, V. and DROUBI, M.G. 2021. Data reduction strategies. In Sause, M.G.R. and Jasiūnienė, E. (eds.) Structural health monitoring damage detection systems for aerospace. Springer aerospace technology. Cham: Springer [online], chapter 9, pages 243-272. Available from: https://doi.org/10.1007/978-3-030-72192-3_9

Based on the variety of methods available for gathering data for the aircraft health status, the challenge is to reduce the overall amount of data in a trackable and safe manner to ensure that the remaining data are characteristic of the current airc... Read More about Data reduction strategies..

Monitoring tasks in aerospace. (2021)
Book Chapter
PANT, S., SHARIF KHODAEI, Z. and DROUBI, M.G. 2021. Monitoring tasks in aerospace. In Sause, M.G.R. and Jasiūnienė, E. (eds.) Structural health monitoring damage detection systems for aerospace. Springer aerospace technology. Cham: Springer [online], chapter 2, pages 5-14. Available from: https://doi.org/10.1007/978-3-030-72192-3_2

Approximately up to one-fifth of the direct operating cost of a commercial civilian fixed-wing aircraft is projected to be due to inspection and maintenance alone. Managing aircraft health with minimal human intervention and technologies that can per... Read More about Monitoring tasks in aerospace..

Computational fluid dynamics modelling of multiphase flows in double elbow geometries. (2021)
Journal Article
OGUNSESAN, O.A., HOSSAIN, M. and DROUBI, M.G. [2021]. Computational fluid dynamics modelling of multiphase flows in double elbow geometries. Proceedings of the Institution of Mechanical Engineers, Part E: journal of process mechanical engineering [online], Online First. Available from: https://doi.org/10.1177/09544089211021744

This study investigates the effects of elbow on the transition and development of multiphase flow using computational fluid dynamics modelling techniques. The Eulerian - Multifluid VOF model coupled with an Interfacial Area Transport Equation has bee... Read More about Computational fluid dynamics modelling of multiphase flows in double elbow geometries..

Uncertainty reduction in reservoir parameters prediction from multiscale data using machine learning in deep offshore reservoirs. (2020)
Thesis
ARIGBE, O.D. 2020. Uncertainty reduction in reservoir parameters prediction from multiscale data using machine learning in deep offshore reservoirs. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Developing a complete characterization of reservoir properties involved in subsurface multiphase flow is a very challenging task. In most cases, these properties - such as porosity, water saturation, permeability (and their variants), pressure, wetta... Read More about Uncertainty reduction in reservoir parameters prediction from multiscale data using machine learning in deep offshore reservoirs..

Numerical fluid flow modelling in multiple fractured porous reservoirs. (2020)
Journal Article
SURI, Y., ISLAM, S.Z., STEPHEN, K., DONALD, C., THOMPSON, M., DROUBI, M.G. and HOSSAIN, M. 2020. Numerical fluid flow modelling in multiple fractured porous reservoirs. Fluid dynamics and materials processing [online], 16(2), pages 245-266. Available from: https://doi.org/10.32604/fdmp.2020.06505

This paper compares the fluid flow phenomena occurring within a fractured reservoir for three different fracture models using computational fluid dynamics. The effect of the fracture-matrix interface condition is studied on the pressure and velocity... Read More about Numerical fluid flow modelling in multiple fractured porous reservoirs..

CFD modelling of flow-induced vibration under multiphase flow regimes. (2020)
Thesis
ASIEGBU, N.M. 2020. CFD modelling of flow-induced vibration under multiphase flow regimes. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Internal multiphase flow-induced vibration (MFIV) in pipe bends poses serious problems in oil and gas, nuclear and chemical flow systems. The problems include: high amplitude displacement of the pipe structure due to resonance; fatigue failure due to... Read More about CFD modelling of flow-induced vibration under multiphase flow regimes..

CFD modelling of pipe erosion under multiphase flow regimes. (2020)
Thesis
OGUNSESAN, O.A. 2020. CFD modelling of pipe erosion under multiphase flow regimes. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Pipe erosion due to sand transport can have an adverse effect on the production efficiency of pipe-lines and other related flow systems. Proper knowledge of the flow characteristics, particle behaviour and geometric effects is very important in the a... Read More about CFD modelling of pipe erosion under multiphase flow regimes..

Investigation of slug-churn flow induced transient excitation forces at pipe bend. (2019)
Journal Article
HOSSAIN, M., CHINENYE-KANU, N.M., DROUBI, G.M. and ISLAM, S.Z. 2019. Investigation of slug-churn flow induced transient excitation forces at pipe bend. Journal of fluids and structures [online], 91, article ID 102733. Available from: https://doi.org/10.1016/j.jfluidstructs.2019.102733

Numerical simulations of two-phase flow induced fluctuating forces at a pipe bend have been carried out to study the characteristics of multiphase flow induced vibration (FIV). The multiphase flow patterns and turbulence were modelled using the volum... Read More about Investigation of slug-churn flow induced transient excitation forces at pipe bend..

Effect of oleic acid coating of iron oxide nanoparticles on properties of magnetic polyamide-6 nanocomposite. (2019)
Journal Article
GUPTA, R., PANCHOLI, K., DE SA, R., MURRAY, D., HUO, D., DROUBI, G., WHITE, M. and NJUGUNA, J. 2019. Effect of oleic acid coating of iron oxide nanoparticles on properties of magnetic polyamide-6 nanocomposite. JOM [online], 71(9), pages 3119-3128. Available from: https://doi.org/10.1007/s11837-019-03622-5

This work reports the development and testing of a magnetic polymer (Polyamide 6, PA6) nanocomposite capable of melting when exposed to an external magnetic field. Addition of high concentrations of iron oxide nanoparticles (NPs) can induce quick mel... Read More about Effect of oleic acid coating of iron oxide nanoparticles on properties of magnetic polyamide-6 nanocomposite..

Indentation based strength analysis of adhesively bonded leading-edge composite joints in wind turbine blades. (2019)
Journal Article
DROUBI, M.G., FOSBROOKE, C., MCCONNACHIE, J. and FAISAL, N.H. 2019. Indentation based strength analysis of adhesively bonded leading-edge composite joints in wind turbine blades. SN applied sciences [online], 1(7), article ID 691. Available from: https://doi.org/10.1007/s42452-019-0735-6

Wind turbine is a source of non-polluting renewable energy. Whether a wind turbine is viable depends entirely on the structural integrity of turbine blade. To assess the structural integrity of wind turbine blades it is necessary to investigate the l... Read More about Indentation based strength analysis of adhesively bonded leading-edge composite joints in wind turbine blades..