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CFD modelling and prototype testing of a vertical axis wind turbines in planetary cluster formation. (2021)
Journal Article
DURKACZ, J., ISLAM, S., CHAN, R., FONG, E., GILLIES, H., KARNIK, A. and MULLAN, T. 2021. CFD modelling and prototype testing of a vertical axis wind turbines in planetary cluster formation. Energy reports [online], 7(Supplement 3): 6th International conference on advances on clean energy research 2021 (ICACER 2021), 15-17 April 2021, [virtual conference], pages 119-126. Available from: https://doi.org/10.1016/j.egyr.2021.06.019

This study aims to improve the applicability of Vertical Axis Wind Turbines (VAWTs) by investigating their feasibility in a novel planetary cluster configuration by observing its effect on efficiency and overall power density. Computational Fluid Dyn... Read More about CFD modelling and prototype testing of a vertical axis wind turbines in planetary cluster formation..

Numerical study of pipeline leak detection for gas-liquid stratified flow. (2021)
Journal Article
ADEGBOYE, M.A., KARNIK, A. and FUNG, W.-K. 2021. Numerical study of pipeline leak detection for gas-liquid stratified flow. Journal of natural gas science and engineering [online], 94, article 104054. Available from: https://doi.org/10.1016/j.jngse.2021.104054

Multiphase flows are of paramount importance in the oil and gas industry, considering that most petroleum industries produce and transport oil and gas simultaneously. However, systematic research on pipeline leakage conveying more than one phase at a... Read More about Numerical study of pipeline leak detection for gas-liquid stratified flow..

Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry. (2020)
Thesis
ADEWOYE, A.J. 2020. Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1357822

Hydrocyclone is used to separate particles from produced water. It can be used in different industries, including oil and gas, water treatment and pharmaceutical (among others). The hydrocyclone can effectively separate particles larger than 10μm, bu... Read More about Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry..

Recent advances in pipeline monitoring and oil leakage detection technologies: principles and approaches. (2019)
Journal Article
ADEGBOYE, M.A., FUNG, W.-K. and KARNIK, A. 2019. Recent advances in pipeline monitoring and oil leakage detection technologies: principles and approaches. Sensors [online], 19(11), article ID 2548. Available from: https://doi.org/10.3390/s19112548

Pipelines are widely used for the transportation of hydrocarbon fluids over millions of miles all over the world. The structures of the pipelines are designed to withstand several environmental loading conditions to ensure safe and reliable distribut... Read More about Recent advances in pipeline monitoring and oil leakage detection technologies: principles and approaches..

An Eulerian–Eulerian formulation for erosion modelling: an alternate approach. (2018)
Presentation / Conference
TANDON, M.P., MOHAN, S.J., KARNIK, A.U. and GADA, V.H. 2018. An Eulerian–Eulerian formulation for erosion modelling: an alternate approach. Presented at the 7th International and 45th National fluid mechanics and fluid power conference (FMFP 2018), 10-12 December 2018, Mumbai, India.

Sand is commonly produced besides petroleum fluids and it presents a major erosional hazard leading to pipe failures. Particle erosion is a complex process in which material is removed due to the repeated particle impacts. Conventionally, a CFD flow... Read More about An Eulerian–Eulerian formulation for erosion modelling: an alternate approach..

Simulation of rectangular fluidised bed with Geldart D particles. (2014)
Conference Proceeding
TANDON, M.P. and KARNIK, A.U. 2014. Simulation of rectangular fluidised bed with Geldart D particles. In Proceedings of the 10th International computational fluid dynamics in the oil and gas, metallurgical and process industries conference (CFD 2014), 17-19 June 2014, Trondheim, Norway. Trondheim: SINFEF [online], pages 509-516. Available from: https://www.sintef.no/globalassets/project/cdf2014/docs/official_proceedings_cfd2014-redusert-filstr.pdf

In this study, simulations are carried out using the Euler-Euler granular model in STAR-CCM+ for a gas-solid flow in a rectangular bubbling fluidized bed. The problem studied was announced as Small Scale Challenge Problem (SSCP-I) in 2013. Experiment... Read More about Simulation of rectangular fluidised bed with Geldart D particles..

Numerical investigation of the effect of bed height and coefficient of restitution on the minimum fluidization velocity of a cylindrical fluidized bed. (2013)
Presentation / Conference
KARNIK, A., RANGARAJAN, A. and TANDON, A. 2013. Numerical investigation of the effect of bed height and coefficient of restitution on the minimum fluidization velocity of a cylindrical fluidized bed. Presented at the 8th International conference on multiphase flow (ICMF 2013), 26-31 May 2013, Jeju, Korea.

Numerical simulation for 4 different ratios of initial bed heights (H) to base diameter (D), were performed; viz. 0.5, 1, 2 and 3. Glass beads of density 2600kg/m3 and with an average diameter of 550μm were used for all the simulations. Simulations w... Read More about Numerical investigation of the effect of bed height and coefficient of restitution on the minimum fluidization velocity of a cylindrical fluidized bed..

Mitigation of preferential concentration of small inertial particles in stationary isotropic turbulence using electrical and gravitational body forces. (2012)
Journal Article
KARNIK, A.U. and SHRIMPTON, J.S. 2012. Mitigation of preferential concentration of small inertial particles in stationary isotropic turbulence using electrical and gravitational body forces. Physics of fluids [online], 24(7), article ID 073301. Available from: https://doi.org/10.1063/1.4732540

Particles with a certain range of Stokes numbers preferentially concentrate due to action of turbulent motion and body forces such as gravity are known to influence this process. The effect of electric charge, residing on particles, upon the phenomen... Read More about Mitigation of preferential concentration of small inertial particles in stationary isotropic turbulence using electrical and gravitational body forces..

Destruction of preferential accumulation using Lorentz force interactions. (2008)
Presentation / Conference
KARNIK, A. and SHRIMPTON, J. 2008. Destruction of preferential accumulation using Lorentz force interactions. Presented at the 22nd European conference on liquid atomization and spray systems (ILASS2008), 8-10 September 2008, Como Lake, Italy [online]. Available from: https://www.ilasseurope.org/ICLASS/ILASS2008_COMO/file/papers/5-1.pdf

The effect of electric charge, residing on particles, upon the phenomenon of preferential accumulation is investigated using direct numerical simulations of forced isotropic turbulence. It is well known that particles with a certain range of Stokes n... Read More about Destruction of preferential accumulation using Lorentz force interactions..