Search Results - "Saqr, Khalid M."

What does computational fluid dynamics tell us about intracranial aneurysms? A meta-analysis and critical review by Saqr, Khalid M, Rashad, Sherif, Tupin, Simon, Niizuma, Kuniyasu, Hassan, Tamer, Tominaga, Teiji, Ohta, Makoto

“…Despite the plethora of published studies on intracranial aneurysms (IAs) hemodynamic using computational fluid dynamics (CFD), limited progress has been made…”
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Physiologic blood flow is turbulent by Saqr, Khalid M., Tupin, Simon, Rashad, Sherif, Endo, Toshiki, Niizuma, Kuniyasu, Tominaga, Teiji, Ohta, Makoto

“…Contemporary paradigm of peripheral and intracranial vascular hemodynamics considers physiologic blood flow to be laminar. Transition to turbulence is…”
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Effects of wall compliance on multiharmonic pulsatile flow in idealized cerebral aneurysm models: comparative PIV experiments by Tupin, Simon, Saqr, Khalid M., Ohta, Makoto

“…The hemodynamics of intracranial aneurysm (IA) comprise complex phenomena that influence the IA’s growth and rupture risk. It has long been argued in in silico…”
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Wall shear stress in the Navier-Stokes equation: A commentary by Saqr, Khalid M.

“…[...]the use of Cartesian differential operator ∇=∂∂x+∂∂y+∂∂z and Kronecker's delta δij is valid. Normal stress components (scalar fields, similar to pressure)…”
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On non-Kolmogorov turbulence in blood flow and its possible role in mechanobiological stimulation by Saqr, Khalid M., Zidane, Iham F.

“…The study of turbulence in physiologic blood flow is important due to its strong relevance to endothelial mechanobiology and vascular disease . Recently, Saqr…”
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Evidence for non-Newtonian behavior of intracranial blood flow from Doppler ultrasonography measurements by Saqr, Khalid M., Mansour, Ossama, Tupin, Simon, Hassan, Tamer, Ohta, Makoto

“…Computational fluid dynamics (CFD) studies of intracranial hemodynamics often use Newtonian viscosity model to close the shear rate term in the Navier-Stokes…”
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The hemodynamic complexities underlying transient ischemic attacks in early-stage Moyamoya disease: an exploratory CFD study by Rashad, Sherif, Saqr, Khalid M., Fujimura, Miki, Niizuma, Kuniyasu, Tominaga, Teiji

“…Moyamoya disease (MMD) is a rare cerebro-occlusive disease with unknown etiology that can cause both ischemic and hemorrhagic stroke. MMD is characterized by…”
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Numerical study on the energy cascade of pulsatile Newtonian and power-law flow models in an ICA bifurcation by Mahrous, Samar A, Sidik, Nor Azwadi Che, Saqr, Khalid M

“…The complex physics and biology underlying intracranial hemodynamics are yet to be fully revealed. A fully resolved direct numerical simulation (DNS) study has…”
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Effects of swirl intensity on heat transfer and entropy generation in turbulent decaying swirl flow by Saqr, Khalid M., Wahid, Mazlan A.

“…In the present work, numerical simulations of turbulent incompressible nonisothermal pipe flows were conducted to investigate the effect of inlet swirl…”
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Non-Kolmogorov turbulence in carotid artery stenosis and the impact of carotid stenting on near-wall turbulence by Saqr, Khalid M., Kano, Kiyomitsu, Rashad, Sherif, Niizuma, Kuniyasu, Kaku, Yasuhiko, Iwama, Toru, Tominaga, Teiji

“…Endovascular stents have become a standard management procedure for carotid artery stenosis. Recent discoveries related to the complex turbulence dynamics in…”
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A review on the flow structure and pollutant dispersion in urban street canyons for urban planning strategies by Yazid, Afiq Witri Muhammad, Sidik, Nor Azwadi Che, Salim, Salim Mohamed, Saqr, Khalid M

“…As a result of rapid urbanization in numerous cities around the world, the demand for transportation has increased rapidly, resulting in emission of high…”
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Computational fluid dynamics simulations of cerebral aneurysm using Newtonian, power-law and quasi-mechanistic blood viscosity models by Saqr, Khalid M

“…Cerebral aneurysm is a fatal neurovascular disorder. Computational fluid dynamics simulation of aneurysm haemodynamics is one of the most important research…”
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Wells turbine for wave energy conversion: a review by Shehata, Ahmed S., Xiao, Qing, Saqr, Khalid M., Alexander, Day

“…Summary In the past 20 years, the use of wave energy systems has significantly increased, generally depending on the oscillating water column concept. Wells…”
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Large eddy simulation and preliminary modeling of the flow downstream a variable geometry swirler for gas turbine combustors by Eldrainy, Yehia A., Saqr, Khalid M., Aly, Hossam S., Lazim, Tholudin Mat, Jaafar, Mohammad Nazri Mohd

“…This work presents a novel swirler with variable blade configuration for gas turbine combustors and industrial burners. The flow dynamics downstream the…”
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Improving indoor thermal comfort by using phase change materials: A review by Abuelnuor, Abuelnuor A. A., Omara, Adil A. M., Saqr, Khalid M., Elhag, Ibrahim H. I.

“…Summary Phase change materials (PCMs) have great potentials to be used in modern building materials to stabilize indoor temperature fluctuations for improving…”
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On the role of surface roughness in the aerodynamic performance and energy conversion of horizontal wind turbine blades: a review by Zidane, Iham F., Saqr, Khalid M., Swadener, Greg, Ma, Xianghong, Shehadeh, Mohamed F.

“…Summary Renewable energy is one of the main pillars of sustainable development, especially in developing economies. Increasing energy demand and the limitation…”
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Numerical simulations of the effect of an isotropic heat field on the entropy generation due to natural convection in a square cavity by El-Maghlany, Wael M., Saqr, Khalid M., Teamah, Mohamed A.

“…•Entropy generation in laminar natural convection in square cavity numerically studied.•The cavity subjected to an isotropic heat field with different…”
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Optimum operational performance of a new stand-alone agricultural greenhouse with integrated-TPV solar panels by Hassan, Gasser E., Salah, Alaa H., Fath, Hassan, Elhelw, Mohamed, Hassan, Amany, Saqr, Khalid M.

“…•The performance of a new stand-alone greenhouse (GH) is analytically investigated.•Several scenarios are investigated to find the optimum operating…”
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Effects of hydrogen addition on the structure and pollutant emissions of a turbulent unconfined swirling flame by Rohani, Behzad, Saqr, Khalid M.

“…This article aims at investigating the effect of hydrogen addition on the temperature and pollutant emissions of turbulent unconfined swirling methane/air…”
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Characteristics of biomass in flameless combustion: A review by Abuelnuor, A.A.A., Wahid, M.A., Hosseini, Seyed Ehsan, Saat, A., Saqr, Khalid M., Sait, Hani H., Osman, M.

“…The demands of energy and pollutant emissions reduction have motivated the combustion researchers to work on combustion improvement. Flameless combustion or…”
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