Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Tamer M. Ahmed"'
Publikováno v:
Brodogradnja, Vol 71, Iss 3, Pp 135-148 (2020)
This paper uses a CFD (Computational Fluid Dynamics) analysis to investigate the shallow water effects on prismatic planing hull. The turbulence flow around the hull was described by Reynolds Navier Stokes equations RANSE using the k-ɛ turbulence mo
Externí odkaz:
https://doaj.org/article/b739a1f0c1ed4d64b3dd9af230ec4622
Publikováno v:
Alexandria Engineering Journal, Vol 57, Iss 4, Pp 3805-3815 (2018)
One of the big challenges, yet to be addressed, in the numerical simulation of cavitating flow on marine propellers is; the existence of laminar and turbulence transition flows over the propeller’s blades. The majority of previous studies employed
Externí odkaz:
https://doaj.org/article/141ee917b1e94fe5af8eb7854495cc2c
Autor:
Tamer M. Ahmed
Publikováno v:
Alexandria Engineering Journal, Vol 57, Iss 3, Pp 1393-1400 (2018)
In this paper, a simplified 2½-degree of freedom time-domain numerical method with non-linearity is developed, presented in detail and validated for simulating parametric roll. The method is termed 2½-degree of freedom since; it first linearly coup
Externí odkaz:
https://doaj.org/article/fdb58d49e3c040d292828404025b5d85
Publikováno v:
Marine Systems & Ocean Technology. 17:188-202
Autor:
Amany Hassan, Ahmed O. Elaghbash, Adel A. Banawan, Rsc for Marine Design, Tamer M. Ahmed, Yasser M. Ahmed
Publikováno v:
Brodogradnja, Vol 71, Iss 3, Pp 135-148 (2020)
Brodogradnja : Teorija i praksa brodogradnje i pomorske tehnike
Volume 71
Issue 3
Brodogradnja : Teorija i praksa brodogradnje i pomorske tehnike
Volume 71
Issue 3
This paper uses a CFD (Computational Fluid Dynamics) analysis to investigate the shallow water effects on prismatic planing hull. The turbulence flow around the hull was described by Reynolds Navier Stokes equations RANSE using the k-ɛ turbulence mo
Autor:
Assim Osman, Lina Abdul Samad, Laila Alromaih, Tamer M. Ahmed, Mohanad Bakkar, Leena Abdalla, Arifa Jamal
Publikováno v:
European Journal of Case Reports in Internal Medicine (2021)
Chronic neutrophilic leukaemia is a very rare disease with diagnosis based on persistent leucocytosis >25×103/μl and monocytes
Publikováno v:
Alexandria Dental Journal. 43:51-56
INTRODUCTION: The goal of modern dentistry is to restore the patient to normal contour, function and esthetics. And what makes implant dentistry unique is the ability to achieve this goal regardless of the atrophy, disease or injury. Implants with sm
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 233:515-527
Determining and understanding the performance characteristics of marine propellers by experiments is quite a complex and costly task. Numerical predictions using computational fluid dynamics simulations could be a valuable alternative provided that t
Publikováno v:
Volume 10: Ocean Renewable Energy.
In this paper, a detailed hydrodynamic analysis of the thrust generated by an oscillating hydrofoil is presented. The hydrofoil is mounted at the bow of a platform supply vessel as a means of auxiliary propulsion and, is vertically oscillating due to
Publikováno v:
Egyptian Journal of Medical Human Genetics; Vol 14, No 4 (2013); 353-360
Occult hepatitis B virus infection (OBI) has been reported among patients with chronic hepatitis C virus (HCV) infection and hepatocellular carcinoma (HCC). This study aimed to evaluate the prevalence of OBI in chronic hepatitis C patients with and w