Numerical Methods of Visco-elastic Segments on Water Hammer Pressures [PDF]
Numerical Methods in Civil Engineering, 2020 Water hammer is a phenomenon accompanied by damage, vibration and noise. In order to deal with this phenomenon, different solutions have been proposed.
J. Rahimi Firuz +2 more
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Identifying the best method for linearizing the nonlinear friction term to analyze the transient flow in pipeline systems [PDF]
Journal of Applied Research in Water and Wastewater, 2022 To analyze transient flows, continuity and momentum equations must be solved. Due to the non-linear friction term in the momentum equation, numerical methods such as method of characteristics (MOC) are used to analyze the problem in thetime domain ...
Mahshid Alsadat Mousavian +2 more
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An Analytical Solution for Unsteady Laminar Flow in Tubes with a Tapered Wall Thickness
Fluids, 2021 Transient fluid flows through tubes are critical in such topics as water hammer, ram pumps and pipeline dynamics. While analytical solutions exist in the literature for simple geometries such as tapered and non-tapered tube diameters, one area that is ...
Travis Wiens, Elnaz Etminan
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Suppressing Uncommanded Roll-Yaw Motion by Jet Flow Control Based on Reinforcement Learning
International Journal of Aerospace Engineering, 2023 The suppression of uncommanded motion of aircraft at high angles of attack (α) is a research topic of continuous concern in the aviation field. Aiming at the suppression of uncommanded roll-yaw motion of a canard aircraft at high angles of attack, an ...
Yizhang Dong +3 more
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Numerical investigation of the effect of nanoparticle sedimentation on the thermal behavior of cavities with different cross-sectional shapes [PDF]
Journal of Particle Science and Technology, 2023 In this paper, the thermal behavior of nanofluids was numerically simulated during nanoparticle sedimentation. A new solver was developed in the open-source framework, i.e. openFoam, using the finite volume method by combining appropriate solvers.
Miralam Mahdi, Amir Noori, Atie Farrokh
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Long Short-Term Memory Based Subsurface Drainage Control for Rainfall-Induced Landslide Prevention
Geosciences, 2022 Subsurface drainage has been widely accepted to mitigate the hazard of landslides in areas prone to flooding. Specifically, the use of drainage wells with pumping systems has been recognized as an effective short-term solution to lower the groundwater ...
Aynaz Biniyaz +3 more
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Nonlinear Engineering, 2023 In this article, we consider the flow of a Burgers’ fluid of transient electro-osmotic type in a small tube with a circular cross-section. Analytical results are found for the transient velocity and, electric potential profile by solving the Navier ...
Raza Nauman +3 more
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Numerical Simulation of Dynamic Phenomena of Unsteady Friction and Viscoelastic Effects in Pipeline under the Transient Flow [PDF]
علوم و مهندسی آبیاری, 2018 Plastic pipes are widely used in pressurized water systems. The analysis of transient flow and estimation of maximum and minimum pressure wave propagation in pipeline and pipe networks is required for design and practice of piping systems, pumping ...
Mostafa Rahmanshahi +2 more
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Contaminant transport analysis under non-linear sorption in a heterogeneous groundwater system
Applied Mathematics in Science and Engineering, 2022 In this study, a one-dimensional non-linear advection–dispersion equation subject to spatial–temporal dependent advection and dispersion coefficients is solved for a heterogeneous groundwater system.
Rashmi Radha +2 more
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Numerical Analysis of Seepage in Steady and Transient Flow State by the Radial Basis Function Method [PDF]
Numerical Methods in Civil Engineering, 2023 Here, the meshless method with the finite difference method has been used to discretize the governing equations of the seepage phenomenon from under the dam in the steady and transient flow.
Rasoul Daneshfaraz +3 more
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