Results 11 to 20 of about 62,025 (300)
CONSTRUCTAL DESIGN OF A VORTEX TUBE FOR SEVERAL INLET STAGNATION PRESSURES [PDF]
Revista de Engenharia Térmica, 2012 The present paper shows a numerical study concerned with the geometrical optimization of a vortex tube device by means of Constructal Design for several inlet stagnation pressures. In the present study, it is evaluated a vortex tube with two-dimensional axisymmetric computational domain with dry air as the working fluid.
Crístofer Hood Marques +3 more
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Mechanism and numerical simulation of pressure stagnation during water jetting perforation [PDF]
Petroleum Science, 2008 When perforating with an abrasive water jet, it is possible that the pressure in the hole (perforation) will be higher than that in the annulus because of water jet blasting against the hole wall, which also is the theoretical basis for the technology of hydro-jet fracturing.
Zhongwei Huang +4 more
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Experimental Thermal and Fluid Science, 2019 The measurement of transient stagnation pressure in impulse facilities, such as shock tubes and expansion tubes, is critical due to the limited experimental time window. In the present study, we investigate the characteristic behavior of pressure sensors shielded by blunt and conical housings, and evaluate the specific influence of the housing ...
Zhaoguang Wang +4 more
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Combination probes for stagnation pressure and temperature measurements in gas turbine engines [PDF]
Measurement Science and Technology, 2017 During gas turbine engine testing, steady-state gas-path stagnation pressures and temperatures are measured in order to calculate the efficiencies of the main components of turbomachinery. These measurements are acquired using fixed intrusive probes, which are installed at the inlet and outlet of each component at discrete point locations across the ...
Clare Bonham +3 more
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Dynamic Properties of the Stagnation Pressure of Water Jet in the Continous Region.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1996 It is of interest to clarify dynamic properties of water jet pressure acting on the surface of an object to be cut in order to clarify the cutting mechanism. This pressure includes a wide range of frequency components from the pulsation of a plunger pump to the impact pressure caused by the impingement of droplets.
Fumio Kiyono +2 more
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Pressure Anomalies Beneath Solitary Waves with Constant Vorticity
Eng, 2023 While some studies have investigated the particle trajectories and stagnation points beneath solitary waves with constant vorticity, little is known about the pressure beneath such waves.
Marcelo V. Flamarion +2 more
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Advances in Mechanical Engineering, 2022 The difficulty in understanding the flow characteristics of water jets impacting on solid surfaces made the water jet technology requiring further investigations. The Arbitrary Lagrange-Euler (ALE) method is used to develop a numerical model of the water
Jianguo Zhang +3 more
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Conceptualisation of a novel electromechanical system for small-volume needle-free jet injection
Engineering Applications of Computational Fluid Mechanics, 2023 Needle-free jet injectors are minimally invasive drug delivery systems that utilise high-velocity microjets (∼100 m/s) created by pressurising the liquid drug through a micronozzle (50–300 µm in diameter).
Abdul Mohizin, Jung Kyung Kim
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Energies, 2023 The determination of the critical ventilation flow rate is significant for risk control and standard development during accidental hydrogen leakage in a confined space with hydrogen-related equipment.
Xuxu Sun +4 more
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Analytic Adjoint Solutions for the 2D Incompressible Euler Equations Using the Green's Function Approach [PDF]
Journal of Fluid Mechanics 943 (2022) A22, 2022 The Green's function approach of Giles and Pierce is used to build the lift and drag based analytic adjoint solutions for the two-dimensional incompressible Euler equations around irrotational base flows. The drag-based adjoint solution turns out to have a very simple closed form in terms of the flow variables and is smooth throughout the flow domain ...
arxiv +1 more source