2 edition of Description of an oscillating flow pressure drop test rig found in the catalog.
Description of an oscillating flow pressure drop test rig
by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, DC], [Springfield, Va
Written in English
|Statement||J. Gary Wood ... [et al.].|
|Series||NASA technical memorandum -- 100905.|
|Contributions||Wood, J. Gary., United States. National Aeronautics and Space Administration.|
|The Physical Object|
Numerical simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling pipe. Yan GU, Yonglin JU() Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai , China Balakrishnan A R. Flow and pressure drop fluctuations in a vertical tube subject to low frequency. FLOW STRUCTURES GENERATED BY PRESSURE-CONTROLLED SELF-OSCILLATING REED it is obvious that the mechanism of self-oscillation is based on oscillating pressure forces, induced by the valve motion. Even when the velocity of the jet through the valve is A description of this large-amplitude behaviour necessarily involves.
Jul 21, · Oscillating Hand Tool Lab Test: Can These Four Stand Up to Traditional Power Tools? An oscillating tool closely resembles a /2-in angle grinder. But the business end, instead of spinning Author: Doug Mahoney. HAWE Hydraulik develops and produces hydraulic components and systems for mechanical and plant engineering.
Application of Pulsations of Oscillating Gas Flow Pressure for Processing the Heat-Strengthened Samples of Steel. Ekaterina E. Ilina1 *, Nikolay V. Prodan2, Svetlana A. Vologzhanina1 and Igor A. Volobuev1 1 University ITMO, 49, Kronverksky Av., St. Petersburg, , Russia. 2. The oscillating motion of the actuator at different frequencies varies the pressure and volume of the pressure chamber in time to draw in and jetting out the water at certain mass flow rate. The aim of this research was to analyze the influence of the actuating frequency on the fluid flow in the pressure.
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This paper describes A test rig designed to generat.e heat exchanger pressure drop hf0rmAtiOn under oscillating flow conditions. This oscillating flow rig is based on a variable-stroke and variable-frequency linear drive motor.
A frequency capability of hertz and A mean test pressure up to. Get this from a library. Description of an oscillating flow pressure drop test rig.
[J Gary Wood; United States. National Aeronautics and Space Administration.;]. The regenerator test rig is a modified form of an earlier pressure drop test rig designed by Sunpower Inc.
for NASA-Lewis. This pressure drop test rig was used to perform extensive oscillating flow pressure drop testing on heat exchangers and regenerators typical to those used in Stifling engines.
Novel flow analysis of regenerator under oscillating flow with pulsating pressure. there has been little research effort on the pressure drop under oscillating flow and pulsating pressure.
The detailed description of the experimental apparatus was published in the previous article Cited by: This banner text can have markup. web; books; video; audio; software; images; Toggle navigation.
Measurement of cryogenic regenerator characteristics under oscillating flow and pulsating pressure Article in Cryogenics 43(10) · October with 66 Reads How we measure 'reads'.
Experimental data from an oscillating circular piston positive displacement flowmeter are described which focused on leakage flows and wear. This is the second part of a two part paper on the experimental tests, the first part concerned piston movement and pressure abcdfestivalgoa.com by: 5.
Choi et al.  and Nam and Jeong  conducted experimental investigation on screen matrix regenerator and presented new oscillatory flow models of the pressure drop in oscillating flow through.
Jul 19, · Flow characteristics and loss mechanism inside the helical pipe with large-caliber and large-scale Dean number were analyzed in this study. Numerical simulation was carried out for exploring velocity distribution, pressure field, and secondary flow by varying coil parameters such as Dean number, curvature radius, and coil abcdfestivalgoa.com by: 6.
Such pressure drop estimates are generally based on steady flow correlations which do not necessarily apply to oscillating flow. The present paper contains experimental data on the pressure drop over regenerators subjected to an oscillating flow of helium gas at K and a charge pressure of 11 abcdfestivalgoa.com by: Mar 01, · Numerical simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling pipe.
Authors; (UDF) in order to understand the periodically oscillating pressure characteristics of inviscid flow in the rolling pipe.
Pendyala R, Jayanti S, Balakrishnan A R. Flow and pressure drop fluctuations in a Cited by: 1. CHAPTER 6 OSCILLATORY FLOW INTRODUCTION 1 The first thing that comes to your mind when I mention water waves are probably the waves that appear on the water surface when the wind blows.
These range in size from tiny ripples to giants up to a few tens of meters high and up to a. Simulation of surface flows on a droplet in an oscillating pressure field Tadashi Watanabe Abstract—The surface flows on a droplet in an oscillating pressure field are simulated numerically by solving the Navier-Stokes equations using the Arbitrary Lagrangian-Eulerian and level set coupled method.
Detailed transient flow fields in and around the. Δp = p o – p i. where. Δp = pressure differential [pounds per square inch (psi)]. p o = pressure outside the casing at the bottom (psi), assumed equal to reservoir pressure of 11, psi, which is a pore pressure of pounds per gallon (ppg) at the bottom of the reservoir at 18, feet (true vertical depth); and.
p i = pressure on the inside above the cement (psi). Varying the pressure or flow allows a flow curve to be determined. When a relatively small amount of fluid is available for rheometric characterization, a microfluidic rheometer with embedded pressure sensors can be used to measure pressure drop for a controlled flow rate.
Flow rate is controlled, and the test is performed at intervals from zero flow to the maximum rated flow of the filter. Pressure is measured upstream and downstream of the filter to find the pressure drop, or differential pressure.
• Pressure drop in other fluids, like fuel, oil, air, combustion exhaust, abcdfestivalgoa.com: Stuart Jennings, David Keegan, Juan Ramonet, Nicholas Upton. The COVOL oscillating piston flow meters is ideally suited for viscous fluids such as oils, waxes and polymers.
The sensor is constructed in SS, PVC, PP and PTFE materials options. It can be easily cleaned and sterilized. – Solid and liquid flow switches – Pressure control on simple compressors Types of Control. Your Source for Process Control Instrumentation 19 On-Off Control • Not the awtooths oscillating control inherent in on- off control • Proportional control, known as PID, offers straight-line.
A knowledge of fluid mechanics is essential for all branches of engineering. The comprehensive range of SOLTEQ® equipment covers all aspects of the teaching of fluid mechanics in a safe and simple way, supported by high quality teaching materials.
Flow and Pressure Hydraulic pumps create flow not pressure Resistance to flow creates pressure Flow determines actuator speed Pressure determines actuator force Fluid will always take the path of least resistance.
When Fluid moves from an area of high pressure to an area of low pressure (pressure drop) without performing work heat is generated. Jul 23, · Investigation of flow over an oscillating airfoil - Volume - T. LEE, P. GERONTAKOS integrated from surface pressure measurements, and smoke-flow visualizations were also obtained to supplement the hot-film measurements.
Special attention was focused on the behaviour of the spatial-temporal progression of the locations of the boundary Cited by: Should the CIS fuel pressure oscillate on the gauge? We hooked my 74 CIS to a fuel pressure gauge. It shot up to ~50 psi when we engaged the pump however the needle moved ~ psi after a few minutes and continued to do so until we disengaged the pump/turned the key off.A gas meter is a specialized flow meter, used to measure the volume of fuel gases such as natural gas and liquefied petroleum abcdfestivalgoa.com meters are used at residential, commercial, and industrial buildings that consume fuel gas supplied by a gas abcdfestivalgoa.com are more difficult to measure than liquids, because measured volumes are highly affected by temperature and pressure.