Results 221 to 230 of about 100,607 (267)

Impurity Measurements in the Expansion Tube

1971
An assessment is given on the importance of impurities in expansion tube flow, using the results of spectroscopic measurements. The expansion tube is a new type facility which produces high energy, high Mach number flows. It has been used at the Ballistic Research Laboratories for the study of nonequilibrium effects in high temperature gases.
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A self-opening diaphragm for expansion tubes and expansion tunnels

AIAA Journal, 1970
Self opening em-operated secondary and ternary mylar diaphragms for expansion tubes and ...
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Investigation of the Expansion Requirement of Tube to Tube sheet Rolling Fitting

Journal of Engineering and Computer Sciences, 2014
Tube Expansion is the process of reducing a tube wall by displacing the outside diameter of the tube against a fixed container such as rolling tubes into tube sheets. To assure a proper tube joint to the tubesheet, the tube wall must be reduced by a predetermined percentage. Different methods have been used to estimate the necessary amount of expansion
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Spent Gas Handling for Expansion Tubes

The University of Queensland has completed extensive research into the flow of fluid around objects to simulate the re-entry of spacecraft into atmospheres and flow through scramjets (Jacobs et al., Unknown). This has been made possible through the use of expansion tubes which can reach gas flow velocities in excess of 10km/s (Jacobs et al., Unknown ...
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Level of Expansion of Tubes in Tubesheet for Integral Participation of Tubes With Tubesheet

Volume 4: Gas Turbines; Pressure Technologies; Robotics & Automation
Abstract Tubesheets in heat exchangers are drilled to accommodate tubes as per the thermal design for effective heat transfer which are usually in close proximities. Though minimum permissible distance is maintained, which is the pitch between the tubeholes; there is very limited material remaining between the tubeholes greatly ...
Ramakrishnan Tiru N., Vikrant D. Sharma, Sandeepkumar Goyal   +2 more
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Low-Temperature Expansion Pulse Tubes

1984
Pulse tube refrigeration units using the Gifford-Longsworth cycle are remarkable among other types of low-temperature devices because of their simplicity and reliability. They are not widely used in cryogenics, however, because of their low efficiency and small refrigerating capacity, partly because of their low pulse frequency.
E. I. Mikulin, A. A. Tarasov, M. P. Shkrebyonock   +2 more
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Development and Modelling of Expansion Tubes

The accurate simulation of flow conditions encountered by aircraft is imperative to the development of aeronautics and astronautics. Test flights are expensive and time consuming, thus, ground based test facilities provide the majority of data in new flight regimes.
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A novel deformation mode of expansion tubes accounting for extra contact

International Journal of Mechanical Sciences, 2023
Lin Zhang, Shuguang Yao, Bowen Tan
exaly  

Thermo-mechanical coupling analysis of expansion tubes: Theoretical prediction and experimental investigation

Thin-Walled Structures, 2021
Shuguang Yao, Bowen Tan, Heng Ban
exaly  

Analysis of Experimental Data of the X3 Expansion Tube

The University of Queensland (UQ) Mechanical Engineering Department currently houses three expansion tubes (X1, X2 and X3) that are used to create hypersonic flows. Recently the experimental results of the X3 shock tube section have been found to be inaccurate.
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