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Ballistic Compressor-Based Setup for the Visualization of Liquid Propellant JetCombustion Above 100 MPa

机译：基于弹道压缩机的液体推进剂喷射燃烧可视化设置在100 mpa以上

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This report describes the components and operation of an experimental setup forthe visualization of liquid propellant (LP) jet combustion at pressures above 100 MPa. The apparatus consists of an in-line ballistic compressor and LP injector. The ballistic compressor, based on a modified 76-mm gun, provides high pressure (55 MPa) clear hot gas for the jet ignition. A piston (projectile) is fired toward a test chamber beyond the barrel's end, and its rebound is arrested in a transition section between the test chamber and the barrel. The LP jet is injected once the piston is restrained, and combustion of the jet further elevates the pressure. At a preset pressure, a disk in the piston ruptures, and the combustion gas vents sonically into the barrel. If a monopropellant is used, the jet injection combustion process then resembles liquid rocket combustion, but at very high pressures (140 MPa). This report discusses the ballistics of the compression and compares experimental results to those predicted by a numerical model of the apparatus. Experimentally, a pressure of 70 MPa was achieved upon a 12.5 volumetric compression factor by firing a 10-kg piston into 1.04MPa argon, using a charge of 75g of small grain M1 propellant.

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作者
Birk, A.; Kooker, D. E.;
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年度 1997
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总页数 44
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Liquid propellants; Interior ballistics; Compression ignition; Firingtests(Ordnance); Combustion chambers; Tank guns; Propelling charges; Sabot projectiles; Liquid jets; Howitzers; Monopropellants; Jet flames;

机译：液体推进剂;内部弹道学;压缩点火; Firingtests（军械）;燃烧室;坦克炮;推进装药; sabot射弹;液体喷射器;榴弹炮;单组元推进剂;喷射火焰;

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专利

1. A ballistic compressor-based experiment for the visualization of liquid propellant jet combustion above 100 MPa [J] . A. Birk, D. E. Kooker Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow . 1998,第3期

机译：基于弹道压缩机的实验，用于可视化100 MPa以上的液体推进剂射流燃烧
2. Measurements and modeling of the density of rocket propellant RP-2 at temperatures to 573 K and pressures to 100 MPa [J] . Mallepally R. R., Bamgbade B. A., McHugh M. A., Fuel . 2019,第Octa1期

机译：火箭推进剂RP-2的密度在573 K的温度和100 MPa的压力下进行测量和建模
3. Apparatus for simultaneous determination of the densities and heat capacities of liquids and of liquids with dissolved gas under an extended range of pressure (0.1-100 MPa) [J] . D. Bessieres, H. Saint-Guirons, J. -L. Daridon, Measurement Science & Technology . 2000,第5期

机译：用于在扩展的压力范围（0.1-100 MPa）下同时测定液体和带有溶解气体的液体的密度和热容量的设备
4. The Origins and Growth of Short Range Liquid Propellant Ballistic Rockets [C] . Sameh Helmy, Abdelkader M.Helmy Propulsion and Energy Forum . 2020

机译：短程液体推进剂弹道火箭起源和成长
5. Copper and Gold in Vapors and Liquids as a Function of HCl at 700°C and 100 MPa [D] . Lucchesi, Corrie. 2020

机译：蒸汽和液体中的铜和金作为HCl在700°C和100MPa的函数
6. On Influence of Mechanical Properties of Gun Propellants on Their Ballistic Characteristics Determined in Closed Vessel Tests [O] . Radosław Trębiński, Jacek Janiszewski, Zbigniew Leciejewski, 2020

机译：枪推进剂力学性能对封闭血管试验中测定的弹道特性的影响
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。

Ballistic Compressor-Based Setup for the Visualization of Liquid Propellant JetCombustion Above 100 MPa

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