Gaseous detonation

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August undefined, 2024

WebJan 1, 2009 · Conclusions. There is no single paradigm for detonation front structure but a range of behavior that depends on mixture type, boundary, and initial … WebJan 1, 1991 · Gaseous detonations 331 Clearly, between the eighth and ninth frames the mechanism of combustion changes and a detonation is initiated propagating initially at a …

Detonation in gases - ScienceDirect

WebApr 11, 2024 · The former two cases are observed in a stoichiometric hydrogen-air mixture, the oblique detonation originates from the impact shock region where the pre-combustion hot gas near the wall interacts with the oblique shocks. In the second case, different proportions of dilution gas are tested. WebDec 9, 2004 · This option allows users to search by Publication, Volume and Page Selecting this option will search the current publication in context. Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications for the Publisher/Society in context hcp in bridge

Minimum tube diameters for steady propagation of …

WebSep 27, 2024 · The first studies of gaseous detonation bounded by an inert confinement were performed by Sommers and Morrison . An unsuccessful attempt was made to obtain an autonomous detonation in a cylindrical column of reactive gas surrounded by air. The propagation was, however, achieved in a rectangular channel composed of three rigid … WebJan 17, 2024 · Gaseous detonation with water droplets (WD) propagates stably with a velocity decrease compared with the dry … WebOct 1, 2024 · Stability of one-dimensional gaseous detonations is revisited using both asymptotic analysis and high-order numerical simulations. The double limit of small heat … hcp in automotive

The Influence of Pipe Bending Curvature on H2-O2 Gaseous Detonation ...

Dynamic Structure of Gaseous Detonation SpringerLink

WebIn this paper, dynamic interactions between the FeAl particles and the gaseous detonation stream during supersonic D-gun spraying (DGS) conditions into the water are discussed in detail. Analytical and numerical models for the prediction of momentum and complex heat exchange, that includes radiative effects of heat transfer between the FeAl particle and … WebAug 27, 2024 · The gas phase occurs as compressed even to a higher rate than in gaseous detonation. In the limit of the infinite thickness of the liquid films, the bubbles are collapsing, so extreme values of temperature and pressure can be achieved inside the bubble due to the energy focusing. In the case of the finite thickness of liquid films, they are ... gold duallyWebDetonation (from Latin detonare 'to thunder down/forth' [1]) is a type of combustion involving a supersonic exothermic front accelerating through a medium that eventually drives a shock front propagating directly in front … hcp in atomic

"WebThe Euler-Lagrangian method was used to describe the gas–liquid two-phase flow phenomenon. The random trajectory model was used to track the droplet movement process, and the infinite thermal conductivity model was used to describe the evaporation process. ... Using preheated kerosene as the fuel of the rotating detonation scramjet can ... " - Gaseous detonation

Gaseous detonation

WebMach numbers just in front of the detonation that range from 0.7 at the base of the detonation to over 1.0 at the top [11]. A. Ratio of Specific Heats Selection The ratio of specific heats, , can vary substantially in real gases during a detonative cycle. However, in order to use the CPG assumption of this paper only one value can be used.

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WebThe paper reviews recent progress in the field of gaseous detonations, with sections on shock diffraction and reflection, the transition to detonation, hybrid, spherically … WebGaseous detonation technology has a good application prospect in engine [2,3,4,5,6]. Most of the experimental studies and numerical simulation in the gaseous detonation wave focus on cell structure evolution and the influence of initial conditions in a straight pipe [7,8,9,10,11,12,13,14].

WebFind many great new & used options and get the best deals for Ignition Knock (Detonation) Sensor-ELECTRIC/GAS Holstein 2KNC0154 at the best online prices at eBay! Free shipping for many products! Web−Single chosen to match CEA (real gas) distribution • Throat is notionally fluidic and affects cycle time and refill Mach −Sized such that avg. refill Mach number matches predetonation axial Mach number from CFD simulations • Characteristic length, L eff determined by matching circumferential detonation transit time to lumped

WebJan 1, 2009 · Detonation in gases. 1. Introduction. Fill a long tube with a fuel–oxygen mixture, ignite it with a spark at one end, and you are likely to observe a supersonic combustion wave or detonation moving with a remarkably constant speed that is between five and ten times the velocity of sound in the original mixture. Webdetonation transition. We give some recent results on pressure and elastic strain measurements in the transition regime for a thick-wall piping, and some remarks about plastic deformation. 1 Introduction The goal of this paper is to summarize the state of knowledge about gaseous detonation loading of pip-ing and indicate some of the more ...

WebSep 11, 2024 · Detonation—sometimes called knock or pre-ignition—is a pinging sound that can sometimes be heard during acceleration and throttle tip-in. Unlike normal …

WebOct 1, 1977 · Most fuel-oxygen gas mixtures can be detonated. If a detonating mixture is diluted with an inert gas such as nitrogen, there then exists a particular oxygen to nitrogen ratio below which the mixture can no longer be detonated. If this oxygen to nitrogen 0.25 (composition of air), the fuel will also detonate when mixed with air. If a mixture … hcp in catsWebInternal pressure loads due to gaseous detonations. K. Boyack, S. Tieszen, D. Stamps. Physics. Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences. 1993. The internal loading of structures and confinements by gaseous detonation is studied using a multidimensional strong-shock physics code. gold dubai online shopWebJan 1, 2009 · 1. Introduction. Fill a long tube with a fuel–oxygen mixture, ignite it with a spark at one end, and you are likely to observe a supersonic combustion wave or … hcp in chemistryWebThe detonation process is based on repetitive explosions or detonations of oxygen-fuel gas mixtures, rather than the continuous burning of a combustion flame, as in the HVOF … hcp in childrenWebThe efficient utilization of energy in rich fuel detonation processes and the effective control method of soot are important topics in combustion research. In this paper, we numerically study the detonation wave behavior of acetylene–air systems in rich fuel condition by using a reduced reaction mechanism. The non-stiff terms of the governing equations … gold dualshock 4 controllerWebMay 12, 2024 · The propagation of two-dimensional cellular gaseous detonation bounded by an inert layer is examined via computational simulations. The analysis is based on the … gold dualshock 4WebFeb 8, 2024 · Rotating Detonation Rocket Engines (RDRE) have been marketed primarily for their higher specific impulse potential over constant pressure (CP) liquid rocket engines. However, several other performance advantages exist with RDREs over CP engines such as heat transfer advantages for gas expander cycle, increased completeness of … hcp in cloud