13 Result(s)
within
Mingbo Sun
Engine Technology
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Chapter
Spray Characteristics of a Liquid Jet in a Supersonic Crossflow
In this chapter, phase doppler anemometer (PDA) and particle image velocimetry (PIV) systems were used to experimentally study the characteristics of liquid jets. The two-dimensional PDA system (Dantec Dynamic...
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Spatial Distribution of Gaseous Jet in Supersonic Crossflow
The efficient delivery of gaseous fuel into supersonic airflow is very important in high-speed air-breathing engines, which require sufficient fuel–air mixing in the extremely short residence time within the e...
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Mixing Characteristics of a Gaseous Jet in a Supersonic Crossflow
The limited flow residence time inside a supersonic combustor makes the mixing of jet fuel and a crossflow a serious problem in air-breathing supersonic engines. The mixing process is the primary factor that r...
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Chapter
Primary Breakup of Liquid Jet in Supersonic Crossflow
In a liquid hydrocarbon-fuelled supersonic combustion ramjet (scramjet) engine, the atomization and mixing of liquid fuel in the supersonic airflow determine the engine ignition reliability and combustion perf...
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Chapter
Introduction
Hypersonic aircraft are flight vehicles which operate at a Mach number higher than 5, including hypersonic cruise aircraft, hypersonic cruise missiles, and reusable orbital aerospace planes. Since these hypers...
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Chapter
Flow Structures of Gaseous Jet in Supersonic Crossflow
Transverse injection into supersonic flow is one of the most fundamental canonical flows for supersonic propulsion community, which has been studied to enhance the understanding of supersonic turbulent mixing ...
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Chapter
Reaction Characteristics of a Gaseous Jet in a Supersonic Crossflow
Most of the previous studies were performed in conventional wind tunnels by accelerating cold air into a supersonic crossflow, namely in low-velocity and low-total enthalpy flow conditions. However, a real sup...
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Chapter
Introduction
The researches on scramjet have lasted for decades and many important methods have been reviewed [1]. However, there are still many challenges in develo** the scramjet, and one of the most crucial issues is to ...
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Chapter
Flow Dominating Instability in Supersonic Flows
The shock-induced separation is a common phenomenon in supersonic combustion, especially when the scramjet combustor works under high equivalence ratios. The low-speed recirculation zone and strong heat releas...
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Chapter
Flame Flashback in Supersonic Flows
Non-stationary flame propagation against the incoming supersonic flow in scramjet engines has been in focus of numerous experimental and computational studies. In this chapter, we give the research work of the...
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Chapter
Acoustic Oscillation in Supersonic Combustor
In the supersonic combustors, there exist intense exothermic reactions between fuel and oxidizer. In many cases the combustor does not work as expected, where the pressure oscillations occur, especially for th...
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Chapter
Cavity Ignition in Supersonic Flows
Scramjets are promising propulsion systems for hypersonic flight vehicles. Development of scramjets relies on sufficient understanding of the complex mixing, ignition and combustion processes inside a scramjet...
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Chapter
Flame Behaviors Near Blowoff in Supersonic Flows
Blowoff limits, including rich blowoff limit (RBO) and lean blowoff limit (LBO), are the boundaries between stable combustion and flame blowoff. The blowoff limits usually depend on the conditions of inflow, f...
