-
Article
A hybrid LES (Large Eddy Simulation)/assumed sub-grid PDF (Probability Density Function) model for supersonic turbulent combustion
A hybrid LES (Large Eddy Simulation)/assumed sub-grid PDF (Probability Density Function) closure model has been developed for supersonic turbulent combustion. Scalar transport equations for all species in a gi...
-
Article
Theoretical analysis of flamelet model for supersonic turbulent combustion
Being physically intuitionistic and computationally efficient, the flamelet model has obtained increasing attention and becomes popular in numerical simulations of supersonic combustion. However, the flamelet ...
-
Article
Food web structure of a shallow eutrophic lake (Lake Taihu, China) assessed by stable isotope analysis
Lake Taihu is a large, shallow, and eutrophic lake in China. It has provided local communities with valuable fisheries for centuries, but little is known of the trophodynamics, or of its faunal communities. Ca...
-
Article
High temperature and high pressure rheological properties of high-density water-based drilling fluids for deep wells
To maintain tight control over rheological properties of high-density water-based drilling fluids, it is essential to understand the factors influencing the rheology of water-based drilling fluids. This paper ...
-
Article
Characteristics of Oscillations in Supersonic Open Cavity Flows
Characteristics of oscillations in supersonic open cavity flows are investigated numerically using hybrid RANS/LES (Reynolds-Averaged Navier-Stokes/Large Eddy Simulation) method. The oscillation regimes and fe...
-
Article
Nonlinear analysis of combustion oscillations in a cavity-based supersonic combustor
Combustion oscillations in a supersonic combustor with hydrogen injection upstream of a cavity flameholder are investigated using nonlinear analysis based on experimental measurements. Time series of both flam...
-
Article
Hybrid Reynolds-averaged Navier-Stokes/large-eddy simulation of jet mixing in a supersonic crossflow
A sonic under-expanded transverse jet injection into a Ma 1.6 supersonic crossflow is investigated numerically using our hybrid RANS/LES (Reynolds-averaged Navier-Stokes/large eddy simulation) method. First, a...
-
Article
Experimental investigation on transverse jet penetration into a supersonic turbulent crossflow
The paper evaluates the evolvement of coherent structures and penetration height of gaseous transverse jet penetration into a supersonic turbulent flow. The high spatiotemporal resolution coherent structures o...
-
Article
Numerical study on supersonic mixing and combustion with hydrogen injection upstream of a cavity flameholder
Characteristics of supersonic mixing and combustion with hydrogen injection upstream of a cavity flameholder are investigated numerically using hybrid RANS/LES (Reynolds-Averaged Navier–Stokes/Large-Eddy Simu...
-
Article
Assessment of HCV genotypes in Yunnan Province of Southwest China
Recently, we reported that the frequency of hepatitis C virus (HCV) genotypes and subtypes has rapidly changed among intravenous drug users (IDUs) in Yunnan Province over the last 5 years; this is especially t...
-
Article
Novel modified microcrystalline cellulose-based porous material for fast and effective heavy-metal removal from aqueous solution
A novel porous adsorbent with high surface area and rigid structure was prepared by crosslinking oxidized microcrystalline cellulose particles with tetrafluoroterephthalonitrile. N2 adsorption–desorption measurem...
-
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...
-
Chapter
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...
-
Chapter
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...
-
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...
-
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...
-
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 ...
-
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...
-
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 ...
-
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...
