A5034681445- Combustion and Detonation Processes
- Fire dynamics and safety research
- Combustion and flame dynamics
- Transition Metal Oxide Nanomaterials
- Conducting polymers and applications
- Gas Sensing Nanomaterials and Sensors
- Rocket and propulsion systems research
- Energetic Materials and Combustion
- Computational Fluid Dynamics and Aerodynamics
- Advanced Combustion Engine Technologies
- Organic Electronics and Photovoltaics
- Risk and Safety Analysis
- Laser-Plasma Interactions and Diagnostics
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Pigment Synthesis and Properties
- Educational Reforms and Innovations
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Fluid Dynamics and Turbulent Flows
- Electromagnetic Launch and Propulsion Technology
- Fluid Dynamics and Vibration Analysis
- Thin-Film Transistor Technologies
- Advanced Memory and Neural Computing
- Analytical Chemistry and Sensors
National United University
2019-2024
United States Air Force Office of Scientific Research
2016-2018
Guangdong University of Technology
2018
National Renewable Energy Laboratory
2012-2014
Colorado School of Mines
2011-2014
Beijing University of Technology
2006
United States Naval Research Laboratory
1994-2005
United States Navy
1993-2003
Computational Physics (United States)
1991-2000
Naval Research Laboratory Laboratories for Computational Physics & Fluid Dynamics
1991-2000
This paper provides an overview of the National Jet Fuels Combustion Program led by Federal Aviation Administration, U.S. Air Force Research Laboratory, and NASA. The program follows from basic research Office Scientific results engine-company-led Rules Tools funded Force. overall objective this fuels was to develop combustion-related generic test modeling capabilities that can improve understanding impact fuel chemical composition physical properties on combustion, leading accelerating...
Detonation structures generated by wedge-induced, oblique shocks in hydrogen–oxygen–nitrogen mixtures were investigated time-dependent numerical simulations. The simulations show a multidimensional detonation structure consisting of the following elements: (1) nonreactive, shock, (2) an induction zone, (3) set deflagration waves, and (4) ‘‘reactive shock,’’ which shock front is closely coupled with energy release. In wide range flow mixture conditions, this stable very resilient to...
pH responsive chitosan and 3-Glycidyloxypropyl trimethoxysilane (GPTMS) hydrogels were synthesized by the sol-gel crosslinking reaction. GPTMS was introduced to influence several behaviors of hydrogels, such as swelling ratio, mechanical properties, thermodynamics, kinetics, expansion mechanism. The functional groups Chitosan/GPTMS hybrid verified FT-IR spectrometer. Differential scanning calorimetry (DSC) thermogravimetric analysis (TGA) used analyzed thermal behavior water molecules,...
Partial fuel filling in pulse detonation engines (PDEs) is a fuel-filling strategy which only part of the PDE tube filled with combustible mixture and rest nonreactive mixture. The structures pressure waves flowfield partially PDEs are illustrated detail by systematic numerical simulations. simulations show those control development and, hence, thrust production PDE. Based on information from simulations, performance analysis also conducted. shows that for section given length impulse...
A low-temperature ozone exposure technique was employed for the post-treatment of WOx nanorod thin films fabricated from hot-wire chemical vapor deposition (HWCVD) and ultrasonic spray (USD) techniques. The resulting were characterized with x-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy, UV–vis–NIR spectroscopy photoelectron (XPS). stoichiometry surface crystallinity subsequently modulated upon thermal annealing without particle growth. electrochromic...
The focus of this paper is on numerical modelling methanol liquid pool fires. A mathematical model first developed to describe the evaporation and burning a two-dimensional or axisymmetric containing pure methanol. Then, complete set unsteady, compressible Navier-Stokes equations for reactive flows are solved in gas phase convection fuel gases away from surface, diffusion into surrounding air oxidation product species. Heat transfer metal container through conduction, radiation modelled by...
Thermal and dielectric properties of rigid-rod bifunctional epoxy resin 4,4-bis(2,3-epoxypropoxy) biphenyl (BP) commercial diglycidyl ether bisphenol A (DGEBA) were studied using differential scanning calorimeter (DSC), thermogravimetric analyzer (TGA), dynamic mechanical (DMA), thermal (TMA) (DEA). These two epoxies cured with cyanate ester hardener 2,2’-bis(4-cyanatophenyl) propane (AroCy B10). The BP/B10 system consisting a structure exhibited better than the DGEBA/B10 flexible structure....
The durability of mesoporous films comprised tungsten oxide nanoparticles was studied by monitoring their electrochromic performance during extended cycling in lithium perchlorate solution. Standard rapidly lost charge capacity as detached from the film and were to This issue mitigated through use protection layers including evaporated LiAlF4 alumina applied atomic layer deposition (ALD). Three ALD cycles offered superior 100 nm LiAlF4, enabling >2500 with no appreciable change performance....
Numerical predictions of the effects partial fuel-fill on pressure histories and performance ethylene-air mixtures in a pulse detonation engine (PDE) were confirmed qualitatively by experiments conducted at Stanford University. Quantitative comparisons not possible because detonable mixture considered system parameters different simulations. Here, we report computational results same geometric used find agreement to be good quantitatively. We use our current past show that many major flow...