Optimum characteristic length of gas generator for liquid propellant rocket engine

Evaluation and Determination of Tramadol and Methadone in Vitreous Samples With the Aid of Dispersive Liquid-Liquid Microextraction- High Performance Liquid Chromatography

“…Determination of drugs in biological samples is mainly for the purpose of studying and evaluating their residual levels in the body [15]. After taking the drugs, they do not completely excrete the body and remain in various tissues.…”

Coaxial-Injector Surrogate Modeling Based on Reynolds-Averaged Navier–Stokes Simulations Using Deep Learning

“…Both variables have an opposing dynamics as larger engines will typically allow for better combustion as flow residence time in the combustion chamber is increased. The dimensioning of the combustion-chamber length is associated to the characteristic length which directly depends on the flame length L f l [44]. The rationale is smaller flame-lengths allow greater system compactness.…”

Research progress on the catalytic and thermal decomposition of ammonium dinitramide (ADN)

“…Propellants serve as the power source for rockets and satellite engines, and their decomposition characteristics directly affect the efficiency and survivability of the engine. 1,2 Currently, the primary focus of researchers is to maximize the energy output of propellants while reducing environmental contamination. 3,4 Ammonium perchlorate (AP) has been widely used as an oxidizer in solid propellants because of its fast-burning rate, high combustion stability, and relatively simple preparation process.…”