Results 21 to 30 of about 20,787 (234)
Supercritical Injection Modeling by an Incompressible but Variable Density Approach
Aerospace, 2023 Supercritical nitrogen jet behavior is modeled using an incompressible but variable density approach developed for variable density jets. Following mechanical and thermal breakup concepts, several injection conditions relevant to liquid rocket propulsion
Leandro B. Magalhães +2 more
doaj +1 more source
Performance Analysis of a Kerosene/Gaseous Oxygen Liquid Rocket Engine
Engineering ProceedingsOne of the most widely used rocket propulsion systems that uses liquid propellants is the liquid rocket engine. Due to their high density and specific impulse, liquid fuels and oxidizers are preferred.
Saravanan Ganesan +4 more
doaj +1 more source
Cavitation Instability in Subcooled Liquid Nitrogen Nozzle Flows
Journal of Fluid Science and Technology, 2008 Subcooled cryogenic fluids are used in many fields such as a propellant for liquid propulsion rocket systems and a coolant for superconducting systems.
Kazuki NIIYAMA +3 more
doaj +1 more source
AIP Advances, 2022 The combined effects of radiative heat loss, curvature, and preferential diffusion on laminar non-premixed flames (or flamelets) are investigated in this work by using asymptotic analysis.
Yushan Gao +4 more
doaj +1 more source
Review of State-of-the-Art Green Monopropellants: For Propulsion Systems Analysts and Designers
Aerospace, 2021 Current research trends have advanced the use of “green propellants” on a wide scale for spacecraft in various space missions; mainly for environmental sustainability and safety concerns.
Ahmed E. S. Nosseir +2 more
doaj +1 more source
Aerospace, 2022 With the growth of the satellite industry, the demand for a propulsion system for small launch vehicles and spacecraft has increased. Small liquid rocket engines may require Ultra-Low specific speed centrifugal pumps due to the low required thrust and ...
Hye In Kim +3 more
doaj +1 more source
On Maximum Evaporation Rates of Liquid Droplets in Rocket Motors [PDF]
, 1953 Upper limits have been estimated for the rate of evaporation of small liquid droplets in representative rocket combustion chambers. The droplets are assumed to be isothermal at all times. The droplet temperature as a function of time is determined by an
Penner, S. S.
core +1 more source
Study of Hot Gas Pressurizing System Tank and Liquid Rocket Engine Interaction by Dynamic Simulation [PDF]
فصلنامه علوم و فناوری فضایی, 2013 Providing of sufficient input pressure of pumps is Pressurizing system tank mission. In structure of objective propulsion system, pressurizing system of fuel tank is hot gas kind that is feeding with engine which caused of operation relational.
H. R. Ali Mohammady +4 more
doaj
Applied Sciences, 2023 Due to the extreme temperatures inside the combustion chambers of liquid propellant rocket engines, the walls of the combustion chamber and the nozzle are cooled by either the fuel or the oxidizer in what is known as regenerative cooling.
Yigithan Mehmet Kose, Murat Celik
doaj +1 more source
Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space
Advanced Materials, EarlyView.In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz +17 more
wiley +1 more source