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Investigation on Performance Characteristics of Hydrazine Monopropellant Thruster according to Reaction Chamber Adiabatic Temperature [PDF]
فصلنامه علوم و فناوری فضایی, 2022 In this paper, by creating and developing a code based on thermodynamics and gas dynamics equations, the performance characteristics of a 1N hydrazine monopropellant thruster such as thrust force, specific impulse, characteristic exhaust velocity, and ...
Seyyed Rashad Rouholamini +3 more
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Acoustics, 2022 The second-order partial differential wave Equation (Cauchy’s first equation of motion), derived from Newton’s force equilibrium, describes a standing wave field consisting of two waves propagating in opposite directions, and is, therefore, a “two-way ...
Hans-Joachim Raida
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Spherical One-Way Wave Equation
Acoustics, 2021 The coordinate-free one-way wave equation is transferred in spherical coordinates. Therefore it is necessary to achieve consistency between gradient, divergence and Laplace operators and to establish, beside the conventional radial Nabla operator ∂Φ/∂r ...
Oskar Bschorr, Hans-Joachim Raida
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Factorized One-Way Wave Equations
Acoustics, 2021 The method used to factorize the longitudinal wave equation has been known for many decades. Using this knowledge, the classical 2nd-order partial differential Equation (PDE) established by Cauchy has been split into two 1st-order PDEs, in alignment with
Oskar Bschorr, Hans-Joachim Raida
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AIP Advances, 2020 Thrust and total impulse performance of a SparkJet actuator are affected by pressure waves inside the cavity, so it is important to understand these effects.
Hyung-Jin Kim +4 more
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Effect of Spherical Silver Particles Size of the Catalyst Bed on Hydrogen Peroxide Monopropellant Thruster Performance [PDF]
Journal of Applied Fluid MechanicsIn this paper, an analytical approach combined with a two-dimensional computational fluid dynamics (CFD) model is pursued to simulate the fluid flow in a monopropellant thruster for satellite propulsion systems.
F. Benzenine +3 more
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An analysis of Iran banking system balance sheet insolvency and its impact on economic growth using A DSGE model [PDF]
سیاستگذاری اقتصادیPurpose: Pricing The structure of Iranian financial systems is based on banking loans and credits. For this reason, Iranian commercial banks maintain the monopoly over supplying credits to various sectors.
Hasan Chenarani +3 more
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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
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A Nonlinear Damper with Dynamic Load and an Elastic Slit Membrane: Modeling and Interaction Analysis
Applied SciencesThis article presents research into the feasibility of applying a nonlinear damper of a new conceptual structure. The key component of the damper is a circular membrane with slits that can move in a cylinder filled with viscous fluid.
Mostafa Sadeghian +6 more
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Thermodynamic performance modeling, optimization and numerical simulation of RBCC ejector mode
Propulsion and Power ResearchEjector mode is a unique and critical phase of wide-range rocket-based combined cycle (RBCC) engine. In this paper, a quasi-one-dimensional thermodynamic performance modeling method, with more detailed model treatments for the inlet-diffuser system ...
Feiteng Luo +5 more
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