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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Society of Propulsion Engineers
Journal Basic Information
Journal DOI :
The Korean Society of Propulsion Engineers
Editor in Chief :
Volume & Issues
Volume 13, Issue 6 - Dec 2009
Volume 13, Issue 5 - Oct 2009
Volume 13, Issue 4 - Aug 2009
Volume 13, Issue 3 - Jun 2009
Volume 13, Issue 2 - Apr 2009
Volume 13, Issue 1 - Feb 2009
Selecting the target year
Methodical Aspects of Experimental Improvement on Working Capacity of Liquid Rocket Engine
Kim, Cheul-Woong ; Bershadskiy, Vitaly A. ; Kim, Sang-Heon ; Oh, Seung-Hyub ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 1~9
As a result of the study on a number of the works, published in Russia, the methodical aspects of experimental improvement on working capacity of LRE (Liquid Rocket Engine) are reviewed. In the article, on the basis of the experience of Russia and USA, the special features of experimental improvement on working capacity of LRE and the methods of its rational implementation formulated. The organizational and technical solutions of experimental improvement on working capacity of LRE for achieving the required level of the reliability and decreasing the material expenditures are presented in the article. These suggested solutions can be used for the development of LRE.
Capability of Turbulence Modeling Schemes on Estimating the Film Cooling at Parallel Wall Jet-Nozzle Configuration
Lee, Jun ; Kim, Yoo ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 10~18
Numerical simulation has been performed in this study to investigate the capabilities of turbulence modeling schemes on estimating the film cooling at a referenced parallel wall jet-nozzle configuration. Also a additional simulation has been performed for film cooling under 2-dimensional axis symmetry conditions at a parallel wall jet-nozzle configuration. It was concluded that the best turbulence model is the standard
model with enhanced wall functions. Also a additional simulation showed the film cooling characteristics that are resonable physically.
The Response Characteristics of the Hydrogen Peroxide Monopropellant Thruster as Injector and Catalyst Grain Size
An, Sung-Yong ; Park, Dae-Jong ; Chung, Seung-Mi ; Kwon, Se-Jin ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 19~26
The response characteristics of
monopropellant thrusters at a pulse mode were presented in this paper. A catalyst bed was fixed to
to investigate the thruster design effect to response time. Three different thrusters (50 N class) having different injectors, ullage volumes, catalyst grain sizes, and reactor volumes were prepared to investigate the response characteristics. As a result, the ignition delay, pressure rising and tail-off time of case 2-2 thruster with 16-20 mesh catalyst size were 14, 108, 94 ms respectively, which were comparable to requirement of response time at commercial hydrazine thrusters.
A Numerical Simulation on the Process of Diaphragm Opening in Shock Tube Flows
Shin, Choon-Sik ; Jeong, June-Chang ; Suryan, Abhilash ; Kim, Heuy-Dong ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 27~33
Shock tube flow measurement has been often hampered a finite opening time of diaphragm, but there is no systematic work to investigate its effect on the shock tube flow. In the present study, both the experimental and computational works have been performed on the shock tube flows at low pressure ratios. The computational analysis has been performed using the two-dimensional, unsteady, compressible Navier-Stokes equations, based upon a TVD MUSCL finite difference scheme. It is known that the present computational results reproduce the experimental data with good accuracy and simulate successfully the process of diaphragm opening as a function of time. The concept of an imaginary center is introduced to quantify the non-centered expansion wave due to a finite opening time of diaphragm. The results obtained show that the diaphragm opening time is reduced as the initial pressure ratio of shock tube increases, leading to the effect of a finite opening time of diaphragm to be more remarkable at low pressure ratios.
Numerical Study on the Effect of Turbine Blade Shape on Performance Characteristics of a Dental Air Turbine Handpiece
Lee, Jeong-Ho ; Kim, Kui-Soon ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 34~42
High-speed air turbine handpieces have been used as a dental cutting tool in clinical dentistry for over 50 years, but little study has been reported on their performance analysis. Therefore, the effect of turbine blade shape on performance characteristics of dental air turbine handpiece were studied using CFD in this paper. Computations have been performed for five different positions of turbine blade by using frozen rotor method that is one of steady-state method. The characteristics of turbine blade for shapes and reflection angles were analyzed. As a result of the computation, torque is increased by increasing the reflection angle of turbine blade.
Analysis for Operation Point Change in Mode Transition at the Turbopump-Gas Generator Coupled Test
Nam, Chang-Ho ; Kim, Seung-Han ; Park, Soon-Young ; Kim, Cheul-Woong ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 43~50
The characteristics at the intermediate operation point of the turbopump-gas generator(TP-GG) coupled test were investigated by analytical method. The pump outlet pressure, gas generator mixture ratio, gas generator pressure, and temperature were examined considering risk minimization of test. The engine system shows different behavior from the TP-GG coupled test at the intermediate operation point since the combustion pressure feeds back to the flow rate in the lines. The advanced valve changes in the combustor line helps less risky mode transition.
Structural Optimization of Heat Dissipating Structure with Forced Convection
Yoon, Gil-Ho ; Kang, Nam-Cheol ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 51~57
In this study, a new topology optimization method is developed to design heat-dissipating structure with forced convection. To cool down electrical devices or mechanical machines, two types of convection models have been widely used: the natural convection model with a large Archimedes number and the forced convection with a small Archimedes number. In these days, lots of engineering application areas such as electrochemical conversion devices (Fuel cell) or rocket propulsion engines adopt the forced convection to dissipate the generated heat. Therefore, to our knowledge, it becomes an important issue to design flow channels inside which the generated heat dissipate. Thus, this paper studies optimal topological designs considering fluid-heat interactions. To consider the effect of the advection in the heat transfer problem, the incompressible Navier-stokes equation is solved. This paper numerically studies the coupling phenomena and presents optimal channel design considering forced convection.
Pulse Energy Utilization in Space
Choi, Soo-Jin ; Han, Tae-Hee ; Lee, Hyun-Hee ; Lee, Kyung-Cheol ; Yoh, Jai-Ick ;
Journal of the Korean Society of Propulsion Engineers, volume 13, issue 1, 2009, Pages 58~71
The blast wave released during the initiation of energetic materials gives rise to pulse energy generation, characterized by a sudden increase of potential energy. A highly efficient energy source, sought from pulse-type lasers, may be utilized in various space propulsion and power applications. This paper introduces a scheme of utilizing the laser energy in 1) attitude control of a satellite requiring of a low thrust, 2) innovative laser-induced drug delivery, 3) implosion-based micro piston development, 4) deflecting and zapping of space debris for laser kill purpose, and 5) finally lunar detection using laser induced breakdown spectroscopy.