Measurement and simulation of regression rate and development of a design code for hybrid rocket motors

Serin, Nadir


Analysis of transient regimes in solid rocket propulsion
Ak, Mehmet Ali; Vural, Hüseyin; Department of Mechanical Engineering (2001)
Comparison of analysis methods of embedded retaining walls
Harmandar, Serkan; Özkan, M. Yener; Department of Civil Engineering (2006)
In this study a single-propped embedded retaining wall supporting a cohesionless soil is investigated by four approaches, namely limit equilibrium, subgrade reaction, pseudo-finite element and finite element methods. Structural forces, such as strut loads, wall shear forces, bending moments are calculated by each method and results are compared. The analyses are carried for for three values of internal friction angle of soil; 30o, 35o, and 40o. Effects of modulus of soil elasticity of the backfill and wall ...
Application of ultrasonic burning rate measurement method on closed bombs
Mumcu, Berkan; Kurtuluş, Dilek Funda; Arkun, Uğur; Department of Aerospace Engineering (2013)
In this thesis study, detailed information about solid rocket motors and ultrasonic burning rate measurement method is given. An experimental setup is prepared for applying the ultrasonic burning rate measurement method. Before performing the burning tests, some pre-tests are performed for affirming the ultrasonic sensor and obtaining some experimental coefficients. Two different types of propellants, which do not include aluminum, are produced for the burning tests. The first type of the propellants has tw...
Numerical analysis, design and two port equivalent circuit models for split ring resonator arrays
Yaşar Örten, Pınar; Sayan, Gönül; Department of Electrical and Electronics Engineering (2010)
Split ring resonator (SRR) is a metamaterial structure which displays negative permeability values over a relatively small bandwidth around its magnetic resonance frequency. Unit SRR cells and arrays have been used in various novel applications including the design of miniaturized microwave devices and antennas. When the SRR arrays are combined with the arrays of conducting wires, left handed materials can be constructed with the unusual property of having negative valued effective refractive indices. In th...
Development of an iterative method for liquid-propellant combustion chamber instability analysis
Cengiz, Kenan; Özyörük, Yusuf; Department of Aerospace Engineering (2010)
Controlling unsteady combustion induced gas flow fluctuations and the resultant motor vibrations is a very significant step in rocket motor design. It occurs when the unsteady heat release due to combustion happens to feed the acoustic oscillations of the closed duct forming a feed-back system. The resultant vibrations concerned may even lead to total failure of the rocket system unless analysed and tested thoroughly. This thesis aims developing a linear numerical analysis method for the growth rate of inst...
Citation Formats
N. Serin, “Measurement and simulation of regression rate and development of a design code for hybrid rocket motors,” Ph.D. - Doctoral Program, Middle East Technical University, 2001.