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A Coupled Computational Framework for the Transient Heat Transfer in a Circular Pipe Heated Internally With Expanding Heat Sources
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present work, a transient heat transfer problem induced by internal combustion of energetic materials was studied. Most of previous studies utilized a lumped-parameter model to predict the parameter distributions ...
Interior Ballistic Modeling and Simulation for Different Charge Zones in Modular Charge System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The modular charge is developed to replace the conventional bagged charge systems for many advantages. In the interior ballistic cycle of a modular charge system, the nonsimultaneous ignition of propellant in different ...
Modeling of Interior Ballistic Gas Solid Flow Using a Coupled Computational Fluid Dynamics Discrete Element Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In conventional models for twophase reactive flow of interior ballistic, the dynamic collision phenomenon of particles is neglected or empirically simplified. However, the particle collision between particles may play an ...
Numerical Simulation and Analysis of the Muzzle Flow During the Revolving Barrel Gun Firing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The revolving barrel gun is the principal component of the closein weapons system (CIWS) that provides important terminal defense against antiship cruise missiles that have penetrated fleet defenses. The muzzle flow field ...
Transient Heat Transfer of a Hollow Cylinder Subjected to Periodic Boundary Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The purpose of this paper is to study the transient temperature responses of a hollow cylinder subjected to periodic boundary conditions, which comprises with a short heating period (a few milliseconds) and a relative long ...
Simulation of Nonlinear Heat Conduction in Perforated Material by Improved Moving Particle Semi-Implicit Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An improved moving particle semi-implicit (MPS) method is presented to simulate heat conduction with temperature-dependent thermal conductivity. Based on Taylor expansion, a modified Laplacian operator is proposed, and its ...
Performance Variation of Transient Propulsion System Induced by Machining Errors in a Variable Combustion Chamber
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gun propulsion is a special mechanical system where machining errors in its components are inevitable. In particular, the gun barrel, which constitutes the internal combustion system, will be subject to structural changes ...
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