نتایج جستجو برای: solid propellant
تعداد نتایج: 190589 فیلتر نتایج به سال:
We describe our parallel 3-D surface and volume mesh modification strategy for large-scale simulation of physical systems with dynamically changing domain boundaries. Key components include an accurate, robust, and efficient surface propagation scheme, frequent mesh smoothing without topology changes, infrequent remeshing at regular intervals or when triggered by declining mesh quality, a novel...
Parallel Mesh Adaptation for Highly Evolving Geometries with Application to Solid Propellant Rockets
We describe our parallel 3-D surface and volume mesh modification strategy for large-scale simulation of physical systems with dynamically changing domain boundaries. Key components include an accurate, robust, and efficient surface propagation scheme, frequent mesh smoothing without topology changes, infrequent remeshing at regular intervals or when triggered by declining mesh quality, a novel...
The ability to predict with some accuracy a given solid rocket motor’s performance before undertaking one or several costly experimental test firings is important. On the numerical prediction side, as various component models evolve, their incorporation into an overall internal ballistics simulation program allows for new motor firing simulations to take place, which in turn allows for updated ...
Bonding agents are one of the most important components of solid propellants that enhance the interaction between solid particles and binders. Many bonding agents have been reported so far and sufficient laboratory studies have been carried out on their mechanism of action, including, hydantoin, isocyanorathe, vinyl ether, base-shif, etc. Borate esters are other group of bonding agents that mos...
The ability to understand and predict the expected internal behaviour of a given solid-propellant rocket motor under transient conditions is important. Research towards predicting and quantifying undesirable transient axial combustion instability symptoms necessitates a comprehensive numerical model for internal ballistic simulation under dynamic flow and combustion conditions. A numerical mode...
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