mirage

Sacramento Masters Theses

DSpace/Manakin Repository

 

Show simple item record

dc.contributor Bergquam, James en_US
dc.contributor.advisor Zhou, Dongmei en_US
dc.contributor.author Moore, Stephen Scot
dc.date.accessioned 2010-09-17T20:42:09Z
dc.date.available 2010-09-17T20:42:09Z
dc.date.issued 2010-09-17
dc.date.submitted 2010-08-11
dc.identifier.uri http://hdl.handle.net/10211.9/643
dc.description Thesis (M.S., Mechanical Engineering) -- California State University, Sacramento, 2010. en_US
dc.description.abstract There are several assumptions made when the ballistics of a solid rocket motor (SRM) is being modeled. Among them is the assumption that the case wall of the motor is adiabatic, i.e., no heat from combustion is lost through the case and nozzle walls as a solid rocket motor burns. However, this adiabatic assumption is usually not numerically validated. This work is intended to prove or disprove such an assumptions through computational studies. First, CAD models are built using ProE, that represent successive layers of a solid fuel as it burns back. Each individual model is then meshed in the computational fluid dynamics (CFD) preprocessor, GAMBIT. The individual mesh files are then imported into the CFD program FLUENT and the simulations are finally run in FLUENT. Heat loss models are compared to adiabatic models. The results show radiative heat loss is most significant inside the motor case whereas convective heat loss is greater in the nozzle. Convective losses in the nozzle dominate the overall heat loss. The heat loss in general does not significantly affect ballistic performance, validating the adiabatic assumption, however the CAD-CFD method is useful for other ballistics analysis. en_US
dc.description.sponsorship Mechanical Engineering en_US
dc.language.iso en_US en_US
dc.subject Solid propellant en_US
dc.subject FLUENT en_US
dc.subject Pro engineer en_US
dc.subject Heat transfer en_US
dc.title Ballistics modeling of combustion heat loss through chambers and nozzles of solid rocket motors en_US
dc.type Thesis en_US


Files in this item

Thumbnail
Icon

This item appears in the following Collection(s)

Show simple item record

Search DSpace


My Account

RSS Feeds