Graduate Thesis Or Dissertation
 

A CFD Analysis of a Single Channel in the Mars Hopper Engine

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/db78th79b

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  • The Mars Hopper is an alternative extraterrestrial vehicle for the collection of samples from the Martian surface. This thesis studied the engine of the Mars Hopper to assess the validity of the current planned launch cycle according to current parameters. To do this, the engine was simplified to an average 1 16th channel of the Mars Hopper Engine. Using StarCCM+, a computational fluid dynamics software package, the physics of the channel was analyzed. As the beryllium thermal capacitor transfers energy to the carbon dioxide propellant, an initial start-up effect is observed over the first half a second. After the first half a second the velocity, pressure and temperature profiles show a linear decrease. Extrapolating the results, it appears the hopper will have useful thrust for 13.6 seconds. This is 6.4 seconds less than initial calculations conducted. Thus, the launch range expectations will need to be revised to account for the drop in overall flight time.
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file details KollChristopherJ2017.pdf 2017-11-08 Público Descargar