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

http://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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  • description.provenance : Made available in DSpace on 2017-10-16T23:46:16Z (GMT). No. of bitstreams: 2license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5)KollChristopherJ2017.pdf: 2591809 bytes, checksum: 8b7461436bea9fd4d327dad41c16ed0a (MD5) Previous issue date: 2017-08-28
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2017-10-16T18:32:24Z (GMT) No. of bitstreams: 2license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5)KollChristopherJ2017.pdf: 2591809 bytes, checksum: 8b7461436bea9fd4d327dad41c16ed0a (MD5)
  • description.provenance : Submitted by Christopher Koll (kollc@oregonstate.edu) on 2017-10-16T05:15:38ZNo. of bitstreams: 2license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5)KollChristopherJ2017.pdf: 2591809 bytes, checksum: 8b7461436bea9fd4d327dad41c16ed0a (MD5)
  • description.provenance : Rejected by Julie Kurtz(julie.kurtz@oregonstate.edu), reason: Hi CJ,I am rejecting your thesis because it's in track change mode so there is a box on the right hand side, so the thesis is not full screen. There was also a problem with the page numbers starting on the List of Tables, so the Introduction is page 2 and should be page 1, removing the page number in the pretext pages.One last thing is there are two page number 68, so to fix this when you renumber the pages.Everything else looks good. Once revised, log back into ScholarsArchive and go to the upload page. Replace the attached file with the revised PDF and resubmit.Thanks,Julie on 2017-09-25T17:41:57Z (GMT)
  • description.provenance : Approved for entry into archive by Margaret Mellinger(margaret.mellinger@oregonstate.edu) on 2017-10-16T23:46:16Z (GMT) No. of bitstreams: 2license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5)KollChristopherJ2017.pdf: 2591809 bytes, checksum: 8b7461436bea9fd4d327dad41c16ed0a (MD5)
  • description.provenance : Submitted by Christopher Koll (kollc@oregonstate.edu) on 2017-09-18T22:10:58ZNo. of bitstreams: 2license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5)KollChristopherJ2017.pdf: 2507967 bytes, checksum: 58a0558cbe8bccb15883ae5f426929aa (MD5)

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