Ruedas, T. (2017) Globally smooth approximations for shock pressure decay in impacts. Icarus, 289, Seiten 22-33. Elsevier. doi: 10.1016/j.icarus.2017.02.008. ISSN 0019-1035.
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Offizielle URL: http://dx.doi.org/10.1016/j.icarus.2017.02.008
Kurzfassung
New forms of empirical formulae that provide an approximate description of the decay of shock pressure with distance in hypervelocity impacts are proposed. These forms, which are intended for use in applications such as large-scale mantle convection models, are continuous and smooth from the point of impact to arbitrarily large distances, thereby avoiding the need to divide the domain into different decay regimes and yielding the maximum pressure in a self-consistent way without resorting to the impedance-match solution. Individual fits for different impact velocities as well as a tentative general fitting formula are given, especially for the case of dunite-on-dunite impacts. The temperature effects resulting from the shock are estimated for different decay models, and the differences between them are found to be substantial in some cases, potentially leading to over- or underestimates of impact heating and melt production in modeling contexts like mantle convection, where such parameterizations are commonly used to represent giant impacts.
elib-URL des Eintrags: | https://elib.dlr.de/111193/ | ||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||
Titel: | Globally smooth approximations for shock pressure decay in impacts | ||||||||
Autoren: |
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Datum: | Juni 2017 | ||||||||
Erschienen in: | Icarus | ||||||||
Referierte Publikation: | Ja | ||||||||
Open Access: | Ja | ||||||||
Gold Open Access: | Nein | ||||||||
In SCOPUS: | Ja | ||||||||
In ISI Web of Science: | Ja | ||||||||
Band: | 289 | ||||||||
DOI: | 10.1016/j.icarus.2017.02.008 | ||||||||
Seitenbereich: | Seiten 22-33 | ||||||||
Verlag: | Elsevier | ||||||||
ISSN: | 0019-1035 | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | Impact processes; Terrestrial planets; Thermal histories; Interiors | ||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||
HGF - Programm: | Raumfahrt | ||||||||
HGF - Programmthema: | Erforschung des Weltraums | ||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||
DLR - Forschungsgebiet: | R EW - Erforschung des Weltraums | ||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Vorhaben Planetary Evolution and Life (alt) | ||||||||
Standort: | Berlin-Adlershof | ||||||||
Institute & Einrichtungen: | Institut für Planetenforschung > Planetenphysik | ||||||||
Hinterlegt von: | Ruedas Gomez, Thomas | ||||||||
Hinterlegt am: | 11 Apr 2017 12:54 | ||||||||
Letzte Änderung: | 31 Okt 2023 07:14 |
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