Multiphase Modeling of Solid Rocket Motor Internal Environment, Phase I

Metadata Updated: February 28, 2019

Solid rocket motor (SRM) design requires thorough understanding of the slag accumulation process in order to: predict thrust continuity, optimize propellant conversion efficiency, predict coning effects from sloshing, and assess potential orbital debris (slag) hazard. Current state-of-the-art models for SRM environment do not have the capability to simulate the accumulation and dynamics of slag in SRMs as they rely on a Lagrangian particle approach that is only capable of predicting the location of accumulation. In this STTR effort, CFDRC will team up with Mississippi State University and Tetra Research to develop models for quantifying the effects of slag accumulation and dynamics on SRM performance. To enhance current slag modeling capabilities, an Eulerian-Lagrangian approach to accurately model a slag-phase is proposed, in which Lagrangian particles can be converted to an Eulerian description and vice-versa. The Phase I project aims at developing the basic numerical model for the transport and accumulation of a slag-phase in Loci/CHEM. The multiphase framework, comprising of gas-phase, a dense slag-phase, and Lagrangian particles representing aluminum and alumina, will be developed and demonstrated in the Phase I effort with a TRL starting at 2 and ending at 3. In Phase II, the models will be extended and validated to provide an accurate numerical approach for slag dynamics that incorporates many of the physical phenomena present during SRM operation, including the transfer from Eulerian to Lagrangian description of slag at burnout, increasing the technology readiness level by the end of a Phase II project from 3 to 5.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_93658
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id f13a5622-283f-4b1e-88dd-f5907ecea5d8
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2018-06-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 980a9945cd175636f19823af8ddf117a03b67d10
Source Schema Version 1.1

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